石油北京17春油气储运工程专业英语第二阶段在线作业
石油北京17春油气储运工程专业英语第二阶段在线作业单选题 (共13道题)
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1.（2.5分） In pumping any liquid, the goal is to add energy to the liquid to cause it to move through a pipeline by overcoming the resistance of friction and changes in .
A、speed
B、flow
C、site
D、elevation
我的答案：D 此题得分：2.5分
2.（2.5分） Positive displacement pumps are used for volumes and when required pumping pressure is .
A、Small, moderate
B、Large, high
C、Large, moderate
D、Small, high
我的答案：D 此题得分：2.5分
3.（2.5分） In general, when large volume of liquid to be pumped and pressures are moderate, which equipment will be chosen?
A、centrifugal pumps
B、centrifugal compressors
C、positive displacement pumps
D、reciprocating compressors
我的答案：A 此题得分：2.5分
4.（2.5分） When pumps are connected in parallel, each pump operates at approximately .
A、same suction pressure and different discharge pressure
B、same suction and discharge pressure
C、different suction and discharge pressure
D、different suction pressure and same discharge pressure
我的答案：B 此题得分：2.5分
5.（2.5分） In a centrifugal unit, rotates.
A、diffuser
B、housing
C、impeller
D、rod
我的答案：C 此题得分：2.5分
6.（2.5分） For tight line operation, which one is right?
A、One station pumps directly into the suction side of the pumps at the next station and no tankage is open to the suction manifold at the intermediate station.
B、One station pumps directly into the tankage at the next station and no tankage is open to the suction manifold at the intermediate station.
C、One station pumps directly into the suction side of the pumps at the next station and a small tank is open to the suction manifold at the intermediate station.
D、One station pumps directly into the tankage at the next station and a small tank is open to the suction manifold at the intermediate station.
我的答案：A 此题得分：2.5分
7.（2.5分） If compressor cylinders of a single integral reciprocating compressors unit are operated in parallel, each cylinder operates with .
A、different suction and discharge pressure
B、different suction pressure and same discharge pressure
C、same suction pressure and different discharge pressure
D、same suction and discharge pressure
我的答案：D 此题得分：2.5分
8.（2.5分） In centrifugal compressors, energy is added to the gas by impeller .
A、confining
B、rotating
C、compressing
D、burning
我的答案：B 此题得分：2.5分
9.（2.5分） In centrifugal compressors, energy is added to the gas .
A、by confining the gas and then compressing
B、by the rotation of an impeller
C、by confining the gas
D、by compressing the gas
我的答案：B 此题得分：2.5分
10.（2.5分） Depending on the type of gas, may also be needed between compression stages to remove any liquids condensed by interstage cooling.
A、meters
B、heat exchanger
C、separators
D、tower
我的答案：C 此题得分：2.5分
11.（2.5分） In liquid pipeline, Pigs and sphere travel .
A、at higher velocity than liquid in the pipeline
B、awhile, then stop
C、at lower velocity than liquid in the pipeline
D、at about constant velocity
我的答案：D 此题得分：2.5分
12.（2.5分） Pipelines are often pigged first .
A、during construction
B、during ordinal operation
C、during testing following construction
D、after connection
我的答案：C 此题得分：2.5分
13.（2.5分） A pig launcher may be required .
A、at the end of the segment being pigged and at the end of a station
B、at the beginning of the segment being pigged and at the beginning of a station
C、at the beginning of the segment being pigged and at the end of a station
D、at the end of the segment being pigged and at the beginning of a station
我的答案：C 此题得分：2.5分
多选题 (共12道题)
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14.（2.5分） The size of flowlines required varies according to .
A、the capacity of the well being served
B、the temperature
C、the length of the line
D、the pressure available at the producing well
我的答案：ACD 此题得分：2.5分
15.（2.5分） This network of crude trunk lines comprises a wide variety of pipe .
A、locations
B、sizes
C、capacities
D、pressures
我的答案：BC 此题得分：2.5分
16.（2.5分） Pumping station must also be spaced along the pipeline to maintain pipeline pressure at the level required to overcome .
A、friction
B、leakage
C、changes in elevation
D、other pressure losses
我的答案：ACD 此题得分：2.5分
17.（2.5分） In selecting the station site, which should be considered?
