Hand Signals & Communication Protocols Flashcards

When a signalperson loses sight of the crane operator during a lift, what is the correct action?

Answer: Signal STOP immediately and establish a relay signalperson

When direct visual contact is lost, the signalperson must signal STOP and arrange a relay system before the lift continues.

What does a signalperson do with their fist to signal 'Dog Everything'?

Answer: Place fist on top of head

The 'Dog Everything' (stop all motion) hand signal is made by placing the fist on top of the head.

During a tandem lift, how should communication be coordinated between two crane operators?

Answer: One designated signalperson directs both cranes using a pre-agreed channel

Tandem lifts require a single designated signalperson who directs both cranes to ensure coordinated, safe movement.

What hand signal instructs the operator to move the load horizontally toward the signalperson?

Answer: Arm extended, palm facing body, beckoning motion

A beckoning motion with the palm facing the body signals the operator to travel or swing the load toward the signalperson.

Which signal immediately supersedes all other signals given during a crane operation?

Answer: STOP signal from any person on site

ANSI/ASME standards state that a STOP signal must be obeyed immediately regardless of who gives it.

When using radio communication, what phrase must a signalperson say before giving a movement command?

Answer: The operator's name or crane designation first

Best practice and NCCCO protocols require the signalperson to identify the specific crane or operator before issuing any movement command over radio.

A load is swinging and the operator needs to be told to hold the load in place without setting it down. Which signal applies?

Answer: Dog Everything

'Dog Everything' tells the operator to stop all motion and hold the current position without lowering or raising.