我
- A.both as clarifiers
- B.first one as clarifiers, second one as purifier
- C.both as purifiers
- D.first one as purifier, second one as clarifier
- A.It causes excessive smoking and soot at low firing rates
- B.It doesn’t readily burn when combined with oxygen
- C.It clogs fuel oil strainers more often
- D.It forms a corrosive acid when mixed with water or water vapor
- A.pre-injection fuel oil treatment
- B.lube oil filtration
- C.lube oil purification
- D.piston cooling
- A.A special sealing gland
- B.Propeller
- C.Tailshaft
- D.Sterntube bearing
- A.shrunk into
- B.expanded into
- C.extended into
- D.designated into
- 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.with the approval of the chief engineer only
- A.warping head
- B.fairlead
- C.wildcat
- D.capstan
- A.excessive drive motor speed
- B.excessive pump discharge pressure
- C.too low of a tilting box angle
- D.insufficient drive motor speed
- A.gas turbine
- B.diesel engine
- C.steam engine
- D.gasoline engine
- A.rise
- B.fall
- C.be maintained constant
- D.None of the above is true
- A.360o
- B.270o
- C.180o
- D.90o
- A.an International Ship Security Certificate
- B.an International Oil Pollution Prevention Certificate
- C.a Safety Management Certificate
- D.an International Ballast Water Management Certificate
- A.test the starting system
- B.remove condensation from the cylinders
- C.check the compression
- D.check for proper lube oil pressure
- A.broken valve springs
- B.tight drive belts
- C.high line voltage
- D.air in the system
- A.a bridge gauge
- B.a micrometer
- C.a thermometer
- D.a indicator
- A.smoke density has been decreased sufficiently to see the bulkhead opposite the compartment s entrance
- B.a lifeline and explosion proof flash light are used
- C.all smoke and toxic fumes are removed and an adequate oxygen supply is present
- D.overhaul has been completed to remove any possible source of re-ignition
- A.the filter to operate more efficiently
- B.the lube oil cooler to be bypassed
- C.positive lube oil pump suction to be assured
- D.galvanic action in the cooler to be minimized
- A.is properly vented
- B.contains no explosive fumes
- C.has no oil in the bilges
- D.All of the above
- A.Pneumatic pipes
- B.Hydraulic pipes
- C.Telescopic pipes
- D.Operating gas pipes
- A.ensure all machinery which may be used during maneuvering is in ready
- B.ensure an adequate reserve of power is available for steering gear and other requirements
- C.keep the main propulsion unit controls continuously attended when in the manual mode of operation
- D.ensure all machinery which may be used during maneuvering is running stably
- A.changing the angle of the tilting plate
- B.changing the speed of the pump
- C.moving the slide block and rotor
- D.moving the shaft trunnion block
- A.Ship security officer
- B.Company security officer
- C.Port facility security officer
- D.PSC officer
- A.cylinder head cracks
- B.piping joints
- C.pump leaking
- D.all of the above
- A.sludge
- B.oily ballast water
- C.bilge slops
- D.All of the above
- A.Liquids should never be transferred between tanks without consulting the dock master
- B.If sea valves have been disassembled, all bonnets must be checked for leakage when the ship is re-floated
- C.Before re-floating, all sea chest strainers should be verified as having been replaced
- D.All of the above
- 26
-
Most often ____ is attached to the engine-propeller shaft for efficient electric power generation.
- A.a variable-speed AC generator
- B.a fixed-speed AC generator
- C.an air blower
- D.a DC generator
- A.13.82 tons
- B.15.61 tons
- C.16.00 tons
- D.16.37 tons
- A.the bacteria
- B.oxygen
- C.oxidizing function
- D.agitation function
- A.conducted through the engine block
- B.conducted to water cooled cylinder walls
- C.conducted through the piston crown
- D.loss to escaping exhaust gases
- A.mineral oil
- B.machinery oil being transferred for shipboard use
- C.crude oil unrefined
- D.normal bilge oil and water
- A.chlorine water
- B.ozone
- C.hypo-calcium chloride
- D.calcium oxide
- A.cetane number
- B.volatility point
- C.viscosity index
- D.octane number
- A.reservoir
- B.hand pump
- C.accelerator
- D.accumulator
- 34
-
The temperature of the fuel oil received during bunkering operation is critical in determining the .