A、Type of pump
B、Environmental protection
C、Safety considerations
D、Engineering design criteria
我的答案：BCD 此题得分：2.5分
18.（2.5分） Products shipped include .
A、several grades of gasoline
B、aviation gasoline
C、diesel
D、home heating oils
我的答案：ABCD 此题得分：2.5分
19.（2.5分） Equipment in an individual station varies in both size and type, depending on .
A、the volume of fluid being handled and its properties
B、the size of the pipeline system
C、the type of monitoring and control used
D、the remoteness of the station
我的答案：ABCD 此题得分：2.5分
20.（2.5分） In a pumping station, the main items are .
A、Pumps
B、drivers
C、meters
D、pipes
我的答案：AB 此题得分：2.5分
21.（2.5分） The characteristics of oil & gas pipeline systems include:
A、Lower transportation costs
B、Increase the ease of operation
C、Decrease evaporation loss
D、Decrease transportation time
我的答案：ABCD 此题得分：2.5分
22.（2.5分） adds energy to the flowing fluid to cause it to move through the pipeline.
A、Pumps
B、Compressors
C、Pigs
D、Meters
我的答案：AB 此题得分：2.5分
23.（2.5分） Volume that reciprocating compressor unit can compress under given conditions depends on:
A、size of cylinder
B、length of the piston stroke
C、clearance volume within the cylinder
D、temperature and pressure of gas flow
我的答案：ABC 此题得分：2.5分
24.（2.5分） The type of information gathered by smart pigs includes .
A、pipeline diameter
B、bends
C、temperature and pressure
D、corrosion
我的答案：ABCD 此题得分：2.5分
25.（2.5分） Pipeline pigging is done to .
A、periodically remove wax, dirt, and water from the pipeline
B、separate products to reduce the amount of interface between different types of crude oil or refined products.
C、control liquids in a pipeline
D、inspect pipelines for defects
我的答案：ABCD 此题得分：2.5分
判断题 (共15道题)
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26.（2.5分） Gathering lines are the first link in the transportation chain from producing well to consumer.
正确
错误
我的答案：错误 此题得分：2.5分
27.（2.5分） The originating station is usually most complex.
正确
错误
我的答案：正确 此题得分：2.5分
28.（2.5分） Pumps are required only at the beginning of the trunk line.
正确
错误
我的答案：错误 此题得分：2.5分
29.（2.5分） Crude trunk lines operate at the same pressure as field-gathering systems.
正确
错误
我的答案：错误 此题得分：2.5分
30.（2.5分） Crude trunk lines are made of steel.
正确
错误
我的答案：正确 此题得分：2.5分
31.（2.5分） In general, gas pipelines operate at the same pressures as crude lines.
正确
错误
我的答案：错误 此题得分：2.5分
32.（2.5分） Much of the line pipe used today is manufactured according to specifications of API.
正确
错误
我的答案：正确 此题得分：2.5分
33.（2.5分） Seamless steel pipe is made with a longitudinal weld by hot working lengths of steel to produce pipe of the desired size and properties.
正确
错误
我的答案：错误 此题得分：2.5分
34.（2.5分） Reciprocating compressors have more moving parts and lower mechanical efficiencies than centrifugal compressors.
正确
错误
我的答案：正确 此题得分：2.5分
35.（2.5分） The number of booster stations is constant in liquids pipeline systems.
正确
错误
我的答案：错误 此题得分：2.5分
36.（2.5分） When pumps are connected in parallel, the total flow volume is handled by each pump.
正确
错误
我的答案：错误 此题得分：2.5分
37.（2.5分） Liquids and gases are compressible.
正确
错误
我的答案：错误 此题得分：2.5分
38.（2.5分） The output from a centrifugal compressor is smoother than reciprocating compressors.
正确
错误
我的答案：正确 此题得分：2.5分
39.（2.5分） Interstage cooling between compression stages can be done by air cooling, by cooling with water, or by exchanging heat with inlet gas.
正确
错误
我的答案：正确 此题得分：2.5分
40.（2.5分） Barrel diameter is the same as pipeline.
正确
错误
我的答案：错误 此题得分：2.5分
无忧网不错，哈哈
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