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无忧小子 发表于 2012-3-29 13:42:31

东北大学12春《常用电器控制技(含PLCⅠ》在线作业123答案

东北大学12春学期《常用电器控制技术(含PLC)Ⅰ》在线作业1
一、单选题：
1. 三相异步电动机的功率因数总是滞后的。    （满分：4）
    A. 错误
    B. 正确
2. 衔铁绕棱角转动使用于交流接触器。    （满分：4）
    A. 错误
    B. 正确
3. 磁吹式灭弧装置灭弧能力最强。    （满分：4）
    A. 错误
    B. 正确
4. 点接触的允许通过电流最大。    （满分：4）
    A. 错误
    B. 正确
5. 时间继电器中的电动机式继电器延时误差大，可延时几秒到几分。    （满分：4）
    A. 错误
    B. 正确
6. 改变三相异步电动机的电源相序就可改变转子的转向。    （满分：4）
    A. 错误
    B. 正确
7. 灭弧罩的灭弧能力最强。    （满分：4）
    A. 错误
    B. 正确
8. 点接触的允许通过电流最小。    （满分：4）
    A. 错误
    B. 正确
9. 接触器的铁心是最容易损坏的部件。    （满分：4）
    A. 错误
    B. 正确
10. 当发生短路或严重过负荷时，过电流脱扣器衔铁断开，断路器触点自动吸合。    （满分：4）
    A. 错误
    B. 正确
11. 异步电动机不论在电网负载和应用数量上都要高于同步电动机。    （满分：4）
    A. 错误
    B. 正确
12. 三相绕线式异步电动机在转子回路中串电阻可增大起动转矩，所串电阻越大，起动转矩就越大。    （满分：4）
    A. 错误
    B. 正确
13. 异步电动机空载运行时的功率因数很高。    （满分：4）
    A. 错误
    B. 正确
14. 交流电磁机构的吸力与气隙大小密切相关。    （满分：4）
    A. 错误
    B. 正确
15. 主磁通大小由电源电压、电源频率和一次线圈匝数决定。    （满分：4）
    A. 错误
    B. 正确
二、多选题：
1. 下列不属于变压器的相数为(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">单相变压器</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">双相变压器</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">三相变压器</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">多相变压器</span>
2. 一般控制继电器返回值(    )范围内。    （满分：4）
    A. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.1-0.2</span>
    B. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.1-0.4 </span>
    C. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.4-0.6</span>
    D. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.6-1.0</span>
3. 按动作原理分，下列属于自动电器有(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">按钮</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">转换开关</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: &quot;Calibri&quot;,&quot;sans-serif&quot;; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><span style="mso-spacerun: yes"> </span></span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">隔离开关</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">继电器</span>
4.   （满分：4）
    A. A
    B. B
    C. C
    D. D
5.   （满分：4）
    A. A
    B. B
    C. C
    D. D
6. 下列不属于衔铁的运动方式(    )。    （满分：4）
    A. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">.</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">衔铁绕棱角转动</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">衔铁绕轴转动</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">衔铁曲线运动</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">衔铁直线运动</span>
8. 按用途分，下列属于配电电器有(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接触器</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">按钮</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">熔断器</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">隔离开关</span>
9.   （满分：4）
    A. A
    B. B
    C. C
    D. D
10. 保护用继电器系数(    )范围内。    （满分：4）
    A. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.1-0.2</span>
    B. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.1-0.4</span>
    C. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.4-0.6</span>
    D. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.6-1.0</span>
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东北大学12春学期《常用电器控制技术(含PLC)Ⅰ》在线作业2
一、单选题：
1. 低压电器指交流额定电压为1200V及以下或直流额定电压为1700V及以下的电器。    （满分：4）
    A. 错误
    B. 正确
2. 凡是能自动或手动接通或断开电路，以及对电路或非电对象能进行切换、控制、保护、检测、变换和调节的电器元件系统称为电器。    （满分：4）
    A. 错误
    B. 正确
3. PLC编程容易，并但不能够现场修改程序。    （满分：4）
    A. 错误
    B. 正确
4. 梯形图中的触点应画在水平支路上，不应画在垂直支路上。    （满分：4）
    A. 错误
    B. 正确
5. 中间继电器的主要用途是：信号传递和放大，实现多路同时控制，起到中间转换的作用    （满分：4）
    A. 错误
    B. 正确
6. 低压断路器又称自动空气开关    （满分：4）
    A. 错误
    B. 正确
7. 梯形图中的触点可以多次串联或并联(但有上限的要求)，但线圈只能并联而不能串联。    （满分：4）
