If the engine does start on air, but combustion does not immediately begin, the cause may not be （）.

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• A diesel engine fails to start because of water in the fuelIn order to start the engine, you should （）?

  A . turn engine with jacking gear B . drain filters and strainers and bleed off water at each injection pump C . use ether to start the engine with blow-down valves open D . blow through the cylinders and fuel lines with a drying agent

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• If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine will（）

  A . backfire through the air intakes B . develop less power under load C . have high firing pressures D . lift its cylinder relief valve

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• If a scavenge fire starts, the engine must be put to “（）” and the fuel must be taken off the cylinders affected by the fire.

  A . stop engine B . finished with engine C . dead slow ahead D . dead slow aster

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• If a diesel engine fails to start，one of the likely causes is （）

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

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• If a four-stroke/cycle diesel engine is started by injecting air into the cylinder, the pistons receiving the charge of starting air must be（）

  A . on the power stroke B . on the exhaust stroke C . at the end of the power stroke D . at the start of the intake stroke

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• Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.

  A . open the bypass line B . cut in the lube oil cooler C . pressurize the lube oil system D . top off the expansion tank

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• 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（）

  A . starting air pressure B . scavenge air pressure C . over-speed trip D . banjo oiler line

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• The engine will fail to start unless （）.

  A . the pressure of the starting air is high enough B . there is enough air in the air reservoirs C . the air is supplied into the cylinders in the appropriate sequence D . all of the above

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• If a diesel engine rotates slowly when cranked, but does not fire, the（）

  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

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• If the engine does start on air, but combustion does not immediately begin, the cause may be （）.

  A . failure of the fuel pumps B . starting air pressure too low C . stop valve in air line closed D . the turning gear still engaged

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• If the engine of a survival craft does not start，check to see（）.

  A . that the fuel valve is open B . if the air supply system is open C . if the water sprinkler system is open D . if the limit switch is o

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• A diesel engine may be hard to start if the （）

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

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• Immediately after any diesel engine is started, the engineer should check the （）

  A . crankcase pressure B . lube oil pressure C . saltwater pressure D . exhaust temperature

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• After the engine is warned, we should（） the turning gear before starting up the engine.

  A . take in B . put in C . take out D . put u

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• （） in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.

  A . Because B . Owing to C . For D . No matter

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• If the engine can be started and maneuvered on high viscosity fuel, the （）of the fuel reaching the injectors should be raised to such a point that the viscosity is less than the required value, ie27c St.

  A . pressure B . temperature C . viscosity D . density

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• Before starting an engine by air, the engine must（）

  A . be turned by a turning gear for at least one minute B . be turned by a turning gear for at least two minutes C . be turned at least one complete turn D . be turned at least two complete tur

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• Before starting the engine the air bottle should be （）.

  A . pumped up B . loaded C . discharged D . opened

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• If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.

  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

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• When does the warranty of the XIV Storage System start? （）

  A . when the order is placed B . when the product is shipped C . when the product is delivered D . when the product is installed

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• During the inspection, the starting air valves should be closed （） the engine from turning.

  A . to increase B . to speed up C . to prevent D . to reduce

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• The main purpose of starting the diesel engine on air briefly is（）

  A . to inspect if the cylinder has the water leakage B . to expel out the residual water/gas/oil from the cylinder C . to check if fuel supply is normal D . A and B

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• The engine is started with （） supplied from air receivers.

  A . pressure oil B . pressure water C . compressed air D . cooling water

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• If the engine does start on air, but combustion does not immediately begin, the cause may not be（）

  A．low compression B．failure of the fuel pump to discharge fuel C．incorrect timing of fuel pump D．turning gear being still o

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