Hazardous Materials Response Flashcards
7 cards from real Firefighter 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 Response flashcards as text
What does the orange section of a NFPA 704 diamond placard represent?
Answer: Instability/reactivity
The orange (right) quadrant of the NFPA 704 diamond indicates instability or reactivity.
A four-digit number on an orange panel of a transport vehicle identifies what?
Answer: The UN/NA material ID number
The four-digit number is the UN/NA identification number used to look up the material in the ERG.
What is the primary purpose of establishing a decontamination corridor at a hazmat incident?
Answer: To prevent spread of contaminants from the hot zone
The decontamination corridor removes contaminants from personnel and equipment leaving the hot zone.
Which control zone is the contaminated area requiring the highest level of PPE?
Answer: Hot zone
The hot zone is the area of immediate contamination requiring maximum protective equipment.
What does a DOT placard with the number 3 and a flame symbol indicate?
Answer: Flammable liquid
Hazard Class 3 with a flame represents flammable liquids.
When approaching a hazmat scene, responders should position apparatus how relative to the wind?
Answer: Upwind and uphill
Positioning upwind and uphill keeps responders away from vapors and runoff.
What is the recommended first action upon recognizing a potential hazmat release?
Answer: Isolate the area and deny entry
Isolating the area and denying entry protects responders and the public until the hazard is identified.