A.flywheel
B.crankshaft
C.journal bearings
D.camshaft
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A.45
B.60
C.90
D.100
A.inside micrometer
B.feeler gauge
C.adjustable trammel
D.sighting device
A.starting air and fuel pumps
B.piston cooling pumps
C.exhaust 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) MEP is lower and the scavenging air is cooling the exhaust gases
(2) valve overlap in a four-stroke
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.water
B.babbitt
C.iron or steel
D.acids
最新試題
To determine if the lube oil filter elements need changing, （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
White smoke exhausting from an operating diesel engine may indicate （）.
Routine monitoring of a diesel engine should include （）.
The main purpose of the piston oil scraper rings is to （）.
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?（）
A diesel engine piston ring face is in direct contact with the （）.
Lube oil cannot be efficiently filtered if its （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.