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Given the same water depth and line tension, the holding power of a 19 pound / foot wire rope mooring system in comparison to the holding power of a 90 pound / foot chain mooring system will be ______.
A.weaker
B.equal
C.greater
D.Indeterminable
参考答案
更多 “ Given the same water depth and line tension, the holding power of a 19 pound / foot wire rope mooring system in comparison to the holding power of a 90 pound / foot chain mooring system will be ______.A.weakerB.equalC.greaterD.Indeterminable ” 相关考题
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Given:WhichlineofcodemarkstheearliestpointthatanobjectreferencedbyintObjbecomesacandidatefor garbagecollection?()
A.Line16B.Line17C.Line18D.Line19
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Mooring winch should be equipped with mechanical brakes which are 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
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The major components which determine the length of catenary in a deployed anchor cable are water depth，cable tension，and ______.A.environmental forcesB.bottom conditionsC.cable weightD.water density
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All echo-sounders can measure the ______．A.Actual depth of waterB.Actual depth of water below keelC.Average depth from waterline to hard bottomD.Average depth of water to soft bottom
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In a combination chain and wire rope mooring system, the anchor chain is deployed at the anchor end of the line to ______.A.increase fatigue life of the systemB.reduce the time to retrieve the lineC.increase the holding powerD.reduce the catenary
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In determining the scope of anchor line to pay out when anchoring a small boat, one must consider the ______.A.charted depth of water onlyB.depth of water, including tidal differencesC.time and date of anchoringD.type of anchor being used
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单选题The certificate of inspection of a vessel will specify the （）.A
number of licensed personnel required on boardB
maximum load line draftC
maximum water depth for drillingD
next date for an inclining experiment
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单选题In moderate wind and current what should be the length of chain with a single anchor?（）A
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10 times the depth of the water in shallow waterC
2 times the depth of the water in poor holding groundD
8 times the depth of the water in deep water
考题
单选题The height of tide is the （）.A
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单选题In a combination chain and wire rope mooring system，the anchor chain is deployed at the anchor end of the line to（）.A
increase fatigue life of the systemB
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单选题When anchoring，good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use（）.A
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单选题What could cause a significant difference between actual chain tension and the tension measured by the tensiometer? （）A
The type of anchor and mooring line being usedB
The type of bottom in which the ship is anchoredC
A significant difference between air and water temperatureD
The chain contacting a chock or fairlead between the tensiometer and the lower swivel fairlead
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
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50% over the working tension of the mooring line
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单选题What is the holding power ratio of an anchor? （）A
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Operating tension divided by the anchor's weight in air
考题
单选题The holding power of an anchor is the（）.A
maximum sustained vertical load an anchor will resist before draggingB
maximum sustained horizontal load an anchor will resist before draggingC
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maximum sustained horizontal load an anchor will resist before the mooring line breaks
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单选题The holding power of an anchor at a given scope of cable increases when the（）.A
amount of chain lying along the bottom increasesB
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Line 16B
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考题
单选题Given the same water depth and line tension，the holding power of a 19 pound/foot wire rope mooring system in comparison to the holding power of a 90 pound/foot chain mooring system will be（）.A
weakerB
equalC
greaterD
indeterminable
考题
单选题When the current in a power transmission line is increased, the power loss （）A
increases as the square of the currentB
decreases as the square root of the currentC
remains the same, as it is independent of current flowD
increases in direct proportion as the current
考题
单选题In determining the scope of anchor line to pay out when anchoring a small boat，one must consider the（）.A
charted depth of water onlyB
depth of water，including tidal differencesC
time and date of anchoringD
type of anchor being used
考题
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actual depth of waterB
actual depth of water below keelC
average depth from waterline to hard bottomD
average depth of water to soft bottom
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单选题A liferaft which has inflated bottom-up on the water（）.A
should be righted by standing on the carbon dioxide cylinder，holding the righting straps，and leaning backwardsB
should be righted by standing on the life line，holding the righting straps，and leaning backwardsC
will right itself when the canopy tubes inflateD
must be cleared of the buoyant equipment before it will right itself
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单选题The major components which determine the length of catenary in a deployed anchor cable are water depth，cable tension，and（）.A
environmental forcesB
bottom conditionsC
cable weightD
water density
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