NCCER Crane Signal Person & Communication

Question 1

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

Accepted Answer

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

Answer

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.

Question 2

Under OSHA regulations, a signal person is required when:

Accepted Answer

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

Answer

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

Question 3

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

Accepted Answer

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

Answer

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

Question 4

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

Accepted Answer

Dog everything — cease all crane operations

Answer

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

Question 5

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

Accepted Answer

The designated signal person

Answer

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

(NCCER Crane) National Center for Construction Education and Research Crane Certification Practice Test