Page 27 - Apprentice Manual_Neat
P. 27

51.    In a gas engine, high exhaust temperature can be caused by


                   a.     Cylinder misfire
                   b.     Low boost
                   c.     Under-speed
                   d.     Light load


            52.    Which tool is used to check ignition timing?

                   a.     Feeler gauge
                   b.     Voltmeter
                   c.     Timing meter
                   d.     Timing light

            53.    The purpose of an aftercooler or intercooler in a diesel engine is to


                   a.     Reduce inlet air temperature
                   b.     Reduce exhaust temperature
                   c.     Heat cooling system up faster
                   d.     Cool the fuel


            54.    The temperature of lube oil in a diesel engine must be controlled because?

                   a.     Temperature is not important, only pressured is
                   b.     The higher the temperature of oil, the lower the viscosity to a point
                   c.     Oil oxidizes and becomes carbonaceous at a temperature over 250 degrees F.
                   d.     B and C of the above











































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