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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To determine if the lube oil filter elements need changing, （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
The main purpose of the piston oil scraper rings is to （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Diesel engine control can be obtained by the bridge （）.