ALC ALC Load Capacity & Stability

Question 1

Where is an aerial lift's rated load capacity typically displayed?

Accepted Answer

On a placard attached to the platform or machine

Answer

OSHA and ANSI require the rated load capacity to be posted directly on the lift so operators can always reference it.

Question 2

What is the primary consequence of overloading an aerial lift?

Accepted Answer

Loss of stability and increased tip-over risk

Answer

Exceeding the rated load capacity shifts the center of gravity beyond safe limits, dramatically increasing the risk of tip-over.

Question 3

What is the purpose of outriggers on a mobile aerial lift?

Accepted Answer

To widen the stability base and prevent tipping

Answer

Outriggers extend the machine's footprint to create a wider, more stable base before the platform is elevated.

Question 4

What factor determines the maximum rated load capacity of an aerial lift?

Accepted Answer

The manufacturer's engineering design and testing

Answer

The manufacturer establishes rated capacity through engineering analysis and load testing per ANSI A92 standards.

Question 5

What should an operator verify before adding materials to an aerial lift platform?

Accepted Answer

The combined weight of personnel, tools, and materials does not exceed the rated load

Answer

Operators must calculate the total platform load—people plus equipment plus materials—and confirm it stays within the rated limit.

ALC - Aerial Lift Certification Practice Test