- A.expansion space to leave in a tank
- B.flash point at which the fuel will burn
- C.temperature to which the fuel must be heated
- D.rate at which the fuel can be pumped during transfer operations
- A.horizontal axis
- B.crankshaft
- C.vertical axis
- D.camshaft
- A.stuffing box diameter
- B.direction of rotation of the screws
- C.pitch of the screws
- D.type of driving gears
- A.windlass
- B.anchor capstan
- C.turning gear
- D.winch barrel
- 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 captain
- A.the oil separator
- B.the fresh water generator
- C.the compressor
- D.fire pump
- A.I only
- B.II only
- C.both I and II
- D.neither I nor II
- A.lifted
- B.reassembled
- C.dismounted
- D.disassembled
- A.larger and heavier than
- B.as much as
- C.smaller and lighter than
- D.more dangerous than
- A.clogged filters
- B.poor combustion
- C.overloading of the diesel
- D.shock of fuel lines
- A.weight
- B.internal friction
- C.demulsibility
- D.S.A.Enumber
- 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
- A.reset action
- B.proportional action
- C.two position action
- D.rate action
- A.too great a loading
- B.fouled turbocharger
- C.bad combustion
- D.excessive air
- A.react with insufficient speed droop
- B.fail to react to small speed changes
- C.have excessive sensitivity to small speed changes
- D.remain in the neutral position
- A.ensure penetration and distribution of the fuel in the combustion chamber
- B.ensure the needle valve is flushed clean during each injection
- C.prevent combustion gas blowback into the open needle valve
- D.prevent reflected pressure waves when the needle valve closes
- A.low water level
- B.low oil pressure
- C.excessively high fuel pressure
- D.an improper air/fuel ratio
- A.camshaft
- B.reduction gears
- C.rocker arm
- D.connecting or piston rod
- A.A piston
- B.A fuel injection pump
- C.A feed water pump
- D.A lube oil pump
- A.hydrogen chloride
- B.calcium chloride
- C.sulfuric acid
- D.muriatic acid
- A.stress
- B.strain
- C.shear strength
- D.ultimate tensile strength
- A.1% to 3%
- B.1% to 2%
- C.4%
- D.2% to 4%
- A.Variable volumes can be obtained with gear pumps only by variation of the pump drive speed
- B.A radial piston pump houses sliding pistons in a stationary cylinder block through which passes a rotating pintle or ported shaft
- C.The amount of fluid displaced per revolution of an axial piston rotary pump is dependent on the angle formed between the cylinder block and valve plate
- D.All of the above
- A.cause of salt contamination
- B.location of salt water contamination
- C.chemical makeup of feed-water
- D.level of alkalinity in condensate
- A.modulating the oil flow with the six-way valve
- B.moving the automatic pressure differential valve
- C.moving the receiving telemotor which regulates the tow-way valve
- D.varying the eccentricity of a floating ting or angle of a tilting box
- A.has kept pace with
- B.has kept pace to
- C.has made pace with
- D.has made pace to
- A.maximum working temperature
- B.minimum working temperature
- C.the joint
- D.the insulating material
- A.injection valve
- B.relief valve
- C.discharge valve
- D.inlet filter
- A.control inlet air temperature
- B.control inlet air volume
- C.maintain relative humidity at 15%
- D.restore conditioned air temperature to a comfortable level
- A.Diesel engine propulsion
- B.Diesel electric propulsion
- C.Steam engine propulsion
- D.Gas turbine propulsion
- A.more water contents
- B.contamination with fuel oil
- C.higher temperature
- D.sufficient cooling of oil mist
- A.push rods
- B.chain drives
- C.rocker arms
- D.flywheels
- A.distribution boards
- B.section boards
- C.emergency switch boards
- D.main switch boards
- A.clarifier
- B.oil/water separator
- C.incinerator
- D.distiller
- A.the direct acting relief valve is used for controlling lower flows and pressure
- B.the pilot operated relief valve is used for controlling higher flows and pressure
- C.the pilot operated relief valve is used for controlling lower flows and pressure
- D.the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
- A.the upward stroke
- B.the downward stroke
- C.the power stroke
- D.the suction stroke
- A.to provide electrical signal
- B.to provide feed-back
- C.to provide local manual control
- D.to provide right rudder angle
- A.oily water separator
- B.sewage treatment plant
- C.fuel oil separator
- D.incinerator
- A.axial loads
- B.firing loads
- C.inertia loads
- D.centripetal loads
- A.leaky discharge valves on the LP cylinder
- B.leaky discharge valves on the HP cylinder
- C.insufficient intercooler cooling
- D.low ambient air pressure
- A.air cooler
- B.turbocharger
- C.charge air
- D.A+B+C
- A.IMO
- B.CCS
- C.USCG
- D.PICC
- A.Height of the machine
- B.Temperature of the liquid seal
- C.Gravity disc
