A.The safety valve escape piping should be disconnected from the valve body and a blank inserted
B.The boiler vent valves should be opened
C.All handhole/manhole covers should be tightened up as much as possible to preclude any leaks
D.All of the above
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A.salinity is abnormally high
B.steam demand is too high
C.water level is abnormally low
D.feedwater flow is low
A.internal crankshaft passages
B.immersion in oil
C.splash lubrication
D.injection lubrication
A.Increases the sludge forming tendency of lube oil
B.Prevents the accumulation of combustible gases
C.Improves lube oil cooling
D.Improves cold weather starting
A.closing later
B.opening sooner
C.staying open for a shorter period of time
D.staying open for a longer period of time
A.prevents spark generation
B.removes combustible gases
C.determines the level of combustible gases
D.provides inert gas generation in crankcase
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The function of diesel engine piston compression rings is to （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
Diesel engine control can be obtained by the bridge （）.
Lube oil cannot be efficiently filtered if its （）.
White smoke exhausting from an operating diesel engine may indicate （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.