Environmental Health & Safety Flashcards
7 cards from real RED CARD practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Environmental Health & Safety flashcards as text
What is the primary physiological mechanism by which heat stroke differs from heat exhaustion?
Answer: In heat stroke the body's thermoregulation fails and sweating stops, causing core temperature to rise dangerously
Heat stroke represents a failure of the body's cooling system — sweating ceases and core temperature can exceed 104°F, causing organ damage and death if untreated.
When conducting a Lookout, Communications, Escape routes, Safety zones (LCES) briefing, who is responsible for verifying that all crew members understand the plan?
Answer: The crew supervisor or Division Supervisor before committing the crew to the assignment
The crew supervisor must brief and verify crew understanding of LCES before deploying them on any assignment.
What environmental impact consideration must crews follow when establishing spike camps in wilderness areas?
Answer: Minimum impact practices must be used, including no-trace camping and avoiding sensitive riparian areas
Minimum impact camping practices are required on wildland fires to protect wilderness resources, including soil, water, and vegetation.
A sudden wind shift on a wildland fire is most dangerous because it:
Answer: Can instantly turn the black (burned area) into the green (unburned fuel), trapping firefighters working the line
A wind shift can place firefighters who were safely in the black directly in the path of advancing fire from a new direction with no warning.
Which of the following actions best reduces the risk of carbon monoxide (CO) poisoning at a fire camp with generator use?
Answer: Positioning generators downwind of sleeping areas and never operating them inside enclosed spaces
Generators must always be operated outdoors and downwind of sleeping or working areas because CO is odorless and can be lethal in enclosed or semi-enclosed spaces.
When a firefighter reports symptoms of nausea, headache, and confusion after working in a smoke-filled area, the first responder should prioritize:
Answer: Moving the firefighter to fresh air, monitoring vital signs, and seeking medical evaluation
Smoke inhalation causing these symptoms requires immediate removal from the toxic environment and medical evaluation to rule out CO poisoning or other toxic exposure.
What is the correct protocol for handling a used fire shelter after it has been deployed in an emergency?
Answer: Retire the shelter from service — a deployed shelter cannot be reused and must be replaced
A deployed fire shelter is compromised by heat and stress and must be replaced; it should never be reused and must be retired from service.