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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 正确答案： 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 正确答案： 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 正确答案： 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 正确答案： 5.（2.5分） In a centrifugal unit, rotates. A、diffuser B、housing C、impeller D、rod 正确答案： 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. 正确答案： 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 正确答案： 8.（2.5分） In centrifugal compressors, energy is added to the gas by impeller . A、confining B、rotating C、compressing D、burning 正确答案： 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 正确答案： 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 正确答案： 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 正确答案： 12.（2.5分） Pipelines are often pigged first . A、during construction B、during ordinal operation C、during testing following construction D、after connection 正确答案： 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 正确答案： 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 正确答案： 15.（2.5分） This network of crude trunk lines comprises a wide variety of pipe . A、locations B、sizes C、capacities D、pressures 正确答案： 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 正确答案： 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 正确答案： 18.（2.5分） Products shipped include . A、several grades of gasoline B、aviation gasoline C、diesel D、home heating oils 正确答案： 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 正确答案： 20.（2.5分） In a pumping station, the main items are . A、Pumps B、drivers C、meters D、pipes 正确答案： 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 正确答案： 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 正确答案： 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 正确答案： 24.（2.5分） The type of information gathered by smart pigs includes . A、pipeline diameter B、bends C、temperature and pressure D、corrosion 正确答案： 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 正确答案： 26.（2.5分） Gathering lines are the first link in the transportation chain from producing well to consumer. 正确 错误 正确答案： 27.（2.5分） The originating station is usually most complex. 正确 错误 正确答案： 28.（2.5分） Pumps are required only at the beginning of the trunk line. 正确 错误 正确答案： 29.（2.5分） Crude trunk lines operate at the same pressure as field-gathering systems. 正确 错误 正确答案： 30.（2.5分） Crude trunk lines are made of steel. 正确 错误 正确答案： 31.（2.5分） In general, gas pipelines operate at the same pressures as crude lines. 正确 错误 正确答案： 32.（2.5分） Much of the line pipe used today is manufactured according to specifications of API. 正确 错误 正确答案： 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 正确答案： 34.（2.5分） Reciprocating compressors have more moving parts and lower mechanical efficiencies than centrifugal compressors. 正确 错误 正确答案： 35.（2.5分） The number of booster stations is constant in liquids pipeline systems. 正确 错误 正确答案： 36.（2.5分） When pumps are connected in parallel, the total flow volume is handled by each pump. 正确 错误 正确答案： 37.（2.5分） Liquids and gases are compressible. 正确 错误 正确答案： 38.（2.5分） The output from a centrifugal compressor is smoother than reciprocating compressors. 正确 错误 正确答案： 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 正确答案： 40.（2.5分） Barrel diameter is the same as pipeline. 正确 错误 正确答案： (责任编辑：admin) |
