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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；igher
B
maximum；higher
C
predetermined minimum；higher
D
predetermined maximum；lower
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考题
单选题Chafing gear should be placed（）.A
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at the bitter ends of all standing riggingC
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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
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maximum；higherC
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cargo elevatorsB
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单选题What does the term end-for-end refer to in regard to a wire towing hawser（）.A
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craneB
hatch coverC
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steering gear
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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
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单选题Vessels lying afloat at buoys for more than 24 hours should use anchor chain for（）and insurance wire for（）.A
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单选题（） may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).A
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考题
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commonC
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考题
单选题（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.A
Ring typeB
Fork typeC
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考题
单选题When the power is shut off, the wire（）A
becomes slackB
can not be paid out unless the brake is overhauled or recover wire unless manually operatedC
will be let out because the brake is out of workD
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考题
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考题
单选题A “spring line” is（）.A
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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
考题
单选题Which statement concerning an automatic towing engine is FALSE? （）A
It automatically maintains tow line tensionB
It prolongs the life of the hawser by distributing chafing as the hawser is paid out and taken inC
As tension on the hawser increases，more line is taken in by the automatic towing engineD
As tension on the hawser decreases，more line is taken in by the automatic towing engine
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