A.to increase
B.to speed up
C.to prevent
D.to reduce
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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
A.mixed with clean oil
B.purified
C.heated
D.strained
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In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
A thrust bearing is used with a propulsion diesel engine to （）.
Combustion knock occurring in a diesel engine can be caused by （）.
What is the function of the thrust bearing?（）
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
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?（）
In using reduction gears to obtain efficient propeller speeds, （）.
The main purpose of the piston oil scraper rings is to （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.