If a gasoline engine turns over freely but will not start，the cause is generally ______．A.A defective ignition systemB.Low lube oil levelC.Weak valve springsD.Too heavy a load
If a gasoline engine turns over freely but will not start，the cause is generally ______．
A.A defective ignition system
B.Low lube oil level
C.Weak valve springs
D.Too heavy a load
相关考题：
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单选题If a diesel engine turned over freely but failed to start, the cause could be （）Awater in the fuelBcold lube oilCexcessive starting air pressureDexcessive fuel pressure
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单选题In the navigation, cause the shafting over load most easily（）Astopping the main engine suddenlyBchanging the main engine running direction suddenlyCthe sailing from the shallow water area to the deep water areaDthe ship’s trim too much
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单选题A diesel engine fails to start because of water in the fuelIn order to start the engine, you should （）?Aturn engine with jacking gearBdrain filters and strainers and bleed off water at each injection pumpCuse ether to start the engine with blow-down valves openDblow through the cylinders and fuel lines with a drying agent
单选题Diesel engine electric starting motors generally require heavier duty motors and motors and operate at higher voltages than comparable starting motors for gasoline engines due to（）Ahigher speed requiredBflywheel-effectClower starting temperaturesDhigher compression pressures
单选题If a gasoline engine turns over freely but will not start，the cause is generally（）.Aa defective ignition systemBlow lube oil levelCweak valve springsDtoo heavy a load
单选题When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the（）Astarting air pressureBscavenge air pressureCover-speed tripDbanjo oiler line
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单选题“The engine not obtaining the sufficient speed for firing” means that （）.Athe start failsBthe fuel pumps will be put into operationCthe fuel valves are damagedDthe combustion process will take over
单选题If the engine does start on air, but combustion does not immediately begin, the cause may be （）.Afailure of the fuel pumpsBstarting air pressure too lowCstop valve in air line closedDthe turning gear still engaged
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