NWSA - National Wireless Safety Alliance Hoisting and Rigging Practices Questions and Answers

Question 1

According to the ANSI/ASSP A10.48 standard, which of the following is a mandatory component of a rigging plan for a communication structure lift?

Accepted Answer

Operational and non-operational construction loads and limitations

Answer

The brand name of the hoist being used

Answer

The names of all ground crew personnel

Answer

The weather forecast for the next 48 hours

Question 2

A signal person is communicating with a crane operator to swing the boom to the left. What is the standard OSHA hand signal for this command?

Accepted Answer

Arm extended horizontally, with the index finger pointing in the direction of the swing.

Answer

Both arms extended horizontally, swinging them back and forth.

Answer

Forearm vertical, index finger pointing up, making small circles.

Answer

Arm extended, thumb pointing down, flexing fingers in and out.

Question 3

During a pre-use inspection of a gin pole, a competent person discovers a crack in a weld on one of the leg sections. What is the correct course of action?

Accepted Answer

Immediately remove the gin pole from service until it can be inspected by a qualified person and properly repaired.

Answer

Note the crack in the inspection log and proceed with the lift if the crack is small.

Answer

Apply a temporary field weld over the crack and continue with the operation.

Answer

Reduce the day's planned load capacity by 50% as a safety precaution.

Question 4

A rigging crew is preparing to lift a new antenna array that weighs 450 lbs. The synthetic rope being used has a manufacturer's breaking strength of 5,000 lbs. What is the factor of safety for the rope in this lift?

Accepted Answer

11.1:1

Answer

5:1

Answer

8:1

Answer

10:1

Question 5

Which of the following personnel is ultimately responsible for developing and approving a 'special engineered lift' that falls outside the gin pole's standard load chart?

Accepted Answer

A Qualified Professional Engineer

Answer

The Competent Rigger

Answer

The Site Foreman

Answer

The Tower Owner

Question 6

A capstan hoist is being used to lift materials up a tower. What is a primary safety prohibition regarding the use of this type of hoist?

Accepted Answer

Using it for hoisting personnel

Answer

Using it to lift loads heavier than 100 lbs

Answer

Operating it in wet weather conditions

Answer

Running the engine for more than 30 minutes continuously