Question 466 Deck General

The correct answer is B) Boom. On a crane, the jib refers to the boom, which is the arm that extends out from the crane's base and is used to lift and move loads. The jib is the main structural component that supports the weight of the load being lifted. The other options, A) Topping lift, C) Liftline, and D) Control cab, are not parts of the crane that are referred to as the "jib." The topping lift is a line used to adjust the angle of the boom, the liftline is the cable that directly supports the load, and the control cab is where the crane operator controls the crane's movements.