A.030 to 1
B.300 to 1
C.333 to 1
D.330 to 1
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A.air in the cooling system
B.an overhauled water pump
C.correct amount of coolant
D.no air in the cooling system
A.camshaft
B.reduction gears
C.rocker arm
D.connecting or piston rod
A.a worn water pump
B.not enough coolant
C.air in the cooling system
D.all of the above
A.flywheel
B.crankshaft
C.journal bearings
D.camshaft
A.45
B.60
C.90
D.100
最新試題
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Lube oil cannot be efficiently filtered if its （）.
Maximum horsepower of a diesel engine is attained （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
The main purpose of the piston oil scraper rings is to （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
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 （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
In using reduction gears to obtain efficient propeller speeds, （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.