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If the speed of a turbocharged diesel engine is maintained constant the turbocharger speed will ()
A . decrease until the engine speed increases
B . increase as the load increases
C . decrease as the load
D . increases remain unchanged
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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 the turbocharger failed on an auxiliary diesel engine, which of the following conditions would probably occur?()
A . Full power cannot be developed
B . The exhaust will contain black smoke
C . Complete combustion will be impossible
D . All of the above
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The intake ports of a two-strike/cycle diesel engine are opened and closed by the action of the ()
A . camshaft
B . piston movement
C . exhaust valves
D . vertical drive
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If in any doubt as to the pilot’s actions or intentions,the officer in charge of the navigational watch shall().
A . notify the master immediately
B . take whatever action is necessary before the master arrives
C . take necessary actions at his/her discretion
D . seek clarification from the pilot
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An action for indemnity against a third person may()after the expiration of the year if brought within the time allowed by the law of the court seized of the case.
A . be carried out
B . encountered
C . be met with
D . be bringing
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During an engine room watch if immediate action is necessary to ensure safety of the ship its machinery and crew ()
A . the chief engineer must be informed at first
B . the captain must be informed at first
C . it must be taken by the duty engineer
D . the generator engine must be stopped
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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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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 inertia
B . Admission of starting air
C . The way of the vessel
D . securing of fuel to the cylinder
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If the turbocharger of a four-stroke/cycle diesel engine fails to operate, which of the following statements best describes the probable effect?()
A . Intake manifold pressure will be high
B . Intake manifold pressure will be unaffected
C . Exhaust temperatures will be high
D . Exhaust temperatures will be low
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If water is found in the crankcase of a diesel engine, the cause may be due to()
A . a cracked cylinder head
B . a leaky cylinder head gasket
C . a cracked cylinder liner
D . any of the above
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Which of the following problems may occur if the opening pressure of a fuel injection nozzle is greater than specified by the engine manufacturer?()
A . The amount of fuel injected will be increased
B . The start of injection will be retarded
C . The nozzle will permit fuel to dribble
D . The spray pattern will be distorted
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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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Which of the following actions should be taken by the engine room watch when the general alarm is sounded continuously?()
A . The fire pump should be started
B . The boiler rims should be secured
C . The fixed CO
system should be initiated into action
D . The engine room ventilation should be secured
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Which two of the following actions must an OSPF NSF-capable router execute after a supervisor engine switchover?() (Choose two.)
A . Re-learn the available OSPF neighbors with neighbor relationship restart
B . Send the graceful restart message
C . Re-acquire the link state database content for the network
D . Re-learn the available OSPF neighbors without neighbor relationship restart
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You are unable to pump out the aft starboard engine room bilge well that is fouled, with one foot of water over the top of the bilge well, what action should be carried out?()
A . Send the wiper into the well with only a scoop and pail
B . Remove the bilge manifold valve and attempt to back flush the line
C . Simultaneously operate all available bilge pumps
D . It is only necessary to transfer half the contents of a drum of degreaser into the bilge well
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Charging-air pressure increases if there is incorrect combustion and drop in the () of the diesel engine.
A . machine efficiency
B . machinery efficiency
C . mechanical efficiency
D . mechanics efficiency
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During the running of the diesel engine, if the supply of cooling water is interrupted or the temperature of cooling water out of the cylinder is too high, the duty engineer should ()
A . notify the duty officer, reduce the engine speed, take some measures to remove failures
B . notify the duty officer and stop the engine immediately, find the cause and remove failures
C . notify the C/E
D . notify the captai
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Which of the following conditions will develop if the flow of ‘raw’ cooling water to diesel engine is obstructed?()
A . Air will enter the cooling system
B . Carbon will plug the water cooled exhaust manifolds
C . The jacket water temperature will rise
D . The lube oil viscosity will increase
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Which of the actions listed should be taken by the engineer on watch when the general alarm is sounded continuously for 10 seconds?()
A . Engine room ventilation should be started
B . Main engines should be secured
C . The fire pump should be started
D . The fixed CO
system should be activated
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While on watch in the engine room, you hear a continuous sounding of the general alarmWhich of the following actions should you take FIRST?()
A . Secure the burners then proceed to your assigned boat station
B . Start the fire pump and establish flow to the fire main
C . Open the guardian valve and standby to maneuver
D . Open the master control valves on the fixed CO
system
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Any action taken to avoid collision shall,if the circumstances of the case admit,().
A、 be positive
B、be positive and made in ample time
C、 be positive, made in ample time and with due regard to the observance of good seamanship
D、 be positive, made in ample time, with due regard to the observance of good seamanship and avoiding complying with local regulations
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If the scavenge fire is of a more major nature, if there is a risk of the fire extending or if the scavenge trunk is adjacent to the crankcase with risk of a hot spot developing it sometimes becomes necessary to ()the engine.
A . stop
B . start
C . speed up
D . slow dow
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1.Where can we type the email address of the recipient if we don’t need them to take action?