A.in order that
B.because of
C.in order to
D.owing to
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A.should be correctly carried out
B.should correctly be taken place
C.should carried with care
D.must to carry out with great care
A.a shortened ignition delay period
B.a lean fuel/air mixture
C.excess fuel in the combustion chamber
D.rapid vaporization of injected fuel droplets
A.too low starting air pressure
B.main starting valve closed
C.neither A nor B
D.A and B
A.high compression pressure
B.low intake air temperature
C.low exhaust pressure
D.high scavenge air temperature
A.the stem and heads are made of different material
B.low-alloy steel is used throughout
C.a replaceable valve disk is welded to the head
D.the self-centering action comes from motion of the valve stem in the guide
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Diesel engine air start system check valves are opened by （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
If separating effect is not good, which measure should be taken （）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.