During an engine room watch if immediate action is necessary to ensure safety of the ship its machinery and crew （）
1、（）, the engine must be stopped immedia
（）, the engine must be stopped immediately.AShould knocking occurBIf knocking occurCShould if knocking occursDIf occur knocking
2、If a fire ignites in the engine room a
If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST （）.Asecure the ventilationBfind a soda acid extinguisherCshut off the fuel oil supplyDsecure the generator
3、During the watch keeping at sea, at ap
During the watch keeping at sea, at appropriate intervals inspection should be made of （）, auxiliary machinery and steering gear spaces by the duty engineer.Athe main propulsion plantBlifesaving jacketsClifeboat engineDstate of emergency generator
4、If the main engine of an unattended en
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.Aat each control stationBin the chief engineer’s quartersCin the captains quartersDAll of the above are correct
5、If an auxiliary diesel engine frequent
If an auxiliary diesel engine frequently stalls, the trouble may be caused by （）Alow exhaust back pressureBair in the fuel systemCgasket blow-by or leakageDincorrect assembly of idler spring
6、When reentering an engine room that ha
When reentering an engine room that has been flooded with CO2, the investigating team should initially（）.Aleave the access door partially openBenter from the lowest levelCenter from the highest levelDattempt to operate machinery