    A. 错误
    B. 正确
8. CPU有两个工作方式，即STOP方式和RUN方式。    （满分：4）
    A. 错误
    B. 正确
9. 为了防止由于输入触点的颤振，电路中一般均设有RC滤波器    （满分：4）
    A. 错误
    B. 正确
10. PLC的I/O响应滞后时间指的是输出动作滞后输入动作的时间。    （满分：4）
    A. 错误
    B. 正确
11. I/O接口是PLC与现场生产设备直接连接的端口。    （满分：4）
    A. 错误
    B. 正确
12. 结构(STRUCT)是指将一组不同类型的数据组合在一起，形成一个单元。    （满分：4）
    A. 错误
    B. 正确
13. 我国还没有开始研制大型PLC。    （满分：4）
    A. 错误
    B. 正确
14. plc可靠性低，抗干扰能力弱 .( )    （满分：4）
    A. 错误
    B. 正确
15. 通信与外设服务指的是与编程器、其他设备进行信息交换、与网络进行通信以及设备中断服务等。    （满分：4）
    A. 错误
    B. 正确
二、多选题：
1. 利用编程器不可以(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">编制用户程序</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">输入程序</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">检查程序、修改程序</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接收现场的输入信号</span>
2. 下列哪项是属于系统存储器的功能(    )    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">系统存储器使用</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">EPROM</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">(只读存储器)，用于存放系统程序</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">用户存储器通常由用户程序存储器和功能存储器组成。</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">用扫描的方式接收输入设备的状态(即开关量信号)和数据(即模拟量信号)</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">与外围设备或计算机通信。</span>
3. 下面不是按照PLC功能分类的是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">低档机</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">中档机</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">高档机</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">小型机</span>
4. PLC的主要功能不包括(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">模拟量控制</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"> </span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">开关量逻辑控制</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><span style="mso-spacerun: yes"></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压检测</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字量控制</span>
5. STEP7的复合数据类型不包括(    )。    （满分：4）
    A. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">32</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">位整数</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数组</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">字符串</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">结构</span>
6. 数字量I/O模块中直流输入模块外接直流电源不包括(    )    （满分：4）
    A. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">12V</span>
    B. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">24V</span>
    C. 48V
    D. 96V
7. 国际上PLC的发展过程中，第一代产品的主要功能是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">逻辑控制</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字运算</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">增加一些特殊功能</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">通信和自诊断</span>
8. 第(    )代(70年代末&mdash;80年代初)是PLC的大发展时期，其功能及处理速度大大增加，尤其增加一些特殊功能模块(PID模块、远程I/O模块)和通信、自诊断模块等功能 。    （满分：4）
    A. 2
    B. 3
    C. 4
    D. 5
9. 西门子S7-300 PLC的硬件组成包括哪些(    )    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电源模块(</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">PS</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)</span>
    B. <span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">CPU</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">模块</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">接口模块</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">IM</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">以上都是</span>
10. PLC系统的工作过程不包括    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">初始化处理</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">扫描周期</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">采样输入信号</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">系统自诊断</span>转载请注明奥鹏作业答案网 www.ap5u.com
