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单选题
Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open, is to （）
A
test the starting system
B
remove condensation from the cylinders
C
check the compression
D
check for proper lube oil pressure
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单选题The main purpose of starting the diesel engine on air briefly is（）A
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单选题The main purpose of warming the parts of the main engine is （）A
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单选题Which of the following may lead to the engine NOT to start on air?（）A
starting air pressure too highB
correct timing of starting air valvesC
three of the six starting valves stuckD
the turning gear disengaged
考题
单选题Diesel engine cylinder head test cocks are used to（）A
check cylinder lubrication prior to starting engineB
connect exhaust gas analyzers to determine engine efficiencyC
pressure test cylinder heads to check for leaksD
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考题
单选题Before starting an engine by air, the engine must（）A
be turned by a turning gear for at least one minuteB
be turned by a turning gear for at least two minutesC
be turned at least one complete turnD
be turned at least two complete turns
考题
单选题During maneuvering operations for a direct reversing large, low-speed, main propulsion diesel engine, which of the following actions is used to stop the shaft from turning prior to reversing the engine rotation?（）A
Flywheel inertiaB
Admission of starting airC
The way of the vesselD
securing of fuel to the cylinders
考题
单选题After the engine is warned, we should（） the turning gear before starting up the engine.A
take inB
put inC
take outD
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考题
单选题Before starting the turning gear, （） should be worked by hand to minimize corrosive action on the liners.A
the indicatorsB
the starting valvesC
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the turning gear
考题
单选题Which of the following statements represents the reason for rolling over a diesel engine with the cylinder indicator cocks open prior?（）A
To test the starting systemB
To remove air bubbles from the jacket waterC
To ensure that the lube oil system delivers pressureD
To ensure foreign material (water etc) is not present in the cylinders
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考题
单选题During （）, the starting air valves should be closed to prevent the engine from turning.A
overhaulB
runningC
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考题
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Fuel oil strainersC
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考题
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The thermostatic water regulating valves should be manually openedC
The fuel filters should be changedD
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考题
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考题
单选题When an engine is starting and has got a sufficiently high speed, say about 20 rpm,（）A
the starting air supply is cut off and fuel is injected into the cylindersB
the fuel feeding is cut off and the turning gear is put inC
the starting air supply is cut off and turning gear is taken outD
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考题
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考题
单选题The diesel engine must be started before it can run by it self For this purpose （） has to be used.A
a starting systemB
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考题
单选题The purpose of the flywheel is to （）A
provide energy to operate the engine between power impulsesB
neutralize the primary inertia force of the crankshaftC
reduce the shock of starting loads on the main bearingsD
prevent the engine from operating at critical speed
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