A.closing later
B.opening sooner
C.staying open for a shorter period of time
D.staying open for a longer period of time
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A.prevents spark generation
B.removes combustible gases
C.determines the level of combustible gases
D.provides inert gas generation in crankcase
A.free entry of air to the crankcase
B.water entering the crankcase while engine wash-downs are being performed
C.excessive oil leakage during periods of increased blow-by
D.sub-cooling internal components
A.open late and close early
B.open late and close late
C.fail to open when the engine is cold
D.fail to open at normal operating temperature
A.camshaft beatings
B.main bearings
C.piston crowns
D.cylinder walls
A.the highest point in the system
B.the lowest point in the system
C.near the floor
D.plate level or near the tank top level
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Routine monitoring of a diesel engine should include （）.
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 （）.
Maximum horsepower of a diesel engine is attained （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
Diesel engine control can be obtained by the bridge （）.
Lube oil cannot be efficiently filtered if its （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
In using reduction gears to obtain efficient propeller speeds, （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.