A.rise quickly
B.rise slowly
C.drop quickly
D.drop slowly
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Continuous surging of turbocharger can be caused by（）
①crash stop of engine
②increased back pressure after T-Ch
③fouled or damaged turbine nozzle ring
A.all are correct
B.②and③are correct
C.none of the above is correct
D.①only is correct
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
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
A.exhaust and suction process
B.suction and compression process
C.combustion and exhaust process
D.working and exhaust process
A.compression stroke
B.suction stroke
C.expansion stroke
D.exhaust stroke
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