我
- 1
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The effective stroke of a constant-stroke, individual, fuel injection pump is varied by the _____.
- A.control rack
- B.delivery valve
- C.governor speed
- D.plunger crossbar
- A.dead band
- B.control point
- C.deviation
- D.offset
- A.changing over to hand pump operation
- B.engaging the trick wheel
- C.the system has been filled with new oil
- D.the rudder angle indicator does not match the helm position
- A.Defective temperature controls in the system
- B.Cavitation in the cooling water pump
- C.Opened vent in the cooling system
- D.Restricted water passages in the engine
- A.a working cycle
- B.the operation
- C.two fuel injections
- D.events
- A.taken away
- B.engaged
- C.connected
- D.sealed off
- A.It aims to ensure safety at sea
- B.It aims to avoid damage to the environment
- C.It aims to prevent human injury or loss of life
- D.It aims to provide a method to run a company
- A.trick-wheel
- B.follow-up control
- C.six-way valve
- D.Rapson slide
- A.a closed loop control system
- B.an open loop control system
- C.a boiler control system
- D.a steering gear
- A.prevent the diesel engine surging
- B.prevent governor from being damaged because of swing
- C.reduce the probability of the crank shaft being torsional vibrated and resonated
- D.prevent the main engine being overload or overspeed
- A.Ammeter
- B.Voltmeter
- C.Wattmeter
- D.Synchroscope
- A.bottom
- B.middle
- C.top
- D.none of the above
- A.thirsty
- B.sick or injured
- C.wet
- D.awake
- A.well ventilated
- B.well clean
- C.in good order
- D.more room
- A.speed settings
- B.speed droops
- C.speed drops
- D.speed changes
- A.lubricating oil
- B.lubricating oil systems
- C.strainers
- D.cartridges
- 17
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Cold weather starting of a diesel engine is more difficult than warm weather starting due to_____.
- A.use of low viscosity oil in cold weather
- B.increased moisture content of inlet air in cold weather
- C.increased drag of pistons and bearings due to increased oil viscosity
- D.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
- A.keyway
- B.shaft
- C.packing
- D.valve
- A.improve fuel flow volume
- B.cool the exhaust valves
- C.reduce the intake air charge density
- D.increase the temperature of exhaust gases
- A.shims
- B.packing
- C.glands
- D.washers
- A.control equipment
- B.power unit
- C.transmission mechanisms
- D.fittings and pipeline
- A.on the windward side of the opening
- B.on the leeward side of the opening
- C.at a right angle to the wind direction
- D.so that the obstruction of your body will protect you from the fumes
- A.raw water pump discharge
- B.expansion tank outlet
- C.cooling water heat exchanger
- D.outlet engine jacket water outlet
- A.igniting boiler
- B.releasing air in sea water system
- C.starting generator
- D.cut off shore power
- A.cutting out individual injectors and noting engine performance
- B.checking lube oil temperature
- C.checking cam position
- D.using a timing light
- A.One-hour notice
- B.Dead slow ahead
- C.Finished with engines
- D.Half astern
- A.have a high viscosity index
- B.mix readily with refrigerant
- C.have a high freezing point
- D.have a low pour point
- A.smoky exhaust
- B.starting failure
- C.overload
- D.over speed
- A.take in
- B.put in
- C.take out
- D.put up
- A.constant
- B.pulse
- C.high
- D.none of the above
- A.generator sets running trial
- B.shafting intensity trial
- C.the trail for pumps that working for M.E
- D.M.E safety devices trial
- A.at any time
- B.only after the engine room control station is switched to ‘bridge control’
- C.whenever the secondary station is switched to ‘bridge control’
- D.whenever the engine side control station is switched to ‘bridge control’
- A.increase compressor discharge pressure on demand
- B.increase compressor operating speed as necessary
- C.allow the motor to turn the compressor opposed only by friction
- D.reduce the compressor frictional load when starting
- A.Heat is always transferred at a constant rate
- B.Heat transfer rate increases as temperature difference increases
- C.The rate of heat transfer is not affected by temperature difference
- D.The high temperature region is known as a heat sink
- A.temperature of compression
- B.atomization of the fuel
- C.penetration of the fuel
- D.all of the above
- A.frequently grounding out
- B.frequently starting and stopping
- C.running too fast
- D.running too slow
- A.In times of heavy weather, it is extremely dangerous if a seaman is not enough tall
- B.In times of heavy weather, it is extremely dangerous if a crew is very short
- C.In case of bad weather, it is particularly dangerous if there is a shortage in personnel
- D.In case of bad weather, it is particularly dangerous if there are enough personnel
- A.detecting faulty combustion in individual cylinders
- B.adjusting fuel racks to maintain equal loading between cylinders
- C.adjusting the load limit setting of the governor at idle conditions
- D.calculating engine horsepower
- A.Ⅰonly
- B.Ⅱonly
- C.Both Ⅰand Ⅱ
- D.NeitherⅠnor Ⅱ
- A.a leaking seal ring
- B.heat transfer from exhaust valves
- C.restricted cooling passages
- D.overheated intake valves
- A.foam
- B.CO2
- C.low velocity water fog
- D.high velocity water fog
- A.time-delay protection
- B.short-circuit protection
- C.short duration surge protection
- D.sustained overload protection
- A.remove the discharge ring
- B.re-prime the purifier
- C.the centrifuge to its proper speed
- D.install an additional discharge ring
- A.less than
- B.greater than
- C.equal to
- D.twice larger than
- A.main stem stop valve
- B.auxiliary steam stop valve
- C.feed check or control valve
- D.blow down valve
- A.will lift
- B.will be lifted
- C.will close
- D.will be closed
- A.means of rheostat the governor settings
- B.a balance coil excitation
- C.adjusting the governor settings
- D.changing excitation
- A.normal operation
- B.a dirty commutator
- C.increased brush capacity
- D.water vapor absorption
- A.wheelhouse control station
- B.engine room control station
- C.captains office
- D.chief engineers office
- 51
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When off loading garbage to another ship, your records must identify that ship by name and _____.
