ACTUAL Exam Questions and
CORRECT Answers
Florida Pump Operator Practice Exam
100 Original Questions with Answer Key
Section 1 – Pump Theory
1. Centrifugal fire pumps operate primarily by:
A. Positive displacement
B. Hydraulic pressure
C. Centrifugal force created by an impeller
D. Vacuum only
Answer: C
2. Cavitation is caused by:
A. Excessive discharge pressure
B. Insufficient intake pressure causing water to vaporize
C. High engine RPM
,D. Closed discharge valves
Answer: B
3. Net Pump Pressure (NPP) equals:
A. Intake + Discharge
B. Discharge − Intake
C. Intake − Discharge
D. Discharge ÷ Intake
Answer: B
4. A compound gauge measures:
A. Engine oil pressure
B. Vacuum and pressure
C. Pump temperature
D. RPM
Answer: B
5. Which pump is most common on municipal fire apparatus?
A. Rotary
B. Gear
C. Centrifugal
,D. Piston
Answer: C
Section 2 – Hydraulics
6. Normal operating pressure for a smooth bore handline is:
A. 50 psi
B. 75 psi
C. 100 psi
D. 150 psi
Answer: A
7. Standard operating pressure for a fog nozzle is generally:
A. 50 psi
B. 75 psi
C. 100 psi
D. 150 psi
Answer: C
8. Friction loss increases when:
A. Flow decreases
B. Hose length decreases
, C. Flow increases
D. Diameter increases
Answer: C
9. Larger diameter hose produces:
A. More friction loss
B. Less friction loss
C. No change
D. Higher nozzle reaction
Answer: B
10. Elevation pressure changes approximately:
A. 2 psi per foot
B. 0.5 psi per foot
C. 5 psi per 10 feet
D. 10 psi per foot
Answer: B
Section 3 – Water Supply
11. Hydrant pressure before water flows is called:
A. Residual