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单选题
Cooling the intake air supplied to a diesel engine will （）.
A
reduce mean effective pressure
B
decrease average compression pressure
C
decrease air charge density
D
increase power output
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单选题What is the effect of heated intake air on a diesel engine? （）A
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单选题Which of the following problems can cause an above normal air temperature to develop in the intake manifold of a turbocharged and after-cooled diesel engine?（）A
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greater overall efficiencyB
greater fuel economyC
lower horsepowerD
lower compression ratio
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