In relation to cargo gear，what does SWL mean?（）.
A . Safe working load
B . Ship's working lift
C . Starboard wing lift
D . Stress，weight，load
相似题目
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In using reduction gears to obtain efficient propeller speeds, （）.
A . they must be located at the after end of the engine
B . they can only be used with one engine at a time
C . they eliminate the need for controllable pitch propellers
D . they are connected to the engine with a flexible coupling
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A magnetic strainer is used in the diesel engine reduction gear oil system to remove small particles of（）.
A . water
B . babbitt
C . iron or steel
D . acid
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A cargo hold has been determined to have a relative humidity of 80% and a dry bulb temperature of 80 ℃ and a dry bulb temperature of 85℃.When the hold is sealed and the dry bulb temperature decreases, the relative humidity in the space will （）
A . decrease
B . increase
C . decrease to zero
D . remain unchanged
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Vessel shall possess International Cargo Gear Certificates （） duration of Charter Party showing winches and derricks in order.
A . validity in
B . valid for
C . effective at
D . effectiveness for
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Pitting in the area close to the pitch line and on the same end of each gear tooth of a reduction gear unit would be caused by （）
A . corrosion on the gears
B . excessive gear speed
C . dirt in the oil
D . misalignment of the gear
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Defective timing gear in a diesel engine may lead to （）.
A . smoky exhaust
B . starting failure
C . overload
D . over speed
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On your vessel，a wire rope for the cargo gear shows signs of excessive wear and must be replaced. In ordering a new wire for this 10-ton boom，what safety factor should you use?（）
A . Three
B . Five
C . Six
D . Seve
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Inflammable cargo（）in the holds adjacent to the engine room.
A . shall never be stowed
B . may be stowed
C . can be stowed
D . should be stowed
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The function of the hydraulic telemotor transmitter used in an electro-hydraulic steering gear system is to （）.
A . transmit the rudder angle to the bridge indicator
B . prevent the control linkage from striking the stops when hard over
C . automatically purge all entrained air from the system
D . send hydraulic signals to the receiving unit
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The oil in a cargo winch gear box should be sampled periodically to （）.
A . prevent the gear box from leaking
B . prevent the oil from becoming inflammable
C . make sure it has not become contaminated
D . make sure the motor bearings are lubricated
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Sociolinguistics is the study of language in relation to society.
A . 正确
B . 错误
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When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to（）.
A . winch speed
B . boom strength
C . load radius
D . cable strength
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In relation to cargo gear,what does SWL mean?（）.
A . Safe working load
B . Ships working lift
C . Starboard wing lift
D . Stress , weight , load
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In the cargo winch, spur reduction gearing transfers the motor drive to （）.
A . the toping light
B . the board brake
C . the fail-safe
D . the barrel shaft
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Winch gears must be maintained in proper alignment to prevent （）.
A . overheating of the lube oil
B . over-speeding of the motor
C . wear on the braking system
D . damage to the teeth
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According to regulations，access to a cargo pumproom in a tanker carrying grades C or D liquid cargo shall be（）.
A . from areas equipped with power ventilation
B . only from enclosed areas free from sources of vapor ignition
C . from the open deck
D . from within the vessel
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Loading cargo operation in hold No.3 stopped owing to（）.
A . gangs employed
B . windlass trouble
C . gangs unavailable
D . shortage of navigational chart
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It is permissible to place an eye splice in wire rope used as cargo gear providing the splice is made using（）.
A . two tucks with whole strands and one tuck with one-half strand
B . three tucks with whole strands and two tucks with 1/2 the wire cut from the tucking strand
C . three tucks with whole strands
D . two tucks with whole strands and three tucks with half strand
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After fitting back in place the gear wheels, don’t forget to （） them.
A . fulfill
B . eliminate
C . grease
D . bend
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（）cargoes in IMSBC code are those that are likely to liquefy.
A . Group A
B . Group B
C . Group C
D . Group D
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In an electro-hydraulic steering gear, any change in relative position between the synchronous receiver and the follow-up gear will result in（）
A . the pump going to full stroke
B . closing of the six-way valve
C . driving the rams up against the stops
D . a corresponding slowing or increasing of the pumped flow rate
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In Taine’s view, race is closely related to _____.
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In an unusually warm winter, the Snowy Mountains receives relatively little snow and ski resorts suffer a severe downturn in bookings. In response, the resorts order less ski gear from their suppliers. The ski gear suppliers are suffering due to ________.
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Hydraulically, servo-operated, automatic, change over valves, utilized in a two ram hydraulic steering gear, serve to .
A.allow an alternate main pump to start in the fully loaded condition thus developing immediate full torque
B.prevent either main pump from being hydraulically motored when idle by cross pressure flow
C.prevent both units from operating simultaneously which could result in doubling the flow of oil and pressure leading to over pressurization of the system
D.all of the above
