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How should you signal the crane operator to stop?______.
A.Place both fists in front of your body with thumbs pointing pointing outward
B.With both arms extended out and palms down, move arms back and forth
C.Extend arm with the palm down and hold this position rigidly
D.Clasp hands in front of your body
参考答案
更多 “ How should you signal the crane operator to stop?______.A.Place both fists in front of your body with thumbs pointing pointing outwardB.With both arms extended out and palms down, move arms back and forthC.Extend arm with the palm down and hold this position rigidlyD.Clasp hands in front of your body ” 相关考题
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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 hoist ________．A.With forearm vertical and forefinger pointing up，move hand in small horizontal circlesB.With arm extended downwards and forefinger pointing down，move hand in small horizontal circlesC.Extend arm with fingers closed and thumb pointing upwardD.Place both fists in front of body with the thumbs pointing upward
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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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How should you signal the crane operator to move slowly ________．A.Use one hand to give any motion signal，and place the other hand motionless in front of the hand giving the motion signaB.Extend arm with the thumb pointing up，and flex the fingers in and out for as long as the load movement is desiredC.First tap your elbow with one hand and then proceed to use regular signalsD.First tap the top of your head with your fist and then proceed to use regular signals
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How should you signal the crane operator to lower the boom?______.A.With arm extended and fingers closed, point thumb downwardB.With arm extended downwards and forefinger pointing down, move hand in small horizontal circlesC.Extend arm with the palm down, and hold this position rigidlyD.With hands clasped in front of your body
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How should you signal the crane operator to stop in an emergency?______.A.Extend arm with the palm down and hold this position rigidlyB.Placed clasped hands in front of your bodyC.Extend arm and move hand rapidly right and left with the palm downD.Place both fists in front of your body with thumbs pointing pointing outward
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单选题How should you signal the crane operator to raise the boom?（）.A
Extend arm with the thumb pointing up and flex the fingers in and outB
Place both fists in front of the body with the thumbs pointing upwardC
With forearm vertical and forefinger pointing up,move hand in small horizond circlesD
Extend arm with the fingers closed and thumb upward
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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Which action(s) should the operator of a pedestal crane take if crane control is lost?（）A
Let go of both control levers and return to neutral positionB
Press the emergency stopC
Notify the mate on watchD
All of the above
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单选题How should you signal the crane operator to move slowly（）.A
Use one hand to give any motion signal，and place the other hand motionless in front of the hand giving the motion signaB
Extend arm with the thumb pointing up，and flex the fingers in and out for as long as the load movement is desiredC
First tap your elbow with one hand and then proceed to use regular signalsD
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单选题How should you signal the crane operator to swing?（）.A
With both arms extended out and palms to down, move arms back and forthB
With arm ertended downwards and forefinger pointing down,move hand in small horizontal creclesC
Extend arm and point finger in the direction to move boomD
Place both fists in front of the body with the thumbs pointing outward
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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How should you signal the crane operator to stop in an emergency?（）A
Extend arm with the palm down and hold this position rigidlyB
Place clasped hands in front of your bodyC
Extend arm and move hand rapidly right and left with the palm downD
Place both fists in front of the body with the thumbs pointing outward
考题
单选题How should you signal the crane operator to stop in an emergency?（）.A
Extend arm with the palm down and and hold this position rigidlyB
Place clasped hands in frontof your bodyC
extend arm and move hand rapidly right and left with the plam outwardD
Place both fists in front of the body with the thumbs pointing outward
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单选题How should you signal the crane operator to stop?（）.A
Place both fists in front of the body with the thumbs pointing outwardB
With both arms extended out and palms to down, move arms back and forthC
Extend arm with the palm down and and hold this position rigidlyD
Clasp hands in front of you body
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单选题How should you signal the crane operator to hoist（）.A
With forearm vertical and forefinger pointing up，move hand in small horizontal circlesB
With arm extended downwards and forefinger pointing down，move hand in small horizontal circlesC
Extend arm with fingers closed and thumb pointing upwardD
Place both fists in front of body with the thumbs pointing upward
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单选题How should you signal the crane operator to dog everthing?（）.A
Place both fists in front of the body with the thumbs pointing outward each otherB
Clasp hands in front of your bodyC
Extend arm with the palm down and and hold this position rigidlyD
Extend arm with the thumb pointing up, and flex the finger s in and out
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Immediately use all the signals at onceB
Use all the signals during the first nightC
Employ a signal every hour after abandoning ship until they are goneD
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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“How do you read?” “I read you with signal strength one”（）.A
poorB
badC
fairD
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