What is a Poison Inhalation Hazard (PIH) material?

a.Any solid poison

b.A liquid or gas that is toxic when inhaled and requires special placarding and shipping paper entries

c.Any corrosive material

d.A radioactive gas

Explanation

A Poison Inhalation Hazard material is a liquid or gas that is known or presumed to be toxic to humans when inhaled. These materials require the POISON INHALATION HAZARD or INHALATION HAZARD marking on packages and special placard requirements.

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About the CDL Exam

The CDL (Commercial Driver License) exam tests your knowledge of commercial driving rules, safety procedures, and vehicle operation. You must score 80% or higher to pass the written knowledge test. The exam covers general knowledge, air brakes, combination vehicles, and various endorsements.

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