Emergency and Fire Preparedness Flashcards
7 cards from real CHST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Emergency and Fire Preparedness flashcards as text
During a construction site emergency evacuation, who is responsible for conducting a headcount at the designated assembly area?
Answer: The designated emergency warden or supervisor
Designated emergency wardens or supervisors are assigned the responsibility of accounting for all workers at the assembly point after an evacuation.
A portable fire extinguisher rated '2-A:10-B:C' is appropriate for use on which types of fires?
Answer: Class A, Class B, and Class C fires
The 'A:B:C' rating indicates the extinguisher is suitable for ordinary combustibles (A), flammable liquids (B), and electrical fires (C).
Under OSHA 29 CFR 1926.150, when must a fire extinguisher be present at a construction site?
Answer: At all times during construction operations as a minimum standard
OSHA requires fire extinguishers to be available at all construction sites at a minimum, with additional requirements for specific hazards.
What is the primary purpose of a fire watch during hot work operations?
Answer: To monitor for ignition of fires during and after hot work
A fire watch is maintained during and for at least 30 minutes after hot work to detect and extinguish any fires that may ignite from sparks or heat.
Which factor most directly determines the required travel distance to a fire extinguisher on a construction site for Class B hazards?
Answer: The size and rating of the extinguisher relative to the hazard
OSHA requires extinguishers for Class B hazards to be placed so travel distance does not exceed 50 feet, with rating matched to hazard size.
When a worker discovers a co-worker has stopped breathing after an electrical shock, what is the FIRST action to take?
Answer: Ensure the power source is de-energized before contact
Ensuring the power source is de-energized prevents the rescuer from also becoming a victim before rendering aid.
Under OSHA's emergency action plan requirements (29 CFR 1910.38), what minimum element must be addressed regarding employee roles?
Answer: Assignment of rescue and medical duties to specific employees
OSHA requires emergency action plans to designate employees who have special roles in rescue and medical duties during emergencies.