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- A.The flyweights move towards their center
- B.The pilot valve plunger moves towards its normal position
- C.The power piston moves downwards until it returns to its normal position
- D.The terminal shaft moves to a new position
- A.①
- B.①②
- C.②③
- D.①②③
- A.It is a kind of mechanical governor.
- B.It can not be used for parallel operation.
- C.It has speed droop.
- D.It may only be manually controlled from a switch boar
- E.
- 6
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材料：
- A typical example of a hydraulic governor is the Woodward. This has adjustable droop for parallel operation and it is fitted with a speed-adjusting control . If required it can be fitted with a synchronizing motor to provide remote control from a switchbo
- A gear pump driven from the engine supplies oil under pressure to accumulator pistons under which is a by-pass to regulate maximum pressure. One branch supplies oil which acts on top of the power piston, the pressure always tending to turn the terminal sh
- A.what type of governor should be provided when the engine is used for electric power generation
- B.why the speed of the engine fluctuates
- C.how the governor works
- D.how the fuel pumps work
- A.flag states/PSCOs
- B.flag states/ship owners
- C.port states/PSCOs
- D.port states/ship owners
- A.PSCOs
- B.Ship owners
- C.Flag states
- D.Port states
- A.become a contracting Party and promulgate regulations for implementing PSC
- B.inform ship owners
- C.establish procedures
- D.inform shipping companies
- A.the ISM Code
- B.the ISPS Code
- C.the IBC Code
- D.the IGC Code
- 12
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Safety-management objectives of the Company should establish safeguards ______all identified risks.
- A.with
- B.without
- C.against
- D.above
- A.Pump only if the discharge is led to a shore tank or barge
- B.Pump only during the hours of darkness
- C.Pump only on the outgoing tide
- D.Pump only as much as is necessary
- A.pollution
- B.economization(节约)
- C.safety
- D.efficiency
- A.secure loose gear
- B.move quickly about the ship
- C.increase lighting
- D.shutdown auxiliary equipment
- A.The watch keeping personnel
- B.The chief engineer
- C.The person on a bunker barge
- D.The duty deck officer
- A.manual mode
- B.automatic mode
- C.remote mode
- D.follow-up mode
- A.satisfied engineers
- B.qualified ratings
- C.satisfied chief engineer
- D.qualified chief engineer
- A.substandard ship
- B.standard ship
- C.over-standard ship
- D.reference ship
- A.CPP
- B.FPP
- C.PSC
- D.FSC
- A.one year
- B.two years
- C.four years
- D.five years
- A.bridge log
- B.Master's log
- C.engine room log
- D.oil record book
- A.BRC
- B.MCC
- C.AUT-0
- D.AUT-1
- A.trim
- B.lean
- C.draft
- D.tonnage
- A.noting the condition of the fairwater
- B.inspection of the keyway
- C.logging inspection results in the official deck log
- D.thrust bearing
- A.To ensure that the proper residuals of treatment chemicals, as specified, are maintained all time
- B.To trace leakage in the cooling water system
- C.It is not necessary
- D.To detect the presence of contaminants in the water that may be injurious to the cooling system
- A.Flash point improvers
- B.Pour point improvers
- C.Inhibitors
- D.Foam suppressors(抑制物)
- A.remain the same
- B.increase
- C.decrease
- D.can’t be comfirmed
- A.canister-type(滤毒罐型) gas mask
- B.fresh-air breathing apparatus
- C.self-contained breathing apparatus
- D.combustible gas indicator
- A.To make them aware(明白的) there is a fire.
- B.To let them know they should leave the engine room.
- C.To prevent possible injury from frostbite.
- D.To make them aware that ventilation will automatically stop.
- A.cigarette butts
- B.oily rags
- C.burner torches
- D.lighted matches
- A.well ventilated
- B.well clean
- C.in good order
- D.more room
- A.class A
- B.class B
- C.class C
- D.class D
- A.Constant inspection
- B.Keeping constant load
- C.Remaining constant temperature
- D.Varying speed
- A.the temperature
- B.the rust
- C.the pressure
- D.the humidity
- A.ana(名言集) logger
- B.bell logger
- C.alarm logger
- D.data logger
- A.a closed loop control system
- B.an open loop control system
- C.a boiler control system
- D.a steering gear control system
- A.Transducer
- B.Reducer
- C.Transformer
- D.Rectifier
- A.are less expensive
- B.require less maintenance
- C.can be started across the line
- D.offer a more effective means of controlling speed
- A.can be reset to energize the circuit
- B.should open the circuit when overloaded
- C.will burn out when an over current flow develops
- D.should short the circuit when overloaded
- A.larger than the greatest branch resistance
- B.smaller than the lowest branch resistance
- C.equal to the sum of the individual branch resistances
- D.one-half the sum of the individual branch resistances
- A.over-speed trip
- B.reverse power relay
- C.back pressure trip
- D.governor controls
- A.Frequency meter.
