A.after TDC
B.before TDC
C.after BDC
D.before BDC
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A.a gravity tank
B.a sump
C.a vessel
D.a bottle
A.intercooler
B.open air
C.oil fired boiler
D.B and C
A.TDC
B.DTC
C.BDC
D.DBC
A.the cylinder liner
B.the cylinder cover
C.the cylinder jacket
D.the piston
A.exhaust valves
B.mechanical lubricators
C.cooling water pumps
D.fuel injection pumps
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Diesel engine control can be obtained by the bridge （）.
The function of diesel engine piston compression rings is to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Proper filtering and straining of fuel oil is important because the （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Lube oil cannot be efficiently filtered if its （）.
What is the function of the thrust bearing?（）
In a simple mechanical governor, the （）.
Routine monitoring of a diesel engine should include （）.