If a diesel engine were running at 20% overload with a smoky exhaust, you should_____.

A . must be centrifuged B . must by filtered C . must be changed D . is holding finely dispersed carbon in suspensio

A . decrease until the engine speed increases B . increase as the load increases C . decrease as the load D . increases remain unchanged

A . place standby cooler in operation B . reduce engine load C . check thermostatic valve D . clean sea water strainer

A . a glazed surface on the spring B . nicks in the protective coating C . a build up of sludge deposits D . cracks in the surface of the spring

A . low compression temperature B . low ambient air pressure C . high lube oil pump pressure D . high fuel oil booster pump pressure

A . inspection covers should not be opened until the engine has cooled B . ventilation system should be continued in operation for one hour for cooling C . scavenge pump should be immediately secured to prevent loss of lube oil D . explosion covers should be opened slightly to provide extra ventilatio

A . a low level in the engine expansion tank B . excessively high coolant pressure C . improper temperatures D . malfunctioning of the jacket water heater

A . too light of a load B . injection timing is too early C . overloading of the engine D . too low of a compression ratio

A . fuel will not be properly atomized in the cylinder B . ignition will be delayed due to low ignition temperature C . maximum fuel expansion will occur on the compression stroke D . fuel will ignite before top dead center

A . fuel control rack had admitted excessive fuel B . engine speed does not match the fuel rack setting C . engine has failed to reach its firing speed D . starter pinion and ring gear contact is not correct

A . discharge a CO extinguisher in the air inlet B . pull off the distributor cap C . secure the jacket water D . secure the starting air supply valve

A . a cracked cylinder head B . a leaky cylinder head gasket C . a cracked cylinder liner D . any of the above

A . speed will drop drastically with any increase in load B . will stop due to zero fuel supply C . will stall upon application of load D . speed will remain fairly constant despite load change

A . air intake is restricted B . engine is cranked too fast C . vibration dampener is faulty D . exhaust back pressure is low

A . excessively late injection timing for each cylinder B . incorrectly adjusted intake valve timing C . incorrectly adjusted fuel injector D . incorrectly adjusted intake valve clearance

A . Fuel B . Lubricating C . Cooling D . Ignitio

A . 525 RPM B . 775 RPM C . 1550 RPM D . 1800 RPM

A . immediately open all crankcase relief ports B . increase crankcase exhauster speed to draw cool air into the engine C . allow the engine to cool naturally D . increase crank case scavenge air to remove unburned gase

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 hole

A . excessive compression pressure B . air in the fuel lines C . high fuel pressure D . excessive load

A . liquid in the cylinder B . low compression in the cylinder C . high exhaust temperature D . poor fuel penetratio

A . a broken shaft on the freshwater pump B . an excessive accumulation of scale exchanger C . an incorrect thermostatic element operating range D . lube oil in the cooling water

A . fuel droplets will burn as they leave the fuel injector B . fuel will not be properly atomized in the cylinder C . maximum expansion of the burned fuel cannot take place in the cylinder D . compression pressure will be too low to cause fuel ignitio

A . compression pressures are below normal B . lube oil is diluted with fuel oil C . cranking speed is too low D . exhaust system is partially restricted