- D.Bowl diameter
- 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
- A.space limitations prevent separately run pipes
- B.the engines are small auxiliary units
- C.they are arranged to prevent gas backflow to each engine
- D.a waste heat boiler is installed
- A.Excessive piston blow-by to the manifold
- B.Insufficient cooling water flow
- C.Accumulated water in the air boxes
- D.Clogged air intake filters
- A.fuel oil pressure
- B.a cam operated follower
- C.a spring-loaded pressure plate
- D.timing gears keyed to the crankshaft
- A.two-step controller action
- B.proportional, controller action
- C.integral controller action
- D.derivative controller action
- A.hoisting/luffing/slewing
- B.lifting/raising/lowering
- C.rotating/raising/handling
- D.hosting/lowering/moving
- A.a reduction
- B.an increase
- C.an outing
- D.a downwards
- A.gums, acids, and varnishes
- B.removed by cellulose type filters
- C.neutralized by oil additives
- D.not removed by absorbent filters
- A.stop engine
- B.finished with engine
- C.dead slow ahead
- D.dead slow astern
- A.the second engineer had got into the engine room
- B.the second engineer got into the engine room
- C.has the second engineer got into the engine room
- D.did the second engineer get into the engine room
- A.Stationary
- B.Full floating
- C.Semi-floating
- D.Free rolling
- A.fuel oil only
- B.crude oil only
- C.liquefied petroleum gas
- D.petroleum oil of any kind
- A.seized
- B.clogged
- C.melted
- D.inserted
- 90
-
Fires resulting from spontaneous combustion are usually caused by the improper disposal of _____.
- A.cigarette butts
- B.oily rags
- C.burner torches
- D.lighted matches
- A.vapor
- B.liquid
- C.solid
- D.None of the above is tree
- A.adding small amounts of oil to the system
- B.the system has been overheated
- C.the system has been drained and then filled with new oil
- D.the system has been idle for a long period of time
- A.engine overload
- B.leaky valves
- C.stuck or broken piston rings
- D.low air injection pressure
- A.connecting rods
- B.piston rods
- C.tie rods
- D.jack-bolts
- A.connecting rods
- B.main bearing
- C.column
- D.tie rods
- A.Electric
- B.Hydraulic
- C.Air
- D.All of the above
- A.the engineer officer in charge of watch
- B.the deck officer in charge of watch
- C.the master
- D.the chief mate
- A.too much superheat
- B.insufficient superheat
- C.suction pressure too low
- D.excessive refrigerant returning to the compressor
- A.clogged lube oil piping
- B.excessive valve-guide clearance
- C.high lube oil viscosity
- D.low lube oil temperature
- A.center drill
- B.finish drill
- C.broach
- D.reamer
- A.The process begins after TDC
- B.The process ends before TDC
- C.When the piston is near to the TDC the fuel injection ends
- D.None of the above is true√
- A.reduce its speed
- B.find out its trouble
- C.eliminate its trouble
- D.all the above
- A.odorless
- B.explosive
- C.nontoxic
- D.visible
- A.Delivery check valve
- B.Pump barrel
- C.Tubing to the injector
- D.Cam follower
- A.once every crankshaft revolution
- B.once every two crankshaft revolutions
- C.once every piston stroke
- D.twice every piston stroke
- A.corrosion fretting
- B.insufficient lubrication
- C.abnormal wear
- D.fatigue failure
- A.two-stroke
- B.four-stoke
- C.long-stroke
- D.short-stroke
- A.cable stopper
- B.winch barrel
- C.slewing rim
- D.warping drum
- A.increase/reduce
- B.reduce/increase
- C.increase/increase
- D.reduce/reduce
- 110
-
An indicator on the main switchboard should show ______ the emergency battery is in service or not.
- A.that
- B.when
- C.if
- D.whether
- A.O-ring
- B.gasket
- C.washer
- D.packing
- A.Because it is difficult to plan and manage
- B.Because it is cannot be well categorized
- C.Because it is a difficult work for people to undergo
- D.Because it is seldom researched by research
- A.viscosity
- B.pressure
- C.resistance
- D.setting point
- A.more efficiently uses available engine power
- B.operates at a lower efficiency at a fixed speed
- C.produces the same torque at lower engine power
- D.develops its rated power at a lower speed
- A.must connect the bilge well suction directly
- B.should not pump out the water accumulated in the cargos
- C.should not used for emergency drainage in case of ship collision
- D.should connect to the fire fighting system directly
- A.increase thermal efficiency
- B.cause clogging of the fuel system
- C.increase the ability of the engine to start in cold weather
- D.produce corrosion in the cylinder and exhaust system at low loads
- A.their free-floating design
- B.their relatively small size
- C.the reciprocating motion of the piston
- D.their position in the lubrication system
- 118
-
With V1T the start of injection may be _____ as the engine load is reduced within a certain range.
