The air supplied to a diesel engine is compressed to （）
(1) provide heat for the ignition of the fuel
(2) decrease injection delay
A.(1) only is correct
B.(2) only is correct
C.both (1) and (2) are correct
D.neither (1) or (2) are correct
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A.metal particles loosened by wear
B.air when no air cleaners are used
C.condensation of water vapors
D.breakdown of the lubricating oil by dilution
A.metering
B.timing
C.rate of injection
D.rate of distribution
A.dynamically balanced
B.statically balanced
C.counter balanced
D.resonantly balanced
When centrifuging heavy fuel oil, an important factor to consider is the （）
(1) flow rate
(2) viscosity of the fuel oil
A.(1) only is correct
B.(2) only is correct
C.both (1) and (2) are correct
D.neither (1) or (2) are correct
A.oil suction line restriction
B.correct amount of coolant
C.cavitation erosion in the water jackets
D.clogged sea suction strainer
最新試題
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
Proper filtering and straining of fuel oil is important because the （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
How many power strokes per crankshaft revolution are there in an eight cylinder, two stroke/cycle diesel engine?（）
The main purpose of the piston oil scraper rings is to （）.
Maximum horsepower of a diesel engine is attained （）.
A thrust bearing is used with a propulsion diesel engine to （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
An automated diesel engine should normally shut down due to （）