- A.home port
- B.operators name of record
- C.official number
- D.masters name
- A.one year
- B.two years
- C.four years
- D.five years
- A.Over speed
- B.fire improperly
- C.lose oil pressure
- D.overheatrapidly
- A.rather than
- B.other than
- C.in addition that
- D.except for
- A.secure and tag the electrical circuit
- B.place a crow bar in the flywheel of the unit
- C.inform. all persons in the area not to start the unit
- D.make a log book entry
- A.increase the exhaust temperature
- B.increase the power of
- C.reduce the speed
- D.increase the fuel consumption
- A.clear
- B.hazy light brown
- C.hazy light blue
- D.hazy light grey
- A.Full Ahead
- B.Half Ahead
- C.Full Astern
- D.Half Astern
- A.The designated person in charge
- B.The tanker man
- C.The senior able seaman
- D.The oiler
- A.agent
- B.shipchandler
- C.surveyor
- D.engineer
- A.superheated
- B.saturated
- C.condensed
- D.convected
- A.the repair standard of main docking repair item
- B.the special tool for repair item
- C.the skill of repairer
- D.the status of docking repair equipment
- A.reciprocating
- B.diffuser
- C.turbine
- D.vane
- A.Polyphase
- B.Wound-rotor
- C.Induction
- D.Synchronous
- A.protect the compressor from liquid flood back
- B.protect the compressor from low discharge pressure
- C.start and stop the compressor upon system demand
- D.start the compressor after a drop in the evaporator pressure
- A.overfeeding of the expansion valve
- B.damage to the condenser
- C.constant running of the compressor
- D.flooding of the receiver
- 67
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Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by _____.
- A.sounding the tank
- B.waiting for the vessel to list
- C.examining tank boundaries
- D.checking fuel oil strainers
- A.at most references
- B.at least references
- C.maximum standards
- D.minimum standards
- A.Any internal transfer of oil cargo during a voyage
- B.The discharge overboard in port or at sea of any bilge water accumulated in machinery spaces
- C.The loading or unloading of any or all oil cargo
- D.All of the above
- A.the peak pressure in a cylinder
- B.the temperature of the cooling water
- C.the fuel consumption
- D.none of the above
- A.coming up from the BDC
- B.coming up from the TDC
- C.coming down from the BDC
- D.coming down from the TDC
- A.prolong the ignition delay period
- B.ensure the beginning of fuel injection
- C.thoroughly utilize the air charge
- D.allow controlled fuel combustion
- A.It consumes no excitation power
- B.It has current transformers
- C.Components are needed for accurate compounding
- D.Its excitation system is vulnerable to voltage variations
- A.fuel dribbling from leaking fuel injectors
- B.burning fuel with a high carbon content
- C.burning fuel with a high vanadium content
- D.burning fuel with a lower sulphur content
- A.greater
- B.better
- C.smaller
- D.less
- A.at the first stop after a long voyage e.gby anchoring if possible
- B.at the first stop after arrival at harbor
- C.at the first stop after low load running
- D.at the first stop after passing river or canal passage
- A.indicated horsepower
- B.brake horsepower
- C.net horsepower
- D.friction horsepower
- A.air cylinder
- B.combustion chamber
- C.steam drum
- D.expansion tank
- A.Bow thrust full to pert
- B.Bow thrust full to starboard
- C.No bow thrust revolutions
- D.No stern thrust revolutions
- A.to work as overload characteristic
- B.overspeed
- C.over mechanical load only
- D.over thermal load only
- A.open; short; after
- B.closed; short; after
- C.open; long; before
- D.closed; long; before
- A.residual carbon deposits
- B.lube oil viscosity breakdown
- C.uneven heat expansion of the rings
- D.uneven heat expansion of the piston
- A.for atomizing
- B.for centrifuging
- C.in a storage tank
- D.in the re-circulating line
- A.low compression temperature
- B.low ambient air pressure
- C.high lube oil pump pressure
- D.high fuel oil booster pump pressure
- A.Shape of the piston crowns
- B.Increasing the compression ratios
- C.Increasing the piston crowns
- D.Increasing the turbocharger gear ratio
- A.small wire brush
- B.compressed air jet
- C.clean dry cloth
- D.10% solution carbon solvent and water
- A.Steering gear and windlass
- B.Navigation light and radio power panel
- C.Navigation device power box
- D.Daily fresh water pump
- A.stand by
- B.stand for
- C.stood by
- D.stood for
- A.A
- B.B
- C.C
- D.D?