东北大学12春学期《常用电器控制技术(含PLC)Ⅰ》在线作业3
一、单选题：
1. 解放前，我国低压电器基本上是一片空白。从1953年开始至今，发展经历全面模仿苏联、自行设计、更新换代、技术引进、跟踪国外新产品等几个阶段。    （满分：4）
    A. 错误
    B. 正确
2. PLC编程容易，并但不能够现场修改程序。    （满分：4）
    A. 错误
    B. 正确
3. 软PLC的目前形式是&ldquo;PC+自动化控制软件包+分布式I/O模块。    （满分：4）
    A. 错误
    B. 正确
4. 为了提高PLC的可靠性采用了冗余技术。    （满分：4）
    A. 错误
    B. 正确
5. 梯形图按元件从右到左、从上到下绘制。    （满分：4）
    A. 错误
    B. 正确
6. 梯形图中的触点可以多次串联或并联(但有上限的要求)，但线圈只能并联而不能串联。    （满分：4）
    A. 错误
    B. 正确
7. 设置连锁保护可以提高PLC的可靠性。    （满分：4）
    A. 错误
    B. 正确
8. 使用中间输出指令可以将简单逻辑块程序组成复杂逻辑块程序。    （满分：4）
    A. 错误
    B. 正确
9. 复位指令是给指定位地址的&ldquo;位&rdquo;置0，并结束一个逻辑串    （满分：4）
    A. 错误
    B. 正确
10. 置位指令是给指定位地址的&ldquo;位&rdquo;置0，并结束一个逻辑串。    （满分：4）
    A. 错误
    B. 正确
11. 低压电器指交流额定电压为1200V及以下或直流额定电压为1700V及以下的电器。    （满分：4）
    A. 错误
    B. 正确
12. 置位指令是给指定位地址的&ldquo;位&rdquo;置1，并结束一个逻辑串。    （满分：4）
    A. 错误
    B. 正确
13. 梯形图中触点原则上不可以无限次的引用    （满分：4）
    A. 错误
    B. 正确
14. 控制电器指用于各种控制电路和控制系统的电器，如接触器、继电器、电动机起动器等。    （满分：4）
    A. 错误
    B. 正确
15. 我国还没有开始研制大型PLC。    （满分：4）
    A. 错误
    B. 正确
二、多选题：
1. 位逻辑指令处理的对象是&ldquo;(    )&rdquo;和&ldquo;1&rdquo;数字信号。    （满分：4）
    A. <p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">0</span></p>
    B. 2
    C. 3
    D. 4
2. PLC的主要功能不包括(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">模拟量控制</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"> </span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">开关量逻辑控制</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><span style="mso-spacerun: yes"></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压检测</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字量控制</span>
3. 在西门子PLC中，下列位逻辑指令符号(    )代表逻辑或非，常闭触点并联。    （满分：4）
    A. A
    B. AN
    C. O
    D. ON
4. 国际上PLC的发展过程中，第一代产品的主要功能是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">逻辑控制</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字运算</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">增加一些特殊功能</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">通信和自诊断</span>
5. 下列不属于逻辑指令(    )    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">位逻辑指令</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">定时器指令</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">计数器指令</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">功能指令</span>
6. PLC的环境适应空气环境中(    )气体对PLC工作可靠性的无影响    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">可燃性</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">爆炸性</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">有毒性</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">腐蚀性</span>
7. PLC具有极高的可靠性。控制系统中80%以上故障出现外围。传感器及外部开关故障45%，执行装置故障30%，接线方面的故障(    )%。    （满分：4）
    A. 1
    B. 5
    C. 10
    D. 20
8. 下列不属于编程语言的是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">梯形图(</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">LAD</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)语言</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">语句表(</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">STL</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)语言</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">低级语言</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">高级语言</span>
9. 在西门子PLC中，下列位逻辑指令符号(    )代表逻辑或，电路或触点并联    （满分：4）
    A. A
    B. AN
    C. O
    D. ON
10. S7-300 PLC中寄存器包括(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">累加器</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">地址寄存器</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数据块寄存器</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">以上都对</span>
东北大学12春学期《常用电器控制技术(含PLC)Ⅰ》在线作业3
一、单选题：
