单选题In the cargo winch, spur reduction gearing transfers the motor drive to ().Athe toping lightBthe board brakeCthe fail-safeDthe barrel shaft

单选题
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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If an attempt is made to hoist a load that exceeds the capacity of an electric winch,an overload safety device causes a circuit breaker to cut off the current to the winch motor ______.A.when the line pull reaches the rated winch capacityB.after the line pull exceeds the rated winch capacityC.after a short build-up of torqueD.immediately

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单选题杂货船可以用自己的吊杆装卸货物。()AGeneral cargo ships may load and discharge by her own winch.BBulk carriers may handle cargo by her own derricks.CGeneral cargo ships may load and discharge by her own derricks.DGeneral cargo ships may load and discharge by cranes.

单选题Mechanical gearing of deck machinery such as the windlass or boat hoists should().Abe open to view so,if a foreign object gets in the gearing,the operator can immediately stop the machineryBhave a guard over the gearingCbe painted a contrasting color from the base color in order to call attention to the gearingDnot be operated if there is any crew within 10 feet of the machinery

单选题The riding pawl is().Aa safety interlock in a cargo winch that prevents the runner from overspeedingBa stopper that prevents the anchor cable from running free if the cable jumps the wildcatCthe device that locks the deck lashings of the Peck and Hale systemDthe lug that rides on the eccentric rib and engages the locking ring on the windlass

单选题四则运算指令包括加法指令是(),减法指令是(),乘法指令是(),除法指令是()。AADD/SUB/MOT/DIVBSUB/ADD/MOT/DIVCMVL/ADD/SUB/DIVDDIV/ADD/SUB/MVL

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单选题A “stopper” is().Aa short length of line used for temporarily holding another lineBa snatch block for handling a topping liftCan engine order telegraphDthe brake on a cargo winch

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