You notice smoke coming from an open laundry room doorway．After activating the fire alarm，which of the following would you do FIRST（）.
1、White smoke exhausting from a diesel e
White smoke exhausting from a diesel engine can be caused by （）Alow combustion temperatureBa leaking fuel nozzle check valveClate fuel injectionDplugged oil-scraper ring hole
2、White smoke exhausting from a diesel e
White smoke exhausting from a diesel engine can result from （）Ahigh exhaust temperatureBhigh lube oil temperatureClow turbo-charger speedDlow cooling water temperature
3、You download a file from an FTP site o
You download a file from an FTP site on the Internet. What is the highest layer in the OSI model used in this FTP operation?（）A ApplicationB PresentationC SessionD TransportE InternetF Data LinkG Physical
4、If you observe smoke coming from the t
If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should（）Acheck the air filter for obstructionBcheck for an exhaust leakCcheck the exhaust temperatureDsecure the engine
5、White smoke exhausting from an operati
White smoke exhausting from an operating diesel engine may indicate （）.Aa cracked linerBburning lube oilCan overloaded engineDinsufficient combustion air
6、A smoking exhaust from an operating di
A smoking exhaust from an operating diesel engine could be caused by （）Alow sulfur content in the fuelBa loose injector inlet connectionClate fuel injectionDhigh injection pressure