1. 解放前，我国低压电器基本上是一片空白。从1953年开始至今，发展经历全面模仿苏联、自行设计、更新换代、技术引进、跟踪国外新产品等几个阶段。    （满分：4）
    A. 错误
    B. 正确
2. PLC编程容易，并但不能够现场修改程序。    （满分：4）
    A. 错误
    B. 正确
3. 软PLC的目前形式是&ldquo;PC+自动化控制软件包+分布式I/O模块。    （满分：4）
    A. 错误
    B. 正确
4. 为了提高PLC的可靠性采用了冗余技术。    （满分：4）
    A. 错误
    B. 正确
5. 梯形图按元件从右到左、从上到下绘制。    （满分：4）
    A. 错误
    B. 正确
6. 梯形图中的触点可以多次串联或并联(但有上限的要求)，但线圈只能并联而不能串联。    （满分：4）
    A. 错误
    B. 正确
7. 设置连锁保护可以提高PLC的可靠性。    （满分：4）
    A. 错误
    B. 正确
8. 使用中间输出指令可以将简单逻辑块程序组成复杂逻辑块程序。    （满分：4）
    A. 错误
    B. 正确
9. 复位指令是给指定位地址的&ldquo;位&rdquo;置0，并结束一个逻辑串    （满分：4）
    A. 错误
    B. 正确
10. 置位指令是给指定位地址的&ldquo;位&rdquo;置0，并结束一个逻辑串。    （满分：4）
    A. 错误
    B. 正确
11. 低压电器指交流额定电压为1200V及以下或直流额定电压为1700V及以下的电器。    （满分：4）
    A. 错误
    B. 正确
12. 置位指令是给指定位地址的&ldquo;位&rdquo;置1，并结束一个逻辑串。    （满分：4）
    A. 错误
    B. 正确
13. 梯形图中触点原则上不可以无限次的引用    （满分：4）
    A. 错误
    B. 正确
14. 控制电器指用于各种控制电路和控制系统的电器，如接触器、继电器、电动机起动器等。    （满分：4）
    A. 错误
    B. 正确
15. 我国还没有开始研制大型PLC。    （满分：4）
    A. 错误
    B. 正确
二、多选题：
1. 位逻辑指令处理的对象是&ldquo;(    )&rdquo;和&ldquo;1&rdquo;数字信号。    （满分：4）
    A. <p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">0</span></p>
    B. 2
    C. 3
    D. 4
2. PLC的主要功能不包括(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">模拟量控制</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"> </span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">开关量逻辑控制</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><span style="mso-spacerun: yes"></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压检测</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字量控制</span>
3. 在西门子PLC中，下列位逻辑指令符号(    )代表逻辑或非，常闭触点并联。    （满分：4）
    A. A
    B. AN
    C. O
    D. ON
4. 国际上PLC的发展过程中，第一代产品的主要功能是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">逻辑控制</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字运算</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">增加一些特殊功能</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">通信和自诊断</span>
5. 下列不属于逻辑指令(    )    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">位逻辑指令</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">定时器指令</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">计数器指令</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">功能指令</span>
6. PLC的环境适应空气环境中(    )气体对PLC工作可靠性的无影响    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">可燃性</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">爆炸性</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">有毒性</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">腐蚀性</span>
7. PLC具有极高的可靠性。控制系统中80%以上故障出现外围。传感器及外部开关故障45%，执行装置故障30%，接线方面的故障(    )%。    （满分：4）
    A. 1
    B. 5
    C. 10
    D. 20
8. 下列不属于编程语言的是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">梯形图(</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">LAD</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)语言</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">语句表(</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">STL</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)语言</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">低级语言</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">高级语言</span>
9. 在西门子PLC中，下列位逻辑指令符号(    )代表逻辑或，电路或触点并联    （满分：4）
    A. A
    B. AN
    C. O
    D. ON
10. S7-300 PLC中寄存器包括(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">累加器</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">地址寄存器</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数据块寄存器</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">以上都对</span>
东北大学12春学期《常用电器控制技术(含PLC)Ⅰ》在线作业3
一、单选题：
1. 解放前，我国低压电器基本上是一片空白。从1953年开始至今，发展经历全面模仿苏联、自行设计、更新换代、技术引进、跟踪国外新产品等几个阶段。    （满分：4）
    A. 错误
    B. 正确
2. PLC编程容易，并但不能够现场修改程序。    （满分：4）
    A. 错误
    B. 正确
