A.heat conduction into the injected fuel oil
B.heat conduction into the water jacket wall
C.water circulation through passages in the holder
D.fuel oil circulation through passages in the holder
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A.slightly acidic condition
B.slightly alkaline condition
C.overtreatment of water
D.neutral condition of water
A.Combustion gases flow through the tubes
B.Flames impinge on the tubes
C.Combustion occurs in the tubes
D.Water flows through the tubes
A.slight acidity
B.slight alkalinity
C.excessive alkalinity
D.excessive acidity
A.cold corrosion of the nozzles
B.fuel viscosity for better atomization
C.carbon accumulation on the nozzles
D.fuel detonation in the cylinders
A.the size of the holes in the fuel nozzle
B.timing of the pump
C.supply pressure to the pump
D.shape of the combustion chamber
A.fuel injectors
B.exhaust valves
C.intake valves
D.all of the above
A two-stroke diesel engine exhaust temperature will be lower than a four-stroke diesel engine of the same displacement because the ()
(1) scavenging air is cooling the exhaust gases
(2) exhaust cycle time is longer
A.(1) only
B.(2) only
C.both (1) and (2)
D.neither (1) nor (2)
A.acidity has increased
B.viscosity has decreased
C.demulsibility has improved
D.foaming is guaranteed to occur
A.increase the fuel oil temperature
B.decrease the fuel oil temperature
C.decrease the fuel oil supply pressure
D.increase the air supply
With regards to a diesel engine crankcase explosion, the most violent is the()
(1) primary explosion
(2) secondary explosion
A.(1) only
B.(2) only
C.both (1) and (2)
D.neither (1) or (2)
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Proper filtering and straining of fuel oil is important because the ().
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?()
In using reduction gears to obtain efficient propeller speeds, ().
The main purpose of the piston oil scraper rings is to ().
Combustion knock occurring in a diesel engine can be caused by ().
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?()
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 piston ring face is in direct contact with the ().
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a ().
Maximum horsepower of a diesel engine is attained ().