A.inwards
B.outwards
C.downwards
D.upwards
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A.to increase
B.to speed up
C.to prevent
D.to reduce
A.taken away
B.engaged
C.connected
D.sealed off
A.overhaul
B.running
C.blowing down
D.All of the above are correct
A.reciprocating
B.rotating
C.running
D.removing
A.bedplates
B.columns
C.cylinder blocks
D.safety caps
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The function of diesel engine piston compression rings is to （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
In using reduction gears to obtain efficient propeller speeds, （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
Proper filtering and straining of fuel oil is important because the （）.
In a simple mechanical governor, the （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
A diesel engine piston ring face is in direct contact with the （）.
Combustion knock occurring in a diesel engine can be caused by （）.