When Selecting a Ladder

question 21

Multiple Choice

When selecting a ladder,

• A) make sure the duty rating will support the combined weight of the user and materials.
• B) make sure the ladder is of proper length to safely reach the desired height.
• C) choose nonmetal ladders for use on or around exposed electrical elements.
• D) all of the above.

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Definitions:

Facial Expressions

The movements of the facial muscles that convey emotions, intentions, or social information.

Visual Cliff

A psychological experiment designed to investigate depth perception in humans and animal species, utilizing a simulated cliff to observe responses.

Ambiguous

Open to more than one interpretation or having a double meaning, often leading to confusion or misunderstanding.

Universal Facial Expressions

Facial expressions that are recognized and understood across different cultures, such as happiness, sadness, anger, fear, surprise, and disgust.