Deck_2014 : Deck General - 575/2572
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| How should you signal the crane operator to raise the boom and lower the load? |
| A) Extend arm with the palm down and hold this position rigidly. |
| B) Place both fists in front of your body with thumbs pointing toward each other. |
| C) Clasp hands in front of your body. |
| D) Extend arm with the thumb pointing up, and flex the fingers in and out for as long as the load movement is desired. |
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