更多"When retrieving the survival craft，"的相关试题:
[单项选择]The limit switches on a ships survival-craft winch system（）.
A. stop the winch just before the craft reaches the final stowage position
B. limit the amount of cable on the drum
C. limit the ascent rate
D. stop the winch in case the craft weighs too much
[单项选择]What happens to the pulling power of a winch when retrieving wire rope?（）
A. It increases
B. It decreases
C. It remains the same
D. It fluctuates，depending on the gearing system
[单项选择]When a survival craft drill is held，the person in charge must insure that（）.
A. all survival craft are lowered to the water，launched，and operated for thirty minutes
B. all davits used for launching liferafts are operated
C. each emergency position indicating radio beacon is tested for thirty minutes
D. the helicopter pad landing lights are operating in a quick-flashing mode
[单项选择]An anchor winch should be equipped with mechanical brakes capable of holding（）.
A. half the breaking strength of the mooring line
B. the full breaking strength of the mooring line
C. the maximum expected tension of the mooring line
D. 50% over the working tension of the mooring line
[单项选择]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
[单项选择]What’s wrong（）the winch?
A. for
B. with
C. to
D. on
[单项选择]We had the winch（）last year.
A. to overhaul
B. overhauling
C. overhauled
D. overhaul
[单项选择]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
[单项选择]If a hydraulic pump on a winch accidentally stops while hoisting，the load will stay suspended because（）.
A. a check valve will close that prevents reverse circulation
B. a centrifugal counterweight counteracts the force of gravity
C. the electric pump motor will cut out
D. the control lever will move to the stop position
[单项选择]If the winch should fail while you are hauling in the anchor，what prevents the anchor cable from running out（）.
A. Chain stopper
B. Devil's claw
C. Hawse ratchet
D. Riding pawl
[单项选择]Running an electric winch at slow speed over a long period of time causes（）.
A. the speed to be retarded by the friction brake
B. a load to go downward at full speed
C. the circuit breaker to turn off
D. the resistors to overheat and eventually burn out
[单项选择]（） is not one of the winch controls.
A. a master controller or switchbox
B. a group of relays
C. contactors
D. a solenoid brake
[单项选择]The revolving drum of a winch used to haul lines is called a（）.
A. bull gear
B. gypsyhead
C. spanner
D. wildcat
[单项选择]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
[单项选择]In automatic （） the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension.
A. cranes
B. windlass
C. capstans
D. mooring winches
[单项选择]If an electric cargo winch is being used to lift a draft of cargo and the engine room loses all power，which will occur?（）
A. A pawl，forced by a spring mechanism，will engage the teeth of the bull gear and hold the load
B. An electromagnetic brake will hold the load where it is suspended
C. The load will fall rapidly to the deck unless the foot brake is engaged
D. The load will slowly lower to the deck under control of the drag of the winch motor
[单项选择]The winch at Hatch No.3 is（）trouble.
A. at
B. in
C. on
D. over
