A.to protect
B.to guard
C.to maximize
D.to minimize
您可能感兴趣的试卷
你可能感兴趣的试题
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
A.thrust block
B.sounding rod
C.connecting rod
D.push rod
A.a cooling system
B.a lubrication oil system
C.an electric system
D.an injection system
A.much
B.more
C.most
D.less
A.lower than;can lubricate
B.lower than;can cool
C.higher than;can enter
D.higher than ;cannot enter
A.the cylinder cover
B.the piston rings
C.the piston crown
D.the piston skirt
![](https://static.ppkao.com/ppmg/img/appqrcode.png)
最新试题
In a simple mechanical governor, the ().
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to ().
A diesel engine piston ring face is in direct contact with the ().
Maximum horsepower of a diesel engine is attained ().
Proper filtering and straining of fuel oil is important because the ().
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 ().
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm ().
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?()
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?()