《轮机英语》试题(二三管轮)含答案

《轮机英语》考试复习题

(二、三管轮)

第一章船舶动力装置

1.“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?”

asked the oil barge owner.

A． by using of fresh water

B． with compressed air √

C． by using of sea water

D． with chemical compound

2.“Stand by an engine” means _____.

A．“prepare to stop the engine”

B．“assemble an engine on its bedplate”

C．“make an engine ready for starting”√

D．“dismantle an engine”

3. A _____ is the foundation of the engine, without the support of which the shaft alignment

in particular, and engine structure as a whole, would inevitably be lost.

A． Frame

B． Bedplate √

C． Cylinder

D． Liner

4._____ are commonly used in mechanical-hydraulic governor to sense engine speeds.

A． Bulbs

B． Bulks

C． Flyweights √

D． Flywheels

5._____ are generally formed in the frame of the both in-line and Vee engines to give

maintenance access to the crankshaft main and connecting rod large end bearing.

A． Doors √

B． Aspirate gauzer

C． Coupling

D． Blind

6._____ device is provided to prevent starting air from being admitted to the cylinder

before the reversing is completed.

A． An automatic √

B． A transmission

C． A self-regulating

D． An interlocking

7._____ fuel oils _____ lubricating oils require treatment before passing to the engine.

A． Both/and √

B． Neither/nor

D． Both/or

8._____ is sometimes used for piston cooling since leaks into the crankcase would not cause

problems.

A． Diesel oil

B． Hydraulic oil

C． Lube oil √

D． Mineral oil

9._____ is the removal of exhaust gases by blowing in fresh air.

A． Gas exchange

B． Charging

C． Scavenging √

D． Supercharging

10._____ is used for cylinder and cylinder head, the salt water is used for cooling the

lubricating oil, the fresh water in the coolers and the charging air in the air cooler.

A． The fuel oil

B． The lube oil

C． The sea water

D． The fresh water √

11._____ may be the first possible cause which makes the engine to lose power or slow down

when it is running.

A． Hot bearing √

B． Starting valves

C． Unequal distribution of load

D． Excessive crankshaft clearance

12._____ of an engine crankshaft can be detected by measuring deflections of crank webs

for each unit of the engine.

A． Misalignment √

B． Length

C． Strength

D． Stresses

13._____ of the A-frames there is a strong cast iron frame called the scavenging air box.

A． At the top √

B． At the bottom

C． In the top

D． In the bottom

14._____ pistons have low inertia and high coefficient of thermal expansion.

A． Cast iron

B． Cast steel