A.low exhaust temperature
B.loss of engine power
C.burned intake valves
D.engine racing
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A.restricted turbocharger air intake
B.oil leak into the turbocharger
C.dribbling injector
D.low fuel viscosity
The exhaust valve opens before bottom dead center in a four stroke engine to()
Ⅰ.allow for blow down
Ⅱ.Reduce pumping losses
A.Ⅰ only
B.Ⅱ only
C.both Ⅰ and Ⅱ
D.neither Ⅰ nor Ⅱ
A.Constant volume
B.Constant pressure
C.Pulse pressure
D.Radial flow
A.Water discharging from the water outlet of the lube oil purifier
B.Fuel oil discharging from the water outlet of the lube oil purifier
C.Lube oil discharging from the water outlet of the lube oil purifier
D.A change in the lube oil viscosity
A.excessively late injection timing for each cylinder
B.incorrectly adjusted intake valve timing
C.incorrectly adjusted fuel injector
D.incorrectly adjusted intake valve clearance
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A purge recovery system is used in a centrifugal air conditioning or refrigeration system to ()
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
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is()
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated()
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?()
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?()
The ISPS Code consists of a mandatory section-Part A, which shows()
During the diesel engine running, the water level of F.W expansion tank should normally kept in the () level of glass tube.