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单选题
The auxiliary engine and a cgenerator can be connected with ().
A
cam
B
crosshead
C
bulge
D
coupling
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there is too much lube oil in the cylindersD
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单选题If the jacket water temperature in an auxiliary diesel engine cooling system is lower than normal, the probable cause is ()A
air binding of the engine cooling systemB
a cracked water cooled exhaust manifoldC
blockage in the heat exchangerD
faulty operation of the thermostat
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单选题Fuel oil contamination of an auxiliary diesel engine lube oil can result in()A
an increased flash pointB
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an increased viscosityD
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单选题In the event of failure of an auxiliary such as a lubricating pump, the standby pump is started and put on the line automatically“the line” in this sentence refers to()A
fuel manifoldB
lubricating pipe lineC
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单选题High exhaust temperature and black smoke exhausting from an auxiliary diesel engine can be caused by ().A
engine overloadB
low combustion temperatureC
plugged fuel nozzle holesD
excessive compression pressure
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单选题Electrically operated safety devices on auxiliary diesel engines function to stop the engine by ().A
increasing the volume of intake airB
shutting off the fuel supplyC
increasing the engine back pressureD
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单选题The purpose of the flywheel of a diesel engine is to ().A
counterbalance the crank throws on the crankshaftB
keep the engine running smoothly between power strokeC
provide a belt-driving surface for the operation of auxiliary machineryD
prevent the engine from overspeeding
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单选题The booster pump, which supplies diesel oil to() , should have a possibility of being powered by compressed air or by emergency power.A
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the auxiliary enginesC
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单选题In an auxiliary diesel engine, the reason for knurling the piston skirt is to()A
improve skirt lubricationB
allow for expansionC
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单选题If an auxiliary diesel engine frequently stalls, the trouble may be caused by ()A
low exhaust back pressureB
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The exhaust will contain black smokeC
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单选题If an auxiliary diesel engine temperature is higher than normal ,but the thermostat is determined not to be defective you would suspect a /an ()A
cavitation erosion in the water jacketsB
excess corrosion inhibitor in the coolantC
dirty jacket water coolerD
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单选题In using reduction gears to obtain efficient propeller speeds, ().A
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单选题If you observe smoke coming from the turbocharger of an auxiliary diesel engine, you should()A
check the air filter for obstructionB
check for an exhaust leakC
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单选题An electrically driven automatically operating auxiliary blower is provided for slow speed and () of a low speed diesel engine.A
manoeuvring operationsB
bad combustionC
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单选题About the jacket water, that of the auxiliary engines usually() is circulated by pumps, and the main engine usually ()A
an engine-driven;as wellB
an engine-driven;has an independent pumpC
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