第一部分 习题
第一章 船舶主推进装置
第一节 船舶动力装置概述
000 1．Marine power plant is a plant that propels a_______vessel．
A．submarine B。suspending C．ship—borne D．waterborne
0002．_______is the prime important characteristic for a marine power plant．
A．Reliability B。Fuel economy C．Low maintenance D．Long life
0003．There are four main types of marine power plants：_______．
A．the diesel engine，the steam turbine，the gasoline engine and the marine nuclear plant
B．the diesel engine，the steam turbine，the gas turbine and the marine nuclear plant
C．the diesel engine，the internal combustion engine．the external combustion engine and
the marine nuclear plant
D．the diesel engine，the steam turbine，the exhaust turbine and the marine nuclear plant
0004。Gas turbines differ from steam turbines in that_______．
A．steam rather than gas is used to turn a shaft
B．vapor rather than gas is used to turn a shaft
：．the former uses gas tO turn a shaft D．the latter uses gas to turn a shaft
0005．The diesel engine is simila~tO the gasoline engine in that_______．
A。both of them are ignited by compressed air
B．both of them are the forms of external combustion engines
C．both of them have spark plugs
D．the power is developed by the piston in the cylinder
0006．The reason why more and more the large merchant vessels are being powered by medi—
um—speed diesel engines is_______．
A．they operate between l 50 and 450 r／rain
B．they are connected tO the propeller by gearing
C．their smaller size and weight
D．they can be connected directly tO the propeller without gearing
0007．_______are increasingly used as main engine on merchant vessels，because they have
a higher Hp／Weight rati0．
A．Slow speed diesel engines B．Medium speed diesel engines
C．Steam engines D．Gasoline engines
……P1
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