- A.the compressor short cycling on high pressure cut out switch
- B.high suction pressure
- C.high head pressure
- D.bubbles in the sight glass
- A.an electric motor
- B.a diesel engine
- C.a compressor
- D.oil
- A.overheated injection pumps
- B.water condensed in the cylinders
- C.fuel dilution of the lube oil
- D.air in the fuel system
- A.excessive condenser cooling water
- B.warm food in the refrigerator
- C.a shortage of refrigerant
- D.s shortage of compressor oil
- A.thrust block
- B.sounding rod
- C.connecting rod
- D.push rod
- A.monitoring signal
- B.inverse signal
- C.reverse signal
- D.feedback signal
- A.Control panel
- B.Paralleling panel
- C.Load panel
- D.Busbar
- A.install oversized rings
- B.hone the cylinder liner to allow ring installation
- C.compress the rings tighter with a compressing tool
- D.file the ends of the rings
- A.the production of high pressure gases
- B.the removal of expended combustion gases
- C.the admission of air to the cylinder
- D.all of the above
- A.maintain higher than normal jacket water temperature
- B.change the lube oil more frequently than normal
- C.maintain a higher air-box temperature than normal
- D.maintain a higher air-box pressure than normal
- A.a needle gun
- B.soap and water
- C.a wire brush
- D.a chipping hammer
- A.no combustion
- B.deposits in the fuel
- C.excessive air in the fuel
- D.cold fuel oil
- A.of
- B.up of
- C.from
- D.out
- A.unusually solid welded
- B.never be solid forged
- C.almost invariably solid forged
- D.almost invariably be welded
- A.incinerated ash at anytime
- B.fairly dense material that will sink, i.emetal cans or glass bottles at anytime
- C.victual waste when at least 12 nautical miles from shore
- D.absolutely no garbage at anytime
- A.the filter is clogged
- B.bilge suction value is clogged
- C.suction value and discharge value of the pump do not open fully
- D.screw pump is worn seriously and volumetric efficiency is decreased
- A.Hydraulic stress and distortion will develop
- B.Hot spots will develop
- C.Fuel oil viscosity will increased
- D.An increase in trapped deposits of scale and dirt
- A.the steering
- B.the driven gear
- C.the turning gear
- D.the timing gear
- A.Securing equipment against slipping or drifting
- B.Operating machinery at its recommended speed
- C.Repairing loose handles on tools before using
- D.Using tools for purpose for which they are not designed
- A.ISM Code
- B.ISPS Code
- C.FSS Code
- D.IBC Code
- A.improve power factor
- B.reduce voltage oscillation
- C.increase the insulation of circuits
- D.eliminate regenerated magnetic fields
- A.Splash
- B.Gravity
- C.Pressure
- D.Bypass
- A.fuel oil vapor at the sludge tank vent
- B.unburned fuel vapors in the scavenge air receiver
- C.lube oil vapors in the crank case
- D.lube oil vapors in the engine room
- A.a combination of constant volume and constant pressure
- B.a combination of constant temperature and constant pressure
- C.entirely constant pressure
- D.entirely constant volume
- A.They should always be started with the discharge valve closed
- B.They should always be started with the discharge valve opened
- C.A priming pump is always required to flood the impeller suction
- D.They should always be started with the sealing line valves closed
- A.on top cover
- B.on sides of bowl
- C.in drain line on the discs
- D.on the discs
- A.piston
- B.drum
- C.plunger
- D.barrel
- A.have had
- B.had have
- C.had had
- D.would have had
- A.noise and vibration
- B.an increase in discharge pressure
- C.an increase in suction pressure
- D.lifting of the relief valve
- A.foam extinguishers
- B.water spray equipment
- C.dry powder extinguishers
- D.soda-acid extinguishers
- A.turbine
- B.screw
- C.vaneejector
- D.centrifugal
- A.an engine-driven, as well
- B.an engine-driven, has an independent pump
- C.an independent, as well
- D.an independent, has an engine-driven pump
- A.furnace to be re-purged
- B.electric charge to buildup in the igniter
- C.fuel pump to restart
- D.dram level to stabilize
- A.0.30 to 1
- B.3.00 to 1
- C.3.33 to 1
- D.33.0 to 1
- A.well knurled
- B.slightly streaked