3. 软PLC的目前形式是&ldquo;PC+自动化控制软件包+分布式I/O模块。    （满分：4）
    A. 错误
    B. 正确
4. 为了提高PLC的可靠性采用了冗余技术。    （满分：4）
    A. 错误
    B. 正确
5. 梯形图按元件从右到左、从上到下绘制。    （满分：4）
    A. 错误
    B. 正确
6. 梯形图中的触点可以多次串联或并联(但有上限的要求)，但线圈只能并联而不能串联。    （满分：4）
    A. 错误
    B. 正确
7. 设置连锁保护可以提高PLC的可靠性。    （满分：4）
    A. 错误
    B. 正确
8. 使用中间输出指令可以将简单逻辑块程序组成复杂逻辑块程序。    （满分：4）
    A. 错误
    B. 正确
9. 复位指令是给指定位地址的&ldquo;位&rdquo;置0，并结束一个逻辑串    （满分：4）
    A. 错误
    B. 正确
10. 置位指令是给指定位地址的&ldquo;位&rdquo;置0，并结束一个逻辑串。    （满分：4）
    A. 错误
    B. 正确
11. 低压电器指交流额定电压为1200V及以下或直流额定电压为1700V及以下的电器。    （满分：4）
    A. 错误
    B. 正确
12. 置位指令是给指定位地址的&ldquo;位&rdquo;置1，并结束一个逻辑串。    （满分：4）
    A. 错误
    B. 正确
13. 梯形图中触点原则上不可以无限次的引用    （满分：4）
    A. 错误
    B. 正确
14. 控制电器指用于各种控制电路和控制系统的电器，如接触器、继电器、电动机起动器等。    （满分：4）
    A. 错误
    B. 正确
15. 我国还没有开始研制大型PLC。    （满分：4）
    A. 错误
    B. 正确
二、多选题：
1. 位逻辑指令处理的对象是&ldquo;(    )&rdquo;和&ldquo;1&rdquo;数字信号。    （满分：4）
    A. <p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">0</span></p>
    B. 2
    C. 3
    D. 4
2. PLC的主要功能不包括(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">模拟量控制</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"> </span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">开关量逻辑控制</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><span style="mso-spacerun: yes"></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电压检测</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字量控制</span>
3. 在西门子PLC中，下列位逻辑指令符号(    )代表逻辑或非，常闭触点并联。    （满分：4）
    A. A
    B. AN
    C. O
    D. ON
4. 国际上PLC的发展过程中，第一代产品的主要功能是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">逻辑控制</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数字运算</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">增加一些特殊功能</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">通信和自诊断</span>
5. 下列不属于逻辑指令(    )    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">位逻辑指令</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">定时器指令</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">计数器指令</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">功能指令</span>
6. PLC的环境适应空气环境中(    )气体对PLC工作可靠性的无影响    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">可燃性</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">爆炸性</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">有毒性</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">腐蚀性</span>
7. PLC具有极高的可靠性。控制系统中80%以上故障出现外围。传感器及外部开关故障45%，执行装置故障30%，接线方面的故障(    )%。    （满分：4）
    A. 1
    B. 5
    C. 10
    D. 20
8. 下列不属于编程语言的是(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">梯形图(</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">LAD</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)语言</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">语句表(</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Calibri','sans-serif'; mso-bidi-font-size: 11.0pt; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">STL</span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">)语言</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">低级语言</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">高级语言</span>
9. 在西门子PLC中，下列位逻辑指令符号(    )代表逻辑或，电路或触点并联    （满分：4）
    A. A
    B. AN
    C. O
    D. ON
10. S7-300 PLC中寄存器包括(    )。    （满分：4）
    A. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">累加器</span>
    B. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">地址寄存器</span>
    C. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">数据块寄存器</span>
    D. <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 11.0pt; mso-ascii-font-family: Calibri; mso-hansi-font-family: Calibri; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">以上都对</span>
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