CHST Crane and Rigging Safety 5

Question 1

What is the purpose of a tag line during a crane lift?

Accepted Answer

To control load swing and rotation without personnel being in the load path

Answer

Tag lines allow ground workers to guide and stabilize a suspended load while keeping them out of the hazardous zone directly under or near the load.

Question 2

Which rigging configuration reduces a sling's rated capacity the most?

Accepted Answer

Basket hitch at 30-degree included angle

Answer

As the sling angle decreases from vertical, horizontal tension increases; a very narrow basket hitch (30° included angle) produces the greatest reduction in effective capacity.

Question 3

Under OSHA 29 CFR 1926.1427, who is required to be a Qualified Rigger?

Accepted Answer

Personnel who attach or detach rigging to a load

Answer

OSHA 1926.1427 requires that only qualified riggers attach or detach rigging from a load, ensuring personnel have the knowledge and experience to rig safely.

Question 4

What does a crane's 'derating' mean in the context of crane operations?

Accepted Answer

Reducing the rated capacity due to configuration, attachment, or site conditions

Answer

Derating means the crane's capacity is officially reduced below the manufacturer's chart value to account for conditions such as soft ground, outrigger restrictions, or non-standard configuration.

Question 5

A crane operator receives conflicting hand signals from two workers during a lift. What should the operator do?

Accepted Answer

Stop the crane and do not move until one designated signal person is identified

Answer

OSHA requires only one designated signal person per lift; receiving conflicting signals is a stop-work condition until a single signal person is confirmed.

CHST - Construction Health and Safety Technician Practice Test

CHST - Construction Health and Safety Technician Practice Test

CHST Crane and Rigging Safety 5