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单选题
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
A
reduce the engine load
B
increase the cooling water flow
C
increase the lube oil pressure
D
adjust the fuel rack
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单选题One result of operating a diesel engine at light load with excessively low cooling water temperature is a/an （）A
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单选题How would the exhaust of a properly operating diesel engine appear?（）.A
Light blue hazeB
Light brown hazeC
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单选题One remedy for a high firing pressure, in addition to a high exhaust temperature in one cylinder of a diesel engine, is to （）A
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oil foaming will occurB
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