- A.advanced
- B.retarded
- C.relayed
- D.cut off
- A.one year
- B.two years
- C.four years
- D.five years
- A.in boiler drums
- B.in refrigerating plants
- C.in starting air pipes
- D.in air coolers
- A.completely filled with saltwater
- B.filled with de-scaling compound
- C.tightly closed to exclude air
- D.vented to the atmosphere
- A.electronic ignition system
- B.compression of air by the piston
- C.friction in the fuel injector
- D.fuel oil bearing system
- A.gives up large amount of heat
- B.gives off large amount of heat
- C.gives up large amount of steam
- D.gives off large amount of steam
- A.reciprocating pump
- B.vane pump
- C.screw pump
- D.centrifugal pump
- A.superheated
- B.super-cooled
- C.at or below the dew point
- D.All of the above
- A.anaerobic bacteria
- B.aerobic bacteria
- C.air bubbles
- D.disinfection chemicals
- A.improper venting of the cooling system
- B.carrying the expansion tank water level too high
- C.a totally clogged impeller in the cooling water pump
- D.an incorrectly set cooling system temperature control
- A.servo-motor
- B.swash plate
- C.plunger
- D.cylinder
- A.second stage feed heater
- B.saltwater feed heater
- C.distillate cooler
- D.second stage vapor separator
- A.Constant volume
- B.Constant pressure
- C.Pulse pressure
- D.Radial flow
- A.Pour point
- B.Cloud point
- C.Vacuum
- D.Pressure
- A.carry off
- B.carry down
- C.carry on
- D.carry over
- A.fuel treatment
- B.fuel combustion
- C.fuel injection
- D.fuel separating
- A.5 volts, the output changes 10 volts
- B.10 volts, the output changes 5 volts
- C.2 volts, the output changes 10 volts
- D.10 volts, the output changes 2 volts
- A.do
- B.to do
- C.done
- D.doing
- A.improved cold weather starting
- B.excessive fuel oil consumption
- C.reduced ignition lag
- D.smoother engine operation
- 137
-
A supercharged engine differs from an un-supercharged engine it operates at an increases pressure.
- A.in which
- B.on which
- C.at which
- D.in that
- A.load panel
- B.emergency generator control panel
- C.battery changing and discharging panel
- D.paralleling panel
- A.filter
- B.hole
- C.pollution
- D.content
- A.of a material harder than the cylinder liner
- B.properly lubricated
- C.prevented from compressing
- D.prevented from rotating during engine operation
- A.specific gravity
- B.viscosity
- C.S.Enumber
- D.hydrolytic stability
- 142
-
The most likely place for a fire to start through the process of spontaneous combustion is in _____.
- A.an electrical switchboard
- B.the pressure tanks
- C.the fuel oil tanks
- D.the oily rag bin
- A.should agitate
- B.should not agitate
- C.should mix up
- D.should not add up
- A.examine the condition of the propeller
- B.chip and paint all hull protection zincs
- C.install new docking plugs in all cofferdams
- D.inspect the hull for hogging or sagging
- A.damaged intake valves
- B.excessively tight mounting bolts
- C.insufficient cylinder lubrication
- D.a loose piston
- A.must be provided
- B.may be provided
- C.have provided
- D.can be provided
- A.inside the bearing
- B.outside the bearing
- C.covering the crankshaft
- D.none of the above
- A.did work
- B.would work well
- C.didnt work
- D.wouldnt work
- A.a change-over chest
- B.a head tank
- C.a emergency bilge pump
- D.an air cooler
- A.high average exhaust manifold
- B.greatly fluctuating inlet manifold pressure
- C.constant exhaust manifold pressure
- D.multiple exhaust pipes to the turbocharger
- A.result in immediate power outages
- B.damage circuit breakers
- C.appear on the ground detection system
- D.damage insulation and may cause outages
- A.one
- B.fifteen
- C.sixty
- D.ninety
- A.changing the direction of exhaust gas flow
- B.increasing the exhaust gas velocity
- C.changing the exhaust gas weight
- D.increasing the exhaust gas static pressure
- A.pump
- B.the cylinder
- C.the hunting gear
- D.the rudder
- A.temperature
- B.water level
- C.pressure
- D.rate of flow
- A.droop
- B.dead banding
- C.dash potting
- D.hunting
- A.a spark plug
- B.injectors
- C.the heat of compression
- D.increasing jacket water temperatures
- A.28 seconds/7 knots
- B.28 seconds/14 knots
- C.60 seconds/7 knots
- D.60 seconds/14 knots
- A.above
- B.below
- C.equal to
- D.None of the above
- A.low exhaust temperature
- B.loss of engine power
- C.burned intake valves
- D.engine racing
