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单选题
What is the normal length of anchor cable used to anchor a vessel?（）
A
An amount equal to the depth of the water
B
Two times the depth of water
C
Three to four times the depth of water
D
Five to seven times the depth of water
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单选题If the winch should fail while you are hauling in the anchor，what prevents the anchor cable from running out?（）A
Chain stopperB
Devil's clawC
Hawse ratchetD
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单选题The tension on an anchor cable increases so that the angle of the catenary to the seabed at the anchor reaches 10°. How will this affect the anchor in sandy soil?（）A
It will have no effectB
It will increase the holding powerC
It will reduce the holding powerD
It will cause the anchor to snag
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单选题A grapnel is a（）.A
device for securing a chain topping liftB
hook to prevent the anchor cable from slippingC
device used to drag for a submerged cable or lineD
type of clam bucket used for discharging bulk cargo
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单选题A sea anchor is（）.A
a heavy anchor with an extra long line used to anchor in deep waterB
a cone shaped bag used to slow down the wind drift effectC
a padeye to which the sea painter is made fastD
made of wood if it is of an approved type
考题
单选题When using the anchor to steady the bow while approaching a dock you must be aware of the fact that（）.A
the vessel will tend to take a large sheer towards the side where the anchor is downB
steering control is ineffective in trying to turn to the side opposite to that of the anchor being usedC
the anchor cable must never lead under the hullD
using an offshore anchor decreases the chances of the anchor holding
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单选题The best method of protecting that portion of a fiber anchor line nearest the anchor from chafing on the bottom is by（）.A
Using a small scope ratioB
Replacing that portion with a short length of chainC
Using a hockle to keep that portion of the anchor line off the bottomD
Using a synthetic line
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单选题If you shorten the scope of anchor cable，your anchor’s holding power（）.A
decreasesB
increasesC
remains the sameD
has no relation to the scope
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单选题Anchor capstans are used in some installation where the cable lifter rotates about a （）.A
horizontal axisB
crankshaftC
vertical axisD
camshaft
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单选题When the anchor is brought to and holding，the horizontal component of anchor cable tensions should equal the（）.A
displacement tonnageB
weight forcesC
buoyancy forcesD
environmental forces
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单选题In determining the scope of cable to be used when anchoring，what would NOT be considered?（）.A
Depth of the waterB
Character of the holding groundC
maintenance cost for the chainD
Type of anchor cable
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单选题Your vessel is not underway when（）.A
Her anchor is draggingB
Her anchor is used in dockingC
She is dredging her anchorD
Her anchor holds fast while she is swinging
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windlassesB
drumsC
capstansD
warp ends
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单选题To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.A
weight of cable to weight of vesselB
weight of cable to weight of anchorC
length of anchor to depth of waterD
length of cable to depth of water
考题
单选题The best method to stop a vessel from dragging anchor in a sand bottom is to（）.A
reduce the length of the cableB
pay out more anchor cableC
back the enginesD
swing the rudder several times to work the anchor into the bottom
考题
单选题In bad weather，what length of chain should be used with a single anchor? （）A
3 times the depth of waterB
6 times the depth of waterC
10 times the depth of waterD
15 times the depth of water
考题
单选题What color is used to indicate the last shot of anchor chain?（）A
RedB
WhiteC
BlueD
Yellow
考题
单选题What is the bow type anchor shackle primarily used for（）.A
Chain to chain connectionsB
Chain to anchor connectionsC
Kenter link to anchor connectionsD
Wire rope connections
考题
单选题What is the principle behind dynamic braking as used on an anchor windlass?（）A
Electrical loadingB
Mechanical distributionC
Compressibility of airD
Mechanical friction
考题
单选题What is the normal length of anchor cable used to anchor a vessel?（）A
An amount equal to the depth of the waterB
Two times the depth of waterC
Three to four times the depth of waterD
Five to seven times the depth of water
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