FREE NWSA Rigging and Hoisting Operations Questions and Answers

Question 1

A rigging plan requires lifting a 1,200 lb antenna using a two-leg bridle sling.
The length of each sling leg (L) is 10 feet, and the vertical height from the load to the hook (H) is 7 feet.
What is the approximate tension on each sling leg?

Accepted Answer

857 lbs

Answer

600 lbs

Answer

1,200 lbs

Answer

700 lbs

Question 2

When operating a capstan hoist to lift materials, what is the primary reason for maintaining a specific number of wraps on the drum and applying tension to the fall line?

Accepted Answer

To create sufficient friction for the hoist to grip the rope and manage the load

Answer

To increase the lifting speed of the hoist

Answer

To prevent the rope from overheating due to friction

Answer

To engage the hoist's internal braking system

Question 3

Which of the following standards, developed jointly by the Telecommunications Industry Association (TIA) and the American Society of Safety Professionals (ASSP), specifically addresses the 'means and methods' of construction and safety practices for communication structures?

Accepted Answer

ANSI/ASSP A10.48

Answer

ANSI/TIA-222

Answer

OSHA 1926 Subpart M

Answer

ANSI/TIA-322

Question 4

A gin pole is being used to lift a new tower section. Which component of the gin pole assembly is primarily responsible for attaching the entire apparatus to the existing tower structure?

Accepted Answer

The clamp assembly

Answer

The rooster head

Answer

The load block

Answer

The tag line

Question 5

When inspecting rigging equipment before a lift, a technician discovers a wire rope sling with 'birdcaging'. What is the correct course of action?

Accepted Answer

Remove the sling from service immediately

Answer

Use the sling if the birdcaging is minor

Answer

Apply lubricant and attempt to straighten the wires

Answer

Derate the sling's capacity by 50% and proceed with the lift

Question 6

According to OSHA directives regarding hoisting personnel on communication towers, if a hoist has a maximum rated load capacity of 2,000 lbs for materials, what is its maximum load capacity when used for lifting personnel?

Accepted Answer

1,000 lbs

Answer

2,000 lbs

Answer

1,500 lbs

Answer

500 lbs

A rigging plan requires lifting a 1,200 lb antenna using a two-leg bridle sling.The length of each sling leg (L) is 10 feet, and the vertical height from the load to the hook (H) is 7 feet.What is the approximate tension on each sling leg?

A rigging plan requires lifting a 1,200 lb antenna using a two-leg bridle sling.
The length of each sling leg (L) is 10 feet, and the vertical height from the load to the hook (H) is 7 feet.
What is the approximate tension on each sling leg?