Signal Person & Communication Flashcards

According to OSHA 29 CFR 1926.1419, which qualification must a signal person demonstrate?

Answer: The ability to properly communicate with the operator using the established signaling method

OSHA 1926.1419 requires the signal person to know and properly use the signaling method in use and to have clear view of the load and operator.

Under OSHA regulations, a signal person is required when:

Answer: The operator does not have a clear and direct view of the load or the load's path of travel

OSHA 1926.1419(a) mandates a signal person when the operator cannot clearly see the load or its travel path.

The hand signal for an emergency stop in crane operations is:

Answer: Both arms extended horizontally, palms down, waving rapidly side to side

Emergency stop is signaled with both arms extended, palms down, waving rapidly laterally to convey immediate danger.

What does clasping both hands together in front of the body signal to the crane operator?

Answer: Dog everything — cease all crane operations

Clasping hands together ('dog everything') tells the operator to stop all movement and hold position until further signals are given.

During a lift, who is the ONLY person authorized to give movement signals to the crane operator?

Answer: The designated signal person

Only the designated signal person may give motion signals to the operator; however, any worker may give an emergency stop signal.

The standard hand signal to hoist (raise) a load is:

Answer: Forefinger pointing up with forearm vertical, moving hand in small horizontal circles

The hoist signal is a forefinger pointing upward with the forearm vertical, moving the hand in small horizontal circles.

If a signal person loses sight of the load during an active lift, they should:

Answer: Signal an immediate stop until visibility of the load is regained

Loss of visual contact with the load requires an immediate stop signal because the signal person cannot safely direct crane movement.