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单选题
Worm geared automatic mooring winches are （） as the multi-start feature reduces the advantage of worm gear iethe high gear radio.
A
popular
B
common
C
in lead position
D
uncommon
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很多船上在每个舱口处都有两个吊杆及两台起货机。（）A、Many ships have two derricks at each hatch.B、Many ships have two winches at each hatch.C、Many ships have two derricks and two winches at each hatch.D、Many ships have two derricks and two winches at each hatch cover.
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考题
单选题The majority of automatic mooring winches are spur geared to improve the backward efficiency of the gear train for rendering（）A
spur gearedB
screw gearedC
worm gearedD
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考题
单选题The spur geared mooring winches have advantages over worm geared ones in（）A
higher efficiency of the gear train while reversingB
the higher gear ratioC
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higher recovering speed
考题
单选题Get ready the mooring machinery, mooring lines and the gangway for （）.A
loading cargoB
arrival in portC
departure from portD
unloading cargo
考题
单选题In an automatic mooring winches, the wire is paid off the barrel at（） a tension and is recovered at（）tension.A
lower；igherB
maximum；higherC
predetermined minimum；higherD
predetermined maximum；lower
考题
单选题A mooring system that results in a spread system without anchor buoys is called a（）.A
permanent chasing systemB
wire rope mooring systemC
shepherd's crook mooring systemD
spring buoy mooring system
考题
单选题Mooring winches are often combined with （） units so that one prime mover drives both.A
craneB
hatch coverC
windlassD
steering gear
考题
单选题As matter of fact, the damage to the winches was due to（）.A
insufficiency of packagingB
inherent vice of the cargoC
improper stowageD
rough handling
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单选题In automatic （） the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension.A
cranesB
windlassC
capstansD
mooring winches
考题
单选题The duty of a deck winch is to lift and lower a load by means of a fixed rope on （）.A
a warp endB
a mooring winchC
a worm gearD
a barrel
考题
单选题An anchor winch should be equipped with mechanical brakes capable of holding（）.A
half the breaking strength of the mooring lineB
the full breaking strength of the mooring lineC
the maximum expected tension of the mooring lineD
50% over the working tension of the mooring line
考题
单选题Worm geared automatic mooring winches are （） as the multi-start feature reduces the advantage of worm gear iethe high gear radio.A
popularB
commonC
in lead positionD
uncommon
考题
单选题The indication of a slipping anchor is a(n)（）.A
decrease in mooring line lengthB
increase in the opposite amperageC
increase in the opposite line tensionD
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考题
单选题A storm is forecast for the area where your vessel is moored. For its safety you should put （）.A
more slack in the mooring linesB
a strain on the mooring linesC
chafing gear on the mooring linesD
grease on the mooring lines
考题
单选题A “spring line” is（）.A
any wire rope used for mooringB
a fire-warpC
a mooring line running diagonally to the keelD
a mooring line perpendicular to the keel
考题
单选题（） shall be continuously powered and shall have an automatic changeover to a stand by power supply in case of loss of normal power supply.A
Cooling systemB
Alarm systemC
The air conditioning installationD
The mooring equipment
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