A.direct action of cam shaft
B.compressed air pressure
C.hydraulic “push rods”
D.direct action of the main piston moving down
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In a diesel engine, excessive cylinder liner wear will cause （）
(1) increased blow-by
(2) wear between the piston ring and groove
A.(1) only is correct
B.(2) only is correct
C.both (1) and (2) are correct
D.neither (1) or (2) axe correct
A.area times the stroke
B.area times the stroke, times the number of cylinders
C.volume times the stroke
D.volume times the stroke, times the number of cylinders
A.water-tube supercritical circulation
B.water-tube forced circulation
C.fire-tube controlled circulation
D.fire-tube express circulation
A.regulating the speed of the turbocharger
B.rotating the fuel injector pump plunger
C.regulating the speed of the fuel oil transfer pump
D.changing engine timing
A.clockwise, due to the bowl rotating clockwise
B.clockwise, due to the bowl rotating counterclockwise
C.counterclockwise, due to the bowl rotating clockwise
D.counterclockwise, due to the bowl rotating counterclockwise
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Proper filtering and straining of fuel oil is important because the （）.
To determine if the lube oil filter elements need changing, （）.
In using reduction gears to obtain efficient propeller speeds, （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Diesel engine control can be obtained by the bridge （）.
Routine monitoring of a diesel engine should include （）.