Hazardous Materials Awareness Flashcards
7 cards from real ACFT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Hazardous Materials Awareness flashcards as text
On an NFPA 704 diamond posted on a storage building near the ACFT site, what does the BLUE section represent?
Answer: Health hazard
The blue quadrant on the NFPA 704 diamond rates the health hazard.
What does the RED section of the NFPA 704 diamond rate?
Answer: Flammability
Red rates how easily a material will ignite and burn.
The YELLOW section of the NFPA 704 diamond indicates which hazard?
Answer: Instability/reactivity
Yellow rates instability, meaning the potential to detonate or react violently.
In the NFPA 704 system, which rating number means the MOST severe hazard?
Answer: 4
NFPA 704 ratings run from 0 (minimal) to 4 (severe).
A 'W' with a line through it in the white section of an NFPA diamond means the material:
Answer: Reacts dangerously with water
The crossed-out W warns that the material reacts unusually or dangerously with water.
Which code in the white special-hazard section of the NFPA diamond identifies an oxidizer?
Answer: OX
OX (or OXY) marks oxidizers, which can intensify fires.
An NFPA diamond on a gas storage cage shows 'SA' in the white section. What does SA indicate?
Answer: Simple asphyxiant gas
SA identifies simple asphyxiant gases, such as nitrogen or argon, that displace oxygen.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. We have not yet matched this exam's facts to an official source, so confirm fees, dates and rules with the exam body. Not reviewed by a subject-matter expert. Editorial policy