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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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In an operating diesel engine, which of the following condition is an indication of a leaking air starting valve?（）
A . noise coming from that air starting valve
B . continuous operation of the starting air compressor
C . zero air pressure in the air starting system
D . overheated starting air pipe to the cylinder head
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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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Failure to open the diesel engine test cocks after a long period of shutdown, prior to starting may result in （）
A . an air bound fuel system
B . damage to cylinder heads and pistons
C . excessive fuel injection
D . excessive air valve lift
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A diesel engine may fail to start due to （）
A . low air charge temperature
B . high cranking speed
C . excessive fuel dilution of lube oil
D . high compression 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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A two-stroke/cycle diesel engine requires less starting air than a four-stroke/cycle diesel engine, of equal displacement, because the two-stroke/cycle diesel engine（）
A . has little or no internal friction
B . has a lower effective compression ratio
C . operates with scavenge air under a positive pressure
D . operates without energy absorbing intake and exhaust 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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Before starting a reciprocating, steam-driven pump that has been idle for a period of time, you should （）.
A . open the steam line mot valve
B . drain the steam cylinder
C . close the steam cylinder drains
D . open the liquid cylinder drai
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When starting air is admitted, a diesel engine turns over very slowly without firingThe cause may be （）
A . an obstruction in an cylinder
B . water accumulation in some engine cylinders
C . low starting air pressure
D . low scavenge air pressure
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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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A diesel engine cranks properly during starting but immediately stallsWhich of the following systems is most likely at fault?（）
A . Hydraulic starting
B . Electric starting
C . Ignition
D . Fuel
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Which of the listed items should be secured before performing any maintenance on a solenoid operated air start valve?（）
A . Electric power and starting air
B . Lube oil standby pump and control air
C . Hydraulic switch and engage jacking gear
D . Motor drain and pneumatic control system power
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Cold weather starting of a diesel engine may be made easier by（）
A . decreasing the compression ratio
B . using a special fuel having a high ignition temperature
C . increasing the starting air supply
D . heating the jacket water
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The following preparations are essential for any （） of marine diesel engine before it may be started.
A . doing
B . make
C . turn
D . operating
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In the starting process of a diesel engine, the main object is to attain the compression conditions sufficient to （）
A . turn the flywheel
B . reduce friction
C . overcome inertia
D . ignite the fuel
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Diesel engine starting difficulties due to cold intake air temperatures, can be overcome by using a/an（）
A . increase in starting air pressure
B . increase in lube oil viscosity
C . compression expansion device
D . jacket water heater
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The diesel engine must be started before it can run by it self For this purpose （） has to be used.
A . a starting system
B . the starting air
C . a starting operation
D . A, B and C
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With respect to diesel fuel, the ease with which a cold engine will start is dependent upon the（）
A . ignition quality of the fuel
B . high heating value of the fuel
C . amount of carbon residue after combustion
D . internal flow resistance in the injector
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Before you start an engine in a compartment，it’s MOST important to（）.
A . check the flame arrester
B . check the fuel tank
C . check the battery
D . ventilate the bilge
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Which of the following should always be checked prior to starting a diesel engine?（）
A . Air filters
B . Fuel oil strainers
C . Crank case oil level
D . Pyrometer reading
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Before starting a production run, it's not necessary to perform a trial run.
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In the Elizabethan Age, a yellow flag would be raised for a tragedy in the theatre before the performance started.
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Before being shut down, a diesel engine should idle a few minutes in order to ＿.
A.prevent governor surging at shutdown
B.make sure the fuel nozzles are flushed clean
C.prevent pressure buildup in the fuel lines
D.prevent damage from localized overheating
