《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
C． Either/or 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
C． Forged steel D． Aluminum √
15. _____ should not undertake any task which will interfere with the supervision duties
relating to the main machinery and associated equipment. A． The watch keeping personnel √ B． The chief engineer
C． The person on a bunker barge D． Any of the above
16. _____ the cylinder will contain a great weight of air and will be capable of burning
a great quantity of fuel.
A． At the beginning of the compression stroke √ B． At the beginning of the suction stroke C． At the end of the working stroke D． At the end of the exhaust stroke
17. _____ the supercharge pressure is, _____ power an engine develops.
A． The higher/the more √ B． Higher/more C． Higher/little D． The higher/the less
18. _____ is not properly set thus causing either advanced or retarded firing.
A． A piston
B． A fuel injection pump √ C． A feed water pump D． A lube oil pump
19. _____ rods are not in proper condition so that too much fuel is supplied to the
corresponding cylinder. A． Piston B． Sounding C． Regulating √ D． Connecting
20. _____ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuring
scale, that makes 150 tons. A． The piston rod B． The push rod C． The sounding rod √ D． The connecting rod
21. _____ allows for expansion and water make up in the water cooling system.
A． A top tank B． A head tank √
C． A head valve D． A drain tank
22. _____ at the end of the distribution pipe ensures that adequate pressure is maintained
by the pump. A． A relief valve B． An alarm √ C． A pressure gauge D． A non-maim valve
23. _____ is used for washing and drinking.
A． The ballast system B． The salt water system C． The bilge system D． The domestic system √
24. _____ provide the water to the pistons.
A． Pneumatic pipes B． Hydraulic pipes C． Telescopic pipes √ D． Operating gas pipes
25. _____ are fitted in the exhaust system and facilitate charge removal and scavenging in
each cylinder. A． Diffusers √ B． Compressors C． Steam boilers D． Soot blowers
26. _____ are formed by abrasive particles entering the bearing and scoring the shaft.
A． Grooves √ B． Recesses C． Ridges D． Nips
27. _____ are mounted on and bolted to the bed-plate cross girders.
A． The crankshaft B． The crankcase C． The guide-ways D． The frames √
28. _____ is a precaution which contributes to avoiding trouble under normal operating
conditions.
A． Constant inspection √ B． Keeping constant load