单选题To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.Areduce the engine driven fuel pump outlet pressureBretard the fuel injector timing to reduce powerCincrease the fuel rack settingDreduce the load on the engine
单选题
To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.
A
reduce the engine driven fuel pump outlet pressure
B
retard the fuel injector timing to reduce power
C
increase the fuel rack setting
D
reduce the load on the engine
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