单项选择题X 纠错
A.Decrease the air density
B.Increase the exhaust temperature
C.Decrease the lube oil temperature
D.Increase the air density
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单项选择题
A.Clogged oil pump suction screens
B.Increased oil operating temperatures
C.Sticking piston rings
D.All of the above
单项选择题
A.improper fuel rack positing
B.lengthy exhaust valve duration
C.extend operation at light load
D.excessively early injection timing
单项选择题
A.crankcase
B.cylinder head
C.valve cover
D.engine frame
单项选择题
A.Impeller
B.Compressor
C.After-cooler
D.Exhaust differ
单项选择题
A.camshaft seizure
B.lube oil pump failure
C.lube oil cooler failure
D.lube oil pump overflow
单项选择题
A.Improper lubrication
B.Air in the fuel system
C.Coated fuel lines
D.Excessive vibration
单项选择题
A.Excessive valve train lubrication
B.Leaking standby oil cooler core
C.Excessive lube oil pressure
D.Excessive lube oil in the system
单项选择题
A.improper adjustment
B.contaminated fuel
C.kinked fuel lines
D.excessive engine vibration
单项选择题
A.check cylinder lubrication prior to starting engine
B.connect exhaust gas analyzers to determine engine efficiency
C.pressure test cylinder heads to check for leaks
D.remove moisture accumulations from cylinder prior to starting
单项选择题
A.constantly decreasing as engine load increase
B.constantly increasing as the amount of supercharging increases
C.approximately equal to exhaust manifold pressure at all times
D.approximately equal to atmospheric pressure at all times