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单选题
Topping wires fix the height of the derricks and （） to the deck may be used to prevent fore and aft movement.
A
stays
B
winches
C
barrels
D
brakes
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单选题船舶离港之前，所有的吊杆必须纵向收放好。（）A
Before leaving the harbour, all derricks must be stowed.B
After leaving the harbour, all derricks must be stowed fore and aft.C
Before leaving the harbour, all derricks must be stowed fore and aft.D
Before leaving the harbour, all heavy derricks must be stowed fore and aft.
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单选题A flounder plate，on a topping lift，is（）.A
a fairlead blockB
a swivel pin for the topping lift blockC
a triangular steel plate with a hole at each cornerD
the lower block of a multiple part topping lift
考题
单选题The cargo gear includes（）.A
derrick, winches, cargo ropes and wiresB
derricks, windlass, capstanC
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考题
单选题Topping wires fix the height of the derricks and （） to the deck may be used to prevent fore and aft movement.A
staysB
winchesC
barrelsD
brakes
考题
单选题我们每航次拆卸一次吊杆。（）A
We dismantle the jumbo boom twice a voyage.B
We dismantle the derricks once a voyage.C
We examine the derricks once a voyage.D
We dismantle the heavy derricks once a voyage.
考题
单选题（） may be fitted for operating the derrick topping lift (the wire which adjusts the derrick height).A
A capstanB
A holdC
A warp endD
A mooring drum
考题
单选题opes or wires attached to derricks to prevent them from swinging during cargo handling operations are（）.A
PreventersB
Side ropesC
StaysD
Guide lines
考题
单选题What does “evel-luffing” accomplish during crane operations（）.A
It prevents the load from swinging when the boom level is adjustedB
Less power is needed when topping the boom with a load on the hookC
It maintains the height of the load above the deckD
All of the above
考题
单选题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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