一起答
单选

Due to the large amount of heat picked up by the air in boiler and engine rooms, it would be _____ to maintain ambient conditions within the comfort zone by air conditioning.

  • A.possible
  • B.necessary
  • C.practicable
  • D.impracticable
试题出自试卷《海船船员考试轮机部三管轮模拟题7(轮机英语)》
参考答案
查看试卷详情
相关试题
  1. Defective air cooler in a diesel engine will lead to .

    • A.smoky exhaust
    • B.starting failure
    • C.overload
    • D.over speed
  2. While a ship with twin screw is making a turn, in order to prevent overload, the duty engineer should _____.

    • A.reduce the fuel feeding of main engine of inner propeller
    • B.reduce the fuel feeding of main engine of outer propeller
    • C.firstly reduce the fuel of main engine of inner propeller, then reduce the fuel feeding of engine of outer propeller
    • D.reduce fuel feeding of two engines at the same time
  3. The oil mist detectors continuously_____ the crankcase atmosphere, via a pipe system, and move it past a sensitive and accurate opacity measuring track.

    • A.detract
    • B.extract
    • C.pump up
    • D.pump down
  4. A fire, occurring in the windings, of an overloaded electrical motor, is considered a _____.

    • A.class "A" fire
    • B.class "B" fire
    • C.class "C" fire
    • D.class "D" fire
  5. Due to the large amount of heat picked up by the air in boiler and engine rooms, it would be _____ to maintain ambient conditions within the comfort zone by air conditioning.

    • A.possible
    • B.necessary
    • C.practicable
    • D.impracticable
  6. Engage the flywheel with the _____.

    • A.turning gear
    • B.motor
    • C.driving gear
    • D.driven gear
  7. A lower thermostatic temperature setting will provide a desired degree of comfort in a room where _____.

    • A.low relative humidity is maintained
    • B.triple banded squirrel cage fans are used
    • C.air circulation is a maximum
    • D.high relative humidity is maintained
  8. The design of for a flash type evaporator is of critical importance because it must provide an optimum feedwater spray pattern that facilitates the flashing process, and it must also maintain a pressure differential between successive stages.

    • A.condenser
    • B.flashing device
    • C.lashing device
    • D.vacuum pump
  9. After stopping oily water separator, sea water should be permitted for ___ minutes, ____ should be closed after stopping pump to reduce oxidation corrosion of inner wall.

    • A.15 / inlet value
    • B.15 / inlet and outlet value
    • C.30 / inlet value
    • D.30 / inlet and outlet value
  10. While underway, which of the following would be the FIRST step in reversing a direct reversing large, low-speed, main propulsion, diesel engine?

    • A.Manually trip the over-speed device
    • B.Interrupt the fuel flow to the engine
    • C.Disengage the safety interlock
    • D.Slide the camshaft to the neutral position