A.bottom-blow valve
B.skin valve
C.feed-check valve
D.feed-stop valve
您可能感興趣的試卷
你可能感興趣的試題
A.a system with a Hydraulic Power Supply (HPS) unit
B.a system with roller guides for exhaust valves
C.a system with an electronically controlled Alpha Lubricator
D.a system directly powered by electric motor
A.Lower fuel consumption
B.Better balanced cylinder power
C.A shorter overhaul period
D.Less smoke emission
A.too low
B.a little lower
C.a little higher
D.exactly the same
A.a little lower
B.a little higher
C.too low
D.exactly the same
A.control fuel injection time more precisely
B.control fuel injection rate more precisely
C.meet the environmental requirements
D.meet high engine speed requirements
最新試題
The cetane rating of diesel fuel is an indication of the （）
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（）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The shipboard oil pollution emergency plan will be invalid after （）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Cold weather starting of a diesel engine may be made easier by（）