Hazardous Materials Emergency Response Flashcards
7 cards from real F89 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 Emergency Response flashcards as text
On an NFPA 704 diamond, what does the blue quadrant indicate?
Answer: Health hazard
The blue quadrant of the NFPA 704 diamond rates the health hazard from 0 to 4.
A 'W' with a line through it in the white quadrant of an NFPA 704 diamond means the material:
Answer: Reacts unusually or dangerously with water
The crossed-out W warns that water should not be used because the material reacts dangerously with it.
Which section of a 16-section GHS Safety Data Sheet covers firefighting measures?
Answer: Section 5
Section 5 of the SDS lists suitable extinguishing media and specific fire hazards.
In the DOT Emergency Response Guidebook, which colored pages list materials by UN/NA ID number?
Answer: Yellow pages
Yellow-bordered pages index materials by their four-digit ID number.
A mercury thermometer breaks in an office. What is the FLSD's best immediate action?
Answer: Isolate the area, keep occupants out, and avoid spreading the mercury
Isolating the area prevents tracking, and vacuuming or heating would spread toxic mercury vapor.
Occupants report a strong natural gas odor on a floor. Which action should be avoided?
Answer: Operating light switches or electrical devices in the area
Electrical switches can create a spark that ignites the gas-air mixture.
Which colorless, odorless gas from incomplete combustion commonly causes headaches, dizziness, and death in buildings?
Answer: Carbon monoxide
Carbon monoxide has no color or odor and binds to hemoglobin, causing poisoning.
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