A.by more than 5 percent
B.by less than 10 percent
C.to 95 percent
D.to less than 90 percent
您可能感興趣的試卷
你可能感興趣的試題
A.at any time
B.only after the engine room control station is switched to ‘bridge control’
C.whenever the secondary station is switched to ‘bridge control’
D.whenever the engine side control station is switched to ‘bridge control’
A.one half crankshaft speed in a two-stroke cycle diesel engine
B.crankshaft speed in a two-stroke cycle diesel engine
C.two times crankshaft speed in a two-stroke cycle diesel engine
D.one-fourth times crankshaft speed in a four-stroke cycle diesel engine
A.measure equipment
B.main electrical
C.my engine
D.main engine
A.a sea water chest
B.a change-over chest
C.a buffer tank
D.a three-way valve
A.open
B.open front type
C.live front type
D.dead front type
最新試題
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The cetane rating of diesel fuel is an indication of the （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Which of the following items don’t belong to dock repair works?（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）