COLORADO PUMP INSTALLER LICENSING EXAM
QUESTIONS ANDCORRECT ANSWERS (VERIFIED
ANSWERS) Q&A 2026 |INSTANT DOWNLOAD PDF
1. What is the primary function of a water pump system?
A. Store water
B. Increase water pressure and move fluids
C. Filter water contaminants
D. Heat water
Rationale: Pumps are designed to move fluids by increasing
pressure and flow.
Correct answer: B
2. Which unit is used to measure flow rate in pump systems?
A. PSI
B. Gallons per minute (GPM)
C. Watts
D. Ohms
Rationale: Flow rate is commonly measured in GPM.
Correct answer: B
3. What does pump “head” refer to?
,A. Pump weight
B. Vertical lift capability
C. Electrical load
D. Pipe diameter
Rationale: Head measures vertical lift or pressure energy.
Correct answer: B
4. Which pump type is commonly used for deep wells?
A. Centrifugal pump
B. Submersible pump
C. Gear pump
D. Diaphragm pump
Rationale: Submersible pumps operate efficiently in deep wells.
Correct answer: B
5. Cavitation in pumps is caused by:
A. Excess lubrication
B. High voltage
C. Low pressure causing vapor bubbles
D. Oversized piping
Rationale: Cavitation occurs when pressure drops below vapor
pressure.
Correct answer: C
,6. What is the purpose of a check valve in a pump system?
A. Increase pressure
B. Prevent reverse flow
C. Filter debris
D. Reduce noise
Rationale: Check valves allow one-way flow only.
Correct answer: B
7. Which material is commonly used for pump impellers?
A. Rubber
B. Cast iron or stainless steel
C. Wood
D. Fabric
Rationale: Impellers require durable metals for wear resistance.
Correct answer: B
8. What does NPSH stand for?
A. Net Positive Suction Head
B. Normal Pump System Height
C. Net Pressure Supply Head
D. Negative Pressure Suction Hose
Rationale: NPSH relates to suction pressure conditions.
Correct answer: A
, 9. A centrifugal pump works primarily using:
A. Gravity
B. Rotational kinetic energy
C. Magnetic force
D. Vacuum suction only
Rationale: Centrifugal force moves fluid outward.
Correct answer: B
10. What is the purpose of a pressure switch?
A. Measure water quality
B. Control pump on/off operation
C. Increase flow rate
D. Cool pump motor
Rationale: Pressure switches regulate system cycling.
Correct answer: B
11. Which hazard is most common in pump installation?
A. Radiation
B. Electrical shock
C. Freezing water
D. Dust inhalation
QUESTIONS ANDCORRECT ANSWERS (VERIFIED
ANSWERS) Q&A 2026 |INSTANT DOWNLOAD PDF
1. What is the primary function of a water pump system?
A. Store water
B. Increase water pressure and move fluids
C. Filter water contaminants
D. Heat water
Rationale: Pumps are designed to move fluids by increasing
pressure and flow.
Correct answer: B
2. Which unit is used to measure flow rate in pump systems?
A. PSI
B. Gallons per minute (GPM)
C. Watts
D. Ohms
Rationale: Flow rate is commonly measured in GPM.
Correct answer: B
3. What does pump “head” refer to?
,A. Pump weight
B. Vertical lift capability
C. Electrical load
D. Pipe diameter
Rationale: Head measures vertical lift or pressure energy.
Correct answer: B
4. Which pump type is commonly used for deep wells?
A. Centrifugal pump
B. Submersible pump
C. Gear pump
D. Diaphragm pump
Rationale: Submersible pumps operate efficiently in deep wells.
Correct answer: B
5. Cavitation in pumps is caused by:
A. Excess lubrication
B. High voltage
C. Low pressure causing vapor bubbles
D. Oversized piping
Rationale: Cavitation occurs when pressure drops below vapor
pressure.
Correct answer: C
,6. What is the purpose of a check valve in a pump system?
A. Increase pressure
B. Prevent reverse flow
C. Filter debris
D. Reduce noise
Rationale: Check valves allow one-way flow only.
Correct answer: B
7. Which material is commonly used for pump impellers?
A. Rubber
B. Cast iron or stainless steel
C. Wood
D. Fabric
Rationale: Impellers require durable metals for wear resistance.
Correct answer: B
8. What does NPSH stand for?
A. Net Positive Suction Head
B. Normal Pump System Height
C. Net Pressure Supply Head
D. Negative Pressure Suction Hose
Rationale: NPSH relates to suction pressure conditions.
Correct answer: A
, 9. A centrifugal pump works primarily using:
A. Gravity
B. Rotational kinetic energy
C. Magnetic force
D. Vacuum suction only
Rationale: Centrifugal force moves fluid outward.
Correct answer: B
10. What is the purpose of a pressure switch?
A. Measure water quality
B. Control pump on/off operation
C. Increase flow rate
D. Cool pump motor
Rationale: Pressure switches regulate system cycling.
Correct answer: B
11. Which hazard is most common in pump installation?
A. Radiation
B. Electrical shock
C. Freezing water
D. Dust inhalation
