A.a spindle lubricator
B.an oil jet
C.internal splashing
D.drilled passages in the crankshaft
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A.the same, whether at sea, or during maneuvering
B.adjusted during each hour of operation while at constant RPM
C.higher at sea than while maneuvering
D.lower at sea than while maneuvering
A.improve fuel economy
B.increase the air charge velocity
C.reduce the risk of explosion
D.all of the above
A.Increased suction head pressure
B.Decreased feedwater temperature
C.Pump recirculating line being open too much
D.Excessive feedwater temperature
A.The safety valve escape piping should be disconnected from the valve body and a blank inserted
B.The boiler vent valves should be opened
C.All handhole/manhole covers should be tightened up as much as possible to preclude any leaks
D.All of the above
A.salinity is abnormally high
B.steam demand is too high
C.water level is abnormally low
D.feedwater flow is low
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For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
The main purpose of the piston oil scraper rings is to （）.
Routine monitoring of a diesel engine should include （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
The highest pressure in a diesel engine cylinder normally occurs （）.
Proper filtering and straining of fuel oil is important because the （）.
The function of diesel engine piston compression rings is to （）.
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 （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
In using reduction gears to obtain efficient propeller speeds, （）.