- B.Ohmmeter.
- C.Induction voltage regulator.
- D.Current transformer governor.
- A.paralleling
- B.series-mounting
- C.running
- D.control
- A.voltage regulator
- B.reverse power relay
- C.reverse current relay
- D.governor control switch
- A.number of turns of wire in the armature(电枢) coil
- B.number of magnetic poles
- C.strength of the magnets used
- D.output voltage
- A.check hydraulic oil levels every hour
- B.check the rams for overheating
- C.check for excessive oil leakage from rams
- D.drain water from tele-motor cylinders each watch
- 48
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Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and ______.
- A.fluid friction
- B.fluid turbulence
- C.component misalignment
- D.pressure surges
- A.an electric motor
- B.a diesel engine
- C.a compressor
- D.oil
- A.repack all valve stems
- B.lubricate it prior to use
- C.replace the foundation bolts
- D.balance the warping heads
- A.center
- B.periphery
- C.inlet
- D.upper parts
- A.lube oil
- B.fuel oil
- C.turbine oil
- D.grease
- A.aeration tanks
- B.settling tanks
- C.disinfection(消毒) agent
- D.anaerobic bacteria(厌氧细菌)
- A.clarifier
- B.oily water separator
- C.incinerator
- D.distiller
- A.expand
- B.extract
- C.increase
- D.decrease
- A.bubbling refrigerant
- B.overheating and oxidation
- C.lowered operating temperatures
- D.reducing the cloud or floc point
- A.carbon deposits on the compressor suction valves
- B.the evaporator temperature to increase
- C.rapid corrosion of the thermal expansion valve
- D.no operating problems
- A.filters
- B.separators
- C.ducted traps
- D.dehumidifiers
- A.an electric system manager
- B.a sensing bulb at the tail coil of the evaporator
- C.pressure changes in the suction line
- D.failure of the king solenoid valve
- A.head capacity to improve
- B.discharge to be reversed
- C.efficiency to decrease
- D.slippage to decrease
- A.increase the fuel oil temperature
- B.decrease the fuel oil temperature
- C.decrease the fuel oil supply pressure
- D.increase the air supply
- A.total head
- B.discharge head
- C.net positive suction head
- D.suction head
- A.the bow
- B.the stern
- C.the port side
- D.the starboard side
- A.excessive speed
- B.improper warm-up
- C.extreme misalignment
- D.inadequate lubrication
- A.precipitate(使沉淀) silica （硅石）from solution
- B.reduce corrosion in the heating coil
- C.prevent clogging and erosion in the coil
- D.maintain zero water hardness
- A.saltwater
- B.graphite(石墨)
- C.light lubricating oil
- D.heavy lubricating oil
- A.seating
- B.bed-plate
- C.entablature
- D.cylinder block
- A.air in the cooling system
- B.an overhauled water pump
- C.correct amount of coolant
- D.no air in the cooling system
- A.welcome
- B.admitted in some special sea areas
- C.prohibited
- D.acceptable
- A.using fuel oil with low cetane number
- B.a badly worn piston pin
- C.a loose flywheel key
- D.a loose bed plate bolt
- A.injection pump plungers stuck or worn
- B.low compression
- C.solenoid stuck open
- D.fuel tank too full
- A.temperature
- B.viscosity
- C.lever
- D.level
- A.An automatic
- B.A transmission
- C.A self-regulating
- D.An interlocking
- A.open
- B.close
- C.drain
- D.vent
- A.accumulator spring compression
- B.balance piston
- C.compensating(补偿) needle valve
- D.proportional piston
- 76
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The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually______.
- A.greater than the average exhaust manifold pressure
- B.less than the average exhaust manifold pressure
- C.greater at the turbine wheel than at the impeller
- D.greater at reduced engine speed
- A.the air receivers
- B.the starting valves
- C.the cylinder covers
- D.the distributors
- A.both of them are ignited by compressed air
- B.both of them are the forms of external combustion engines
- C.both of them have spark plugs
- D.the power is developed by the piston in the cylinder
