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 out.
B
Place both fists in front of the body with the thumbs pointing upward.
C
With forearm vertical and forefinger pointing up, move hand in small horizontal circles.
D
Extend arm with fingers closed and point thumb upward.
E
İlgili Sorular
You will be entering the Mystic River in Connecticut. What is the current at the Highway Bridge at ...Sidewise force of the propeller tends to throw a vessel's stern to the right or left, depending on ...As the displacement of a vessel increases, the detrimental effect of free surface _____________.BOTH INTERNATIONAL & INLAND A vessel nearing a bend where other vessels may be obscured shall sound ...INLAND ONLY Only law enforcement vessels are permitted to show __________.