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
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
相关考题：
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
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
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
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
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
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
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
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
The jumbo boom can （）.A、lift heavy cargoB、load and unloadC、join ropes togetherD、lift light cargo
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（）.Araise the boomBraise the hookCraise the boom and hookDcheck the boom stop
单选题A diesel engine is supercharged in order to（）Alower the no-load RPMsBprovide more air for combine with the fuelCincrease the no-load RPMsDprovide more fuel combine with the air
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.AwhyBwhichCin whichDon which
单选题On a ship’s crane，the load chart relates the allowable load to the combination of the boom length and（）.Awinch speedBboom strengthCload radiusDcable strength
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（）.ALCGBtransverse momentCrighting momentDinclining moment
单选题How should you signal the crane operator to lower the boom and raise the load（）.AExtend arm and point finger in the direction to move the boomBExtend arm with thumb pointing downward and flex fingers in and outCWith forearm vertical and forefinger pointing up，move hand in small horizontal circlesDWith arm extended downwards and forefinger pointing down，move hand in small horizontal circles
单选题The Master or person in charge of a ship shall ensure the crane record book shows the（）.ADate and description of each failureBAverage load in pounds for each usageCTotal number of lifts for each usageDAll of the above
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（）.Awinch speedBboom strengthCload radiusDcable strength
单选题The load chart of a crane enables the operator to combine the load radius with boom length to determine the（）.Amaximum counter weight requiredBminimum horsepower requiredChoist rope strengthDallowable load
单选题How should you signal the crane operator to raise the boom and lower the load?（）.AExtend arm with the palm down and and hold this position rigidlyBPlace both fists in front of the body with the thumbs pointing outward each otherCClasp hands in front of you bodyDExtend arm with the thumb pointing up, and flex the finger s in and out for as long as the load movement is desired
单选题The boom indicator tells the operator at what angle the boom is compared to the（）.Ahorizontal position of the boomBvertical position of the boomChorizontal position of the load being liftedDvertical position of the load being lifted
单选题The load chart of a ship crane enables the operator to combine the load radius with boom length to determine the（）.Amaximum counter weight requiredBminimum horsepower requiredChoist rope strengthDallowable load
单选题（）is not a static load.AActual weight of the ship's structure，outfitting，equipment and machineryBBallast load（weight）CCargo loadDSlamming and sloshing load
单选题With a given load on the cargo hook，tension in a single span topping lift（）.Aincreases as the boom's angle to the horizontal increasesBis at a maximum when the boom is at a 45° angle to the horizontalCincreases as the boom's angle to the horizontal decreasesDdecreases as the boom's angle to the horizontal decreases
单选题What does “evel-luffing” accomplish during crane operations（）.AIt prevents the load from swinging when the boom level is adjustedBLess power is needed when topping the boom with a load on the hookCIt maintains the height of the load above the deckDAll of the above
单选题0n a crane ,the boom indicator tells the operator what angle the boom angle is compared to the（）.Avertical positionBhorizontal positionCboom stop angleDminimum radius angle
单选题The best way to determine if a load is within maximum lift limits is to use（）.Aa boom angle indicatorBa load weight indicatorCmaterial invoices for shipping weightsDprior experience with similar lifts
单选题On a ship crane，the load chart relates the allowable load to the combination of boom length and（）.Aboom angleBboom strengthCload radiusDcable strength