Refer to the Diagram; Which of the signals shown would the rigger give to the crane operator to raise the boom?

Refer to the Diagram; Which of the signals shown would the rigger give to the crane operator to raise the boom?

0 Likes
en English
ar Arabiczh-CN Chinese (Simplified)nl Dutchen Englishfr Frenchde Germanit Italianpt Portugueseru Russianes Spanish