A.the period of time during which no trouble occurs to the engine
B.no trouble will occur to the engine all its life
C.trouble may occur freely to the engine
D.no matter what you do to the engine, no trouble will occur during this period
您可能感興趣的試卷
你可能感興趣的試題
A.after the point is reached at which the failures begin to increase rapidly
B.before the point is reached at which the failures begin to increase rapidly
C.before the point is reached at which the failures begin to increase slowly
D.after the point is reached at which the failures begin to increase slowly
A.no equipment in contact with sea water
B.less equipment in contact with fresh water
C.more equipment in contact with sea water
D.less equipment in contact with sea water
A.the temperature
B.the rust
C.the pressure
D.the humidity
A.pumped speed；came out
B.pumping rate；overflowed
C.flowing rate；leaked out
D.flowed speed；spilled out
A.machined
B.bored
C.honed
D.drilled
最新試題
In using reduction gears to obtain efficient propeller speeds, （）.
Maximum horsepower of a diesel engine is attained （）.
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?（）
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
In a simple mechanical governor, the （）.
The function of diesel engine piston compression rings is to （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.