轮机英语-天津八套与海事局八套题库

天津八套与海事局八套题库（一）

1.The officer in charge of the engineering watch shall ensure that at all times bridge orders relating to changes in_____ of operation are immediately implemented.

A. fore and aft

B. ahead or astern

C. speed or direction

D. up or down

2.Small oil spills on deck can be prevented from contaminating any waters by_____ .

A. plugging all scuppers and drains

B.thoroughly draining all bunkering hoses

C.regularly emptying all drip pans

D.placing floating booms around the ship

3.The main purpose of warming up the main engine is_____ .

A. to reduce heat stress

B. to reduce low temperature corrosion

C. to improve firing and starting performance

D. for fuel saving

4.In order to reduce the chance of detentions ships should routinely verify the f ollowing except for_____ .

A.fan damper operation is smooth and operates through the full range of open to close.

B.fan damper locking pins are free to be removed without significant effort.

C.fan damper operating handles are free to move without significant effort.

D.fan damper are properly coated with white paint.

5.The purpose of the_____

in a vapour compression cycle is to accept the hot, high-pressure gas from the c ompressor and cool it to remove first the superheat and then the latent heat.

A.expansion valve

B.condenser

pressor

D.evaporator

6.The energy consumed by an AC motor, as strictly reactive power, is_____ .

ed to do mechanical work

B.lost in doing work to turn the motor itself

ed to establish the magnetic field of the motor

D.lost as heat generated by the windings.

7.A diesel engine will lose power if fuel injection occurs too early because the_ ____ .

A.fuel will not be properly atomized in the cylinder

B.maximum fuel expansion will occur on the compression stroke

C.ignition will be delayed due to low ignition temperature

D.fuel will ignite before top dead center

8.The designed_____

is 20 tons per day, but the fresh water generator can only distill 15 tons at present.

A.power

B.capacity

C.displacement

D.weight

9.The depth of the ship below the waterline measured vertically to the lowest par t of the hull is called_____ .

A.tonnage

B.trim

C.draft

D.lean

10.The hydraulic system of a deck winch has been drained, flushed, and refilled w ith hydraulic fluid. An erratic knocking noise from the hydraulic motor when the winch is started would indicate_____ .

A.clogged suction line fluid filters

B.air trapped in the system

C.the fluid level in the reservoir is too high

D.abrasive matter circulating in the oil

11.As a duty engineer, as soon as you hear the fire emergency signal, you should

ensure that the_____ .

A.ring buoys are thrown overboard

B.fire pumps are started

C.engines are stopped

D.life preservers have been issued to everyone

12.Which of the following problems could develop due to the accumulation of oil v apors in the crankcase of a diesel engine?

A.Reduced lubrication

B.Poor fuel economy

bustion knock

D.Crankcase explosion

13.All details of fuel bunkering, ballast handling, tank cleaning or slop disposal

must be entered in the_____ .

A.ballast log

B.muster log

C.engine room log

D.oil record book

14.The cetane rating of diesel fuel is an indication of the_____ .

A.rate of fuel consumption