Social Studies, 14.01.2020 06:31 andrearamos12oxdie5
The signal man assisting the crane operator has his forearm vertical, forefinger pointing up, and moves his hand in a small horizontal circle. this is the signal to
a. extend
b. lower
c. hoist
d. swing
Answers: 1
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The signal man assisting the crane operator has his forearm vertical, forefinger pointing up, and mo...
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