MFRI HAZMAT STUDY COMPREHENSIVE STUDY GUIDE
2026 FULL QUESTIONS AND SOLUTIONS GRADED A+
● - escape locations. Answer: fire behavior
● - Chain saws. Answer: Pike poles
● - structural integrity of buildings. Answer: where hot gases and smoke exhaust from a
structure.
● - Opening upper story windows or balcony doors. Answer: Opening existing roof
access doors, scuttles, or skylights
● - Hydraulic ventilation. Answer: Hydraulic ventilation
● - transition to fuel-limited conditions. Answer: flashover
● - Natural ventilation. Answer: Mechanical ventilation
● - controlling oxygen availability.. Answer: controlling oxygen availability.
● - Barometric pressure changes. Answer: Wind direction and strength
● - Building systems such as HVAC shutting down. Answer: Melting asphalt
● - Triangle cut. Answer: Kerf cut
● - Increase pressure to higher than the exterior of the structure. Answer: Increase
pressure to higher than the exterior of the structure
● - Secondary horizontal ventilation. Answer: Natural horizontal ventilation
● - Basement fires. Answer: Basement fires
● - Hydraulic ventilation. Answer: Mechanical ventilation
● - evacuate the roof promptly.. Answer: evacuate the roof promptly.
● - at or very near the lowest point of the roof when possible.. Answer: at or very near the
highest point of the roof when possible.
, ● - Clear windows of broken glass before deploying hose through them.. Answer: Clear
windows of broken glass before deploying hose through them.
● - loaded with both couplings toward the front.. Answer: loaded loose enough to fit a
gloved hand between the folds.
● - Store hose with a small amount of water in it so the inner lining doesn't dry out..
Answer: Avoid laying hose on hot pavement to dry.
● - Measure water pressure in the fire hose. Answer: Connect sections of hose together to
form one long hoseline
● - after its annual inspection.. Answer: if it has been exposed to oil.
● - fully charged before being deployed from the hose bed.. Answer: fully deployed from
the hose bed before charging the line.
● - Triple layer roll. Answer: Straight roll
● - for drafting from a static water source.. Answer: for drafting from a static water source.
● - Always load large diameter hose with couplings toward the back of the hose bed..
Answer: Remove kinks and twists from the hose when forming a loop.
● - Attack hose. Answer: Supply hose
● - Combination load. Answer: Flat load
● - Straight roll. Answer: Twin donut roll
● - there is an increased risk of flashover.. Answer: the fire is too large to be controlled by
handlines.
● - It puts less weight on the shoulders of the firefighters carrying the hose.. Answer:
The hose does not drag on the ground.
● - Gate-valved hydrant. Answer: Dry-barrel hydrant
● - Reducer. Answer: Reducer
● - Cellar nozzle. Answer: Smooth bore nozzle
● - tighten or loosen coupling connections.. Answer: tighten or loosen coupling
connections.
2026 FULL QUESTIONS AND SOLUTIONS GRADED A+
● - escape locations. Answer: fire behavior
● - Chain saws. Answer: Pike poles
● - structural integrity of buildings. Answer: where hot gases and smoke exhaust from a
structure.
● - Opening upper story windows or balcony doors. Answer: Opening existing roof
access doors, scuttles, or skylights
● - Hydraulic ventilation. Answer: Hydraulic ventilation
● - transition to fuel-limited conditions. Answer: flashover
● - Natural ventilation. Answer: Mechanical ventilation
● - controlling oxygen availability.. Answer: controlling oxygen availability.
● - Barometric pressure changes. Answer: Wind direction and strength
● - Building systems such as HVAC shutting down. Answer: Melting asphalt
● - Triangle cut. Answer: Kerf cut
● - Increase pressure to higher than the exterior of the structure. Answer: Increase
pressure to higher than the exterior of the structure
● - Secondary horizontal ventilation. Answer: Natural horizontal ventilation
● - Basement fires. Answer: Basement fires
● - Hydraulic ventilation. Answer: Mechanical ventilation
● - evacuate the roof promptly.. Answer: evacuate the roof promptly.
● - at or very near the lowest point of the roof when possible.. Answer: at or very near the
highest point of the roof when possible.
, ● - Clear windows of broken glass before deploying hose through them.. Answer: Clear
windows of broken glass before deploying hose through them.
● - loaded with both couplings toward the front.. Answer: loaded loose enough to fit a
gloved hand between the folds.
● - Store hose with a small amount of water in it so the inner lining doesn't dry out..
Answer: Avoid laying hose on hot pavement to dry.
● - Measure water pressure in the fire hose. Answer: Connect sections of hose together to
form one long hoseline
● - after its annual inspection.. Answer: if it has been exposed to oil.
● - fully charged before being deployed from the hose bed.. Answer: fully deployed from
the hose bed before charging the line.
● - Triple layer roll. Answer: Straight roll
● - for drafting from a static water source.. Answer: for drafting from a static water source.
● - Always load large diameter hose with couplings toward the back of the hose bed..
Answer: Remove kinks and twists from the hose when forming a loop.
● - Attack hose. Answer: Supply hose
● - Combination load. Answer: Flat load
● - Straight roll. Answer: Twin donut roll
● - there is an increased risk of flashover.. Answer: the fire is too large to be controlled by
handlines.
● - It puts less weight on the shoulders of the firefighters carrying the hose.. Answer:
The hose does not drag on the ground.
● - Gate-valved hydrant. Answer: Dry-barrel hydrant
● - Reducer. Answer: Reducer
● - Cellar nozzle. Answer: Smooth bore nozzle
● - tighten or loosen coupling connections.. Answer: tighten or loosen coupling
connections.
