单项选择题
When occurring a fire in the scavenge air box, the following measures should be taken except for（）
A.reducing speed to SLOW and asking bridge for permission to stop
B.stopping the fuel oil supply
C.switching-on the auxiliary blowers
D.putting the scavenge air box fire extinguishing equipment into function
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相关考题
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单项选择题
On what do you depend having the air cooler of main engine chemically washed?（）
A.increased air pressure differenced before and aft air cooler
B.reduced exhaust temperature in all cylinders
C.reduced temperature difference between water inlet and outlet
D.both A and C -
单项选择题
In a four stroke engine, which process lasts the longest period?（）
A.exhaust and suction process
B.suction and compression process
C.combustion and exhaust process
D.working and exhaust process -
单项选择题
In the two stroke diesel engine, it is designed so that the oil impingement is timed to proceed only on the piston ring belt during（）
A.compression stroke
B.suction stroke
C.expansion stroke
D.exhaust stroke
