A.on the power stroke
B.on the exhaust stroke
C.at the end of the power stroke
D.at the start of the intake stroke
您可能感兴趣的试卷
你可能感兴趣的试题
A.early fuel injection timing
B.leaking valves
C.a continuously open scavenge air port
D.low cooling water temperature
A.clogged air filter
B.compression stroke
C.burned exhaust valves
D.all of the above
A.intake stroke
B.compression stroke
C.power stroke
D.exhaust stroke
A.When heated, it will move proportional to the amount the metal has lengthened or expanded
B.The pointer associated with the pyrometer scale can be made to also measure engine RPM
C.It can be utilized in exhaust manifolds and heat exchangers interchangeably
D.It can indicate temperature at a distant point from the source heat
A.Low compression pressure and high exhaust temperature
B.Low firing pressure and high exhaust temperature
C.Low compression pressure and low exhaust temperature
D.Low firing pressure and low exhaust temperature
A.later and close sooner
B.sooner and close later
C.sooner and close sooner
D.later and close later
A.pyrostats and a voltmeter
B.a gas-filled bellows, a tube and a pressure gauge
C.thermocouples and a voltmeter
D.ammeters and thermocouples
A.clogged coolant passages
B.a leaking cylinder head gasket
C.low fuel oil pressure
D.worn or broken cylinder liner sealing rings
A.before TDC and close after BDC
B.after TDC and close after BDC
C.before TDC and close before BDC
D.after TDC and close before BDC
A.an air start cam
B.cylinder compression pressure
C.starting air pressure
D.valve springs
最新试题
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
Diesel engine air start system check valves are opened by （）
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
Cold weather starting of a diesel engine may be made easier by（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）