433A Rigging and Hoisting

Question 1

What does WLL stand for when marked on rigging equipment?

Accepted Answer

Working Load Limit

Answer

Weight Loading Limitation

Answer

Wire Load Level

Answer

Winding Load Leverage

Question 2

Which hitch configuration provides the highest effective WLL when using a single-leg sling?

Accepted Answer

Basket hitch

Answer

Choker hitch

Answer

Vertical hitch

Answer

Double wrap choker hitch

Question 3

When two sling legs form a 120° included angle, what is the approximate tension in each leg relative to the total load weight?

Accepted Answer

Equal to the total load weight

Answer

Half the total load weight

Answer

0.87 times the total load weight

Answer

Twice the total load weight

Question 4

What is the minimum number of wire rope clips (Crosby-type) required when forming an eye in 1/2" (13 mm) diameter wire rope?

Accepted Answer

3

Answer

2

Answer

4

Answer

5

Question 5

A synthetic web sling whose red warning core is visible through the outer jacket should be:

Accepted Answer

Removed from service immediately

Answer

Used only for light lifts under 500 kg

Answer

Tagged and monitored but kept in service

Answer

Repaired with industrial tape before reuse

Question 6

What is the primary purpose of attaching a tagline to a suspended load?

Accepted Answer

To control the load's rotation and prevent uncontrolled swinging

Answer

To provide a secondary load path if the main sling fails

Answer

To attach the load to the crane hook

Answer

To measure the weight of the suspended load

Question 7

According to CSA standards, what is the maximum recommended included angle between two sling legs for most rigging lifts?

Accepted Answer

120°

Answer

60°

Answer

90°

Answer

150°