Firefighter Math · Question
Scenario 29: The elevation from the pump to the nozzle is 20 feet. If 1 PSI lifts water approximately 2.3 feet, what is the head pressure due to elevation?
Divide the elevation by the conversion factor for head pressure: 20 feet / 2.3 feet/PSI ≈ 8.695 PSI, which rounds to 8.7 PSI. (For exam purposes, round accordin
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Question: Scenario 29: The elevation from the pump to the nozzle is 20 feet. If 1 PSI lifts water approximately 2.3 feet, what is the head pressure due to elevation?
Answer options: ✅ 8.7 PSI
- 10.0 PSI
- 12.5 PSI
- 15.0 PSI
Correct answer: 8.7 PSI
Explanation: Divide the elevation by the conversion factor for head pressure: 20 feet / 2.3 feet/PSI ≈ 8.695 PSI, which rounds to 8.7 PSI. (For exam purposes, round accordingly). The correct answer is "8.7 PSI". This capacity-fill scenario 29 reinforces the same competency for the firefighter-math bank and follows the certified explanation standard.
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