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单选题
Diesel engine exhaust gas temperatures can be used to determine individual cylinder （）.
A
performance
B
horsepower output
C
fuel consumption
D
scavenge effect
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单选题Diesel engine cylinder head test cocks are used to（）A
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单选题Diesel engine exhaust noise can be reduced in an exhaust muffler by （）A
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单选题Diesel engine exhaust temperatures may be used to indicate （）.A
leaking exhaust valvesB
an overloaded cylinderC
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单选题The exhaust system of a diesel engine is usually designed to remove exhaust gases and to （）A
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单选题High exhaust temperatures from all of cylinder of a turbocharged, four-stroke/cycle diesel engine can be caused by an（）A
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inadequate fuel supplyC
overload on one cylinderD
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high water jacket temperaturesC
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low voltage tripB
reverse power tripC
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low firing pressure and low exhaust temperaturesB
low firing pressure and normal exhaust temperaturesC
high firing pressure and low exhaust temperaturesD
high firing pressure and high exhaust temperatures
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单选题Diesel engine cylinder head test cocks are used to （）A
check cylinder lubricationB
connect the pressure indicator pressureC
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单选题The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.A
large conical springsB
compressed air pressureC
hydraulic pressureD
exhaust gas pressure
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white smoke in the exhaustB
high exhaust gas pyrometer readingsC
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单选题“This increase in charge air density is accomplished on most modern diesel engine types by use of exhaust gas turbo-charging, in which a turbine wheel driven by exhaust from the engine is rigidly coupled to a centrifugal type air compressor” According to this sentence, we can know that increases density（）, drives the compressor directly（）A
a modern diesel engine；a turbine wheelB
a modem diesel engine；exhaust gasesC
a compressor；an exhaust gas turbochargerD
a compressor；a turbine wheel
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