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1、-轮机英语毕业补考复习大纲选择题1._is used for washing and drinking.A. The ballast systemB. The salt water systemC. The bilge systemD. The domestic system2. In general,_is suitable for delivering small quantities at high pressure.A. reciprocating pumpB. gear pumpC. centrifugal pumpD. vane pump3. The pumps employed
2、on board ship can be divided into two main categories i.e. _ pumps and centrifugal pumps. A. gear B. non-positive displacement C. positive displacement D. rotary4. The lube oil pump used in a diesel engine is a _.A. volute pump B. centrifugal pump C. diaphragm pump D. gear pump5. While flowing throu
3、gh the volute in a centrifugal pump, part of the _ energy of the liquid is converted to _ energy.A. kinetic/pressure B. kinetic/essentialC. pressure/kinetic D. pressure/height6. Which of the following pumps are self-priming, and can deal with liquid from a level below the pump . reciprocating; . rot
4、ary;. centrifugal.A. only B. and C. , and D. and 7. A positive displacement pump is that where the volume of the pump chamber is alternately increased to _ and then decreased to_.A. draw the liquid in/ force the liquid outB. force the liquid out/draw the liquid inC. suction/drawD. deliver/outlet8. H
5、ere some oil in the oily water separator, as a result of its lower _, will separate and riseinto the oil collection space. A. temperature B. viscosity C. density D. velocity9. In a plete oil/water separator, more oil will separate out onto the underside of these plates and travel outwards until it i
6、s free to rise into the oil collecting space. Whats the meaning of “itin the sentence above A. a separator B. oil C. water D. an oil collecting space10. _ are used to ensure that ships dont discharge oil when pumping out oily water from any oil contaminated space. -印刷边界，请勿越界-出卷人： 出卷日期： 教研室主任： 教务科长：
7、印刷份数： A. Boiler B. Incinerator C. Oily water separator D. Sewage treatment unit11. In an oily water separator the oil will travel _ to the oil collecting spaces. A. upwards B. downwards C. outwards D. forwards12. When started, a plete oily water separating unit is first filled _. The oily water mi*t
8、ure is then pumped through the inlet pipe into the coarse separating partment.A. with dirty water B. with clean waterC. by oily water D. by mi*ed water13. _ are used for cargo handling.A. CranesB. Mooring winchesC. WindlassesD. Foreman14. _ are used to handle anchors and chains.A. Cargo winchesB. Mo
9、oring winchesC. WindlassesD. Cargo hatches15. The drive motor will have a brake arranged to fail-safe, i. e. it will _ the load if power fails or machine is stopped.A. liftB. putC. takeD. hold16. _ are used for hauling in or letting out the wires which fasten the ship to the shore.A. Cargo winchesB.
10、 Mooring winchesC. WindlassesD. Cargo hatches17. Cargo handling unit is rated according to the _ to be lifted.A. cargo craneB. jibC. safe working loadD. oil pressure18. _ may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).A. A capstanB. A holdC. A warp e
11、ndD. A mooring drum19. In a pression refrigeration plant the refrigerant is under low pressure in the _ and under high pressure in the _.A pressor/condenser B condenser/evaporator C throttle valve/evaporator D evaporator/condenser 20. These include deck machinery such as mooring equipment, anchor ha
12、nding equipment, cranes and _.A. boilersB. bow thrustersC. stabilizersD. hatch covers21. In a general cargo crane, three principal movements are _; _; _.A. hoisting/luffing/slewingB. lifting/raising/loweringC. rotating/raising/handlingD. hosting/lowering/moving22. Hydraulic cranes must be properly w
13、armed-up before being operated because _.A. warm-up allows the hydraulic system to bee charged with oilB. warm-up allows the relief valves to be properly testedC. hydraulic strainers operate only during the warm-up periodD. hydraulic fluid must be at the proper viscosity23. _ is the production of pu
14、re water from sea water by evaporation and re-condensing. A Evaporation B Circulation C Condensation D Distillation24.When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water_.A to decrease scale formation B for better cooling effect C for more economic purpose D to raise vacuum 25. Water evaporates or steam condenses at the saturation temperature, which depends upon the pressure, the higher the pressure, _
