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The load chart of a ship crane enables the operator to combine the load radius with boom length to determine the ______．
A.Maximum counter weight required
B.Minimum horsepower required
C.Hoist rope strength
D.Allowable load
参考答案
更多 “ The load chart of a ship crane enables the operator to combine the load radius with boom length to determine the ______．A.Maximum counter weight requiredB.Minimum horsepower requiredC.Hoist rope strengthD.Allowable load ” 相关考题
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On a crane, the boom indicator tells the operator what angle the boom angle is compared to the ______.A.vertical positionB.horizontal positionC.boom stop angleD.minimum radius angle
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The document that certifies the correctness of the load line marks on a ship is called the ______.A.Certificate of InspectionB.Load line certificateC.Certificate of DocumentationD.SOLAS Certificate
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The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward．This is the signal to ______．A.raise the boomB.raise the hookC.raise the boom and hookD.check the boom stop
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How should you signal the crane operator to lower the boom and raise the load ________．A.Extend arm and point finger in the direction to move the boomB.Extend arm with thumb pointing downward and flex fingers in and outC.With forearm vertical and forefinger pointing up，move hand in small horizontal circlesD.With arm extended downwards and forefinger pointing down，move hand in small horizontal circles
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The Master or person in charge of a ship shall ensure the crane record book shows the ______．A.Date and description of each failureB.Average load in pounds for each usageC.Total number of lifts for each usageD.All of the above
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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
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When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to ______．A.winch speedB.boom strengthC.load radiusD.cable strength
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Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the mid-ship section results in the load’s ______.A.LCGB.longitudinal momentC.righting momentD.inclining moment
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The jumbo boom can （）.A、lift heavy cargoB、load and unloadC、join ropes togetherD、lift light cargo
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单选题The signal man assisting a crane operator has his arm extended with his fingers closed and thumb pointing upward. This is the signal to（）.A
raise the boomB
raise the hookC
raise the boom and hookD
check the boom stop
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单选题A diesel engine is supercharged in order to（）A
lower the no-load RPMsB
provide more air for combine with the fuelC
increase the no-load RPMsD
provide more fuel combine with the air
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单选题The diesel engine consumes considerably less fuel than the steam engine for equal output, （） enables a motor-ship to load more cargo.A
whyB
whichC
in whichD
on which
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单选题On a ship’s crane，the load chart relates the allowable load to the combination of the boom length and（）.A
winch speedB
boom strengthC
load radiusD
cable strength
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单选题Aboard a ship，multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s（）.A
LCGB
transverse momentC
righting momentD
inclining moment
考题
单选题How should you signal the crane operator to lower the boom and raise the load（）.A
Extend arm and point finger in the direction to move the boomB
Extend arm with thumb pointing downward and flex fingers in and outC
With forearm vertical and forefinger pointing up，move hand in small horizontal circlesD
With arm extended downwards and forefinger pointing down，move hand in small horizontal circles
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单选题The Master or person in charge of a ship shall ensure the crane record book shows the（）.A
Date and description of each failureB
Average load in pounds for each usageC
Total number of lifts for each usageD
All of the above
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单选题When a cargo boom or crane is rated at varying capacities，there will be a table at the controls which relates safe working load to（）.A
winch speedB
boom strengthC
load radiusD
cable strength
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单选题The load chart of a crane enables the operator to combine the load radius with boom length to determine the（）.A
maximum counter weight requiredB
minimum horsepower requiredC
hoist rope strengthD
allowable load
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单选题How should you signal the crane operator to raise the boom and lower the load?（）.A
Extend arm with the palm down and and hold this position rigidlyB
Place both fists in front of the body with the thumbs pointing outward each otherC
Clasp hands in front of you bodyD
Extend arm with the thumb pointing up, and flex the finger s in and out for as long as the load movement is desired
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单选题The boom indicator tells the operator at what angle the boom is compared to the（）.A
horizontal position of the boomB
vertical position of the boomC
horizontal position of the load being liftedD
vertical position of the load being lifted
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单选题The load chart of a ship crane enables the operator to combine the load radius with boom length to determine the（）.A
maximum counter weight requiredB
minimum horsepower requiredC
hoist rope strengthD
allowable load
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单选题（）is not a static load.A
Actual weight of the ship's structure，outfitting，equipment and machineryB
Ballast load（weight）C
Cargo loadD
Slamming and sloshing load
考题
单选题With a given load on the cargo hook，tension in a single span topping lift（）.A
increases as the boom's angle to the horizontal increasesB
is at a maximum when the boom is at a 45° angle to the horizontalC
increases as the boom's angle to the horizontal decreasesD
decreases as the boom's angle to the horizontal decreases
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0n a crane ,the boom indicator tells the operator what angle the boom angle is compared to the（）.A
vertical positionB
horizontal positionC
boom stop angleD
minimum radius angle
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单选题The best way to determine if a load is within maximum lift limits is to use（）.A
a boom angle indicatorB
a load weight indicatorC
material invoices for shipping weightsD
prior experience with similar lifts
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单选题On a ship crane，the load chart relates the allowable load to the combination of boom length and（）.A
boom angleB
boom strengthC
load radiusD
cable strength
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