- C.lightly glazed
- D.highly polished
- A.timing
- B.deviation
- C.firing order
- D.phase
- A.open loop control
- B.feedback
- C.combining control
- D.integral process
- A.The mixture is too lean to burn
- B.The mixture is too rich to burn
- C.The vapor is about to explode
- D.Conditions are perfect for combustion
- A.high fuel oil viscosity
- B.low fuel oil temperature
- C.high lube oil viscosity
- D.energized glow plugs
- A.turned
- B.oil level checked
- C.filled with water
- D.A and B
- A.head capacity to improve
- B.discharge to be reversed
- C.efficiency to decrease
- D.slippage to decrease
- A.oil rings only
- B.compression and scraper rings
- C.cylinder liner sealings
- D.cylinder liner ring grooves
- A.liquid strainer
- B.refrigerant inlet of the condenser
- C.inlet side of the evaporator
- D.suction side of the compressor
- A.suction side of a bilge pump
- B.exhaust manifold of an auxiliary diesel
- C.discharge line from an air compressor
- D.chemical feed tank of an evaporator
- A.to keeping you
- B.to kept you
- C.to have kept you
- D.kept you
- A.Low compression pressure and high exhaust temperature
- B.Low firing pressure and high exhaust temperature
- C.Low compression pressure and low exhaust temperature
- D.Low firing pressure and low exhaust temperature
- A.an International Ship Security Certificate
- B.an International Oil Pollution Certificate
- C.a Safety Management Certificate
- D.an International Ballast Water Management Certificate
- A.priming water
- B.power supply
- C.packing gland
- D.bearing lubrication
- A.pressure
- B.temperature
- C.density
- D.volume
- A.The compressed air
- B.The compressing air
- C.The transfer pump
- D.The head tank
- 140
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A purge recovery system is used in a centrifugal air conditioning or refrigeration system to _____.
- A.purge lube oil from the liquid refrigerant
- B.recover water purged from the system
- C.separate foul gases from the receiver
- D.purge non-condensable gases without losing refrigerant
- A.principle
- B.principal
- C.cause
- D.case
- A.II
- B.III
- C..II+III
- D.I
- A.the master
- B.the chief engineer
- C.the bridge
- D.the company superintendent
- 144
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For proper operation, auxiliary boiler feed water must have which of the following characteristics?
- A.High oxygen concentration
- B.Low pH
- C.Proper alkalinity
- D.All of the above
- A.take place
- B.take over
- C.carry out
- D.carry over
- A.turbine
- B.screw
- C.vane
- D.ejector
- A.abrasive particles
- B.metallic oxides
- C.corrosive acids
- D.any or all of the above
- A.claim to
- B.claiming to
- C.claim for
- D.claiming for
- A.wash it with fresh water and apply an external source of heat
- B.renew the windings
- C.send it ashore to an approved service facility
- D.rinse all electrical parts with a carbon tetrachloride cleaning solvent and then blow dry the motor with compressed air
- A.fouling turbine
- B.fuel pump faults
- C.lubrication failure
- D.excessive cooling
- A.lower/higher
- B.maximum/higher
- C.predetermined minimum/higher
- D.predetermined maximum/lower
- A.throughput
- B.additive percent
- C.cetane number
- D.TBN number
- A.water
- B.fresh air
- C.oils
- D.gases
- A.allow impurities to settle out of the fuel
- B.allow air to escape from the fuel
- C.make fuel available for immediate use
- D.all of the above
- A.foam and water
- B.CO2 and dry chemical
- C.dry chemical and water
- D.foam and CO2
- A.being compressed
- B.to be pumped up
- C.is pressurized
- D.are built up
- A.check and regulate the water level
- B.close the air cock once fires are lit
- C.blowdown the gage glass
- D.crack the steam stop to assure protective steam flow
- A.centrifugal separators; the engine cylinder
- B.oily water separators; the engine cylinder
- C.oily water separators; the fuel supply system
- D.centrifuges; the fuel supply system
- A.The winch motor
- B.The band brake
- C.The winch barrel
- D.The anchor capstan
- A.the peak pressure in a cylinder
- B.the temperature of the cooling water
- C.the fuel consumption
- D.none of the above
