A.to protect
B.to guard
C.to maximize
D.to minimize
您可能感興趣的試卷
你可能感興趣的試題
A.will be speeded up
B.should be slowed down
C.must slow down
D.have to be slow down
A.the trunking should be opened up
B.should the trunking be opened up
C.the trunking should not be opened up
D.should the trunking not be opened up
A.cooling jacket
B.cylinder liner
C.piston crown
D.cylinder cover
A.the camshaft
B.the flange
C.the ridge
D.the bulge
A.charge air receiver
B.scavenging air belt
C.turbine
D.air cooler
最新試題
Maximum horsepower of a diesel engine is attained ().
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?()
The main purpose of the piston oil scraper rings is to ().
To determine if the lube oil filter elements need changing, ().
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?()
The highest pressure in a diesel engine cylinder normally occurs ().
Lube oil filters remove contaminants more efficiently if the oil being filtered is ().
The function of diesel engine piston compression rings is to ().
What is the function of the thrust bearing?()
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 ().