PAPER 2026 QUESTIONS WITH ANSWERS
GRADED A+
>> Pump operator
Answer: Firefighter responsible for operating fire apparatus pump and
water supply
>> Fire pump
Answer: Mechanical device that moves water from source to discharge
outlets
>> Centrifugal pump
Answer: Most common fire pump type — uses impeller spinning to move
water
>> Impeller
Answer: Rotating disc inside centrifugal pump that accelerates water
>> Volute
Answer: Spiral casing surrounding impeller — converts velocity to pressure
>> Single-stage pump
Answer: One impeller — used for high-volume, lower-pressure operations
>> Two-stage pump
Answer: Two impellers — series for high pressure, parallel for high volume
, >> Series operation
Answer: Both impeller stages working in series — doubles pressure output
>> Parallel (volume) operation
Answer: Both stages working together for high flow at moderate pressure
>> Transfer valve
Answer: Selects series or parallel operation on two-stage pump
>> Rated capacity
Answer: Volume of water pump can deliver at rated pressure — tested at
150 PSI
>> Rated pressure
Answer: 150 PSI — standard test pressure for pump capacity rating
>> Draft
Answer: Drawing water from static source below pump level using
atmospheric pressure
>> Lift
Answer: Vertical distance water must be raised during drafting operations
>> Maximum lift
Answer: Approximately 15 feet — practical limit for drafting operations
>> Cavitation
Answer: Vapor bubbles forming in pump due to insufficient inlet pressure
— damages pump