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单选题
The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures （） in much the same way as for the main engine.
A
to be kept
B
logged
C
changed
D
has remained
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late fuel injectionD
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check the cylinder exhausts for black smokeB
listen for combustion knock in that cylinderC
isolate each cylinder and inspect the injectorD
check the cylinder exhaust temperature frequently
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单选题If over a period of weeks the air-box pressure of a turbo-charged, diesel engine, operating at full load, appears to be dropping off, the cause can be （）.A
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单选题A diesel engine could fail to start because of （）A
incorrect injection timingB
low exhaust back pressureC
floating exhaust valvesD
excessive cranking speed
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单选题Operating a diesel engine under light loads and at low temperatures for an exhaust for an extended period can result in（）A
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high water jacket temperaturesC
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单选题How would the exhaust of a properly operating diesel engine appear?（）.A
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单选题Which of the following operating procedures should be carried out immediately after any diesel engine is started?（）A
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Check the sump oil levelC
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low firing pressure and normal exhaust temperaturesC
high firing pressure and low exhaust temperaturesD
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考题
单选题A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.A
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考题
单选题A four-stroke cycle, turbocharged, 1000 horsepower diesel engine has been operating under loadThe load suddenly increases, causing excessive black exhaust smoke, and a rapid rise in the lube oil temperatureIn response to this condition, you should:（）A
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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
考题
单选题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 longerA
(1) onlyB
(2) onlyC
both (1) and (2)D
neither (1) nor (2)
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