To successfully reduce an excessively high diesel engine exhaust gas temperature, you should _____.

A:reduce the engine driven fuel pump outlet pressure B:retard the fuel injector timing to reduce power C:increase the fuel rack setting D:reduce the load on the engine

A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST _____.

A:reduce the engine load B:increase the cooling water flow C:increase the lube oil pressure D:adjust the fuel rack

Excessively warm water leaving condenser may be caused by .

A:fouled tubes in shell and tube condenser B:too little or too warm condenser water C:air or non-condensable gas in system D:overcharge of refrigerant

A reciprocating air compressor is running roughly and vibrating excessively, indicating that the _____.

A:compressor is overloaded B:motor is overloaded C:foundation bolts are loose D:belts are too tight

Excessively low air pressure occurring in the intercooler of a reciprocating air compressor is caused by_____.

A:leaky discharge valves on the LP cylinder B:leaky discharge valves on the HP cylinder C:insufficient intercooler cooling D:low ambient air pressure

If a main propulsion diesel engine hunts excessively at idle speed, you should ______.

A:adjusts the idle speed control B:drain and flushes the governor and replace the oil C:adjusts the compensating needle valve D:drain and flushes the governor and replace the oil

One result of operating a diesel engine at light load with excessively low cooling water temperature is a/an .

A:decrease in ignition lag B:increase in fuel economy C:reduction in lube oil viscosity D:increase in cylinder misfiring

If a diesel engine is smoking excessively under load, the cause could be ________.

A:low exhaust back pressure B:early fuel injection in one of the cylinders C:compression pressure in one of the cylinders D:plugged injector holes

Oil oxidation, as a result of excessively high lube oil temperature, is harmful to a diesel engine because ____________.

A:oil foaming will occur B:large quantities of oil are consumed C:lube oil viscosity is always decreased D:corrosive by-products are usually formed

Excessively worn, or polished ends on a diesel engine valve spring, indicate______.

A:burned exhaust valves B:excessive spring compression C:spring surge D:worn valve seats