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
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?（）
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
Lube oil cannot be efficiently filtered if its （）.
Routine monitoring of a diesel engine should include （）.
An automated diesel engine should normally shut down due to （）
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
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 （）.
In using reduction gears to obtain efficient propeller speeds, （）.