TEXAS GENERAL PUMP INSTALLER LICENSING EXAM LATEST
2026/2027 COMPLETE ACCURATE EXAM ACTUAL QUESTIONS AND
CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED
SOLUTIONS) NEWEST UPDATED VERSION 2026 EDITION |ALREADY
GRADED A+ |APPROVED EXAM
1. A water well system installed in Texas for general pump installation must comply with
which of the following regulatory references?
A) International Plumbing Code only
B) National Electrical Code and Texas Administrative Code, Title 30
C) Uniform Mechanical Code and local city amendments
D) Texas Health and Safety Code, Chapter 341 only
CORRECT ANSWER: B – National Electrical Code and Texas Administrative Code, Title
30.
Rationale: Texas Administrative Code Title 30 (Texas Water Code) governs water well and
pump installation, and the National Electrical Code applies to electrical wiring and safety
for pump systems. The combination ensures legal and safety compliance.
2. When installing a submersible pump in a residential water well, the minimum
recommended distance from a septic tank drainfield is:
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
CORRECT ANSWER: D – 100 feet.
Rationale: Texas regulations (30 TAC 290.41–290.47) require a minimum separation
distance of 100 feet between a private well (and its pump) and a septic tank drainfield to
prevent bacterial contamination of groundwater.
3. A constant pressure system using a variable frequency drive (VFD) on a pump is
primarily intended to:
A) Increase pump starting torque only
B) Maintain stable water pressure regardless of demand
C) Reduce pump horsepower by 50%
D) Allow reverse rotation for cleaning
CORRECT ANSWER: B – Maintain stable water pressure regardless of demand.
Rationale: VFDs adjust motor speed to match demand, keeping discharge pressure
constant without pressure tank cycling, improving efficiency and reducing wear.
,4. According to the Texas Water Well Drillers and Pump Installers rules, a pump installed
in a well that serves a public water system must have a backflow prevention device that
meets:
A) ASSE 1013 standards
B) No standard, only a check valve is sufficient
C) ASSE 1024 standard for dual check valves
D) NSF/ANSI 350 standard
CORRECT ANSWER: A – ASSE 1013 standards.
Rationale: Texas rules require reduced pressure principle backflow preventers (ASSE 1013)
on public water supply wells to protect the potable water supply from contamination due
to backsiphonage.
5. Which of the following is a required component for a submersible pump installation
in a dug well in Texas?
A) Pitless adapter unit
B) Well seal or sanitary cap
C) Overload relay inside the well
D) Wooden cover for freeze protection
CORRECT ANSWER: B – Well seal or sanitary cap.
Rationale: Texas law requires a vermin-proof and watertight seal or sanitary cap at the top
of the well casing to prevent surface contamination from entering the well.
6. A licensed pump installer in Texas discovers a well with no disinfection records after
pump replacement. The installer must:
A) Ignore the issue and proceed
B) Shock chlorinate the well before completing installation
C) Report the owner to TCEQ within 24 hours
D) Request a lab test from the owner only
CORRECT ANSWER: B – Shock chlorinate the well before completing installation.
Rationale: Texas Administrative Code requires disinfection of any well that has been
opened or serviced. Failure to disinfect can lead to bacterial contamination.
7. What is the minimum continuous well casing height above ground level in Texas for a
finished pump installation in a non-flood prone area?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
, CORRECT ANSWER: B – 12 inches.
*Rationale: 30 TAC 290.41 requires well casing to extend at least 12 inches above
ground elevation to prevent surface water entry unless a watertight seal is installed in a
below-grade pit.*
8. When selecting a pump for a deep well (over 200 feet), which of the following is most
critical?
A) Pump material (bronze vs. plastic)
B) Total Dynamic Head (TDH) calculation
C) Voltage of the service panel
D) Color of the pump housing
CORRECT ANSWER: B – Total Dynamic Head (TDH) calculation.
Rationale: TDH accounts for lift, friction losses, and pressure requirements; incorrect
calculation will result in inadequate flow or pump failure in deep wells.
9. According to Texas law, which of the following best describes continuing education
(CE) requirements for a licensed pump installer?
A) 5 hours every 3 years
B) 10 hours every 2 years
C) No CE required
D) 8 hours every year
CORRECT ANSWER: B – 10 hours every 2 years.
*Rationale: Texas pump installers must complete 10 hours of TCEQ-approved continuing
education during each 2-year renewal period, including at least 1 hour of rules and
ethics.*
10. A pump installer in Texas replaces a jet pump and notices that the pressure switch
short-cycles. The most likely cause is:
A) Low well water level
B) Failed check valve
C) Waterlogged pressure tank
D) Oversized pump impeller
CORRECT ANSWER: C – Waterlogged pressure tank.
Rationale: A pressure tank without proper air charge (waterlogged) causes rapid pressure
changes, leading to short-cycling of the pump and potential motor damage.
11. The maximum allowable concentration of arsenic in drinking water from a well with
a pump installed in Texas is:
A) 0.010 mg/L
2026/2027 COMPLETE ACCURATE EXAM ACTUAL QUESTIONS AND
CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED
SOLUTIONS) NEWEST UPDATED VERSION 2026 EDITION |ALREADY
GRADED A+ |APPROVED EXAM
1. A water well system installed in Texas for general pump installation must comply with
which of the following regulatory references?
A) International Plumbing Code only
B) National Electrical Code and Texas Administrative Code, Title 30
C) Uniform Mechanical Code and local city amendments
D) Texas Health and Safety Code, Chapter 341 only
CORRECT ANSWER: B – National Electrical Code and Texas Administrative Code, Title
30.
Rationale: Texas Administrative Code Title 30 (Texas Water Code) governs water well and
pump installation, and the National Electrical Code applies to electrical wiring and safety
for pump systems. The combination ensures legal and safety compliance.
2. When installing a submersible pump in a residential water well, the minimum
recommended distance from a septic tank drainfield is:
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
CORRECT ANSWER: D – 100 feet.
Rationale: Texas regulations (30 TAC 290.41–290.47) require a minimum separation
distance of 100 feet between a private well (and its pump) and a septic tank drainfield to
prevent bacterial contamination of groundwater.
3. A constant pressure system using a variable frequency drive (VFD) on a pump is
primarily intended to:
A) Increase pump starting torque only
B) Maintain stable water pressure regardless of demand
C) Reduce pump horsepower by 50%
D) Allow reverse rotation for cleaning
CORRECT ANSWER: B – Maintain stable water pressure regardless of demand.
Rationale: VFDs adjust motor speed to match demand, keeping discharge pressure
constant without pressure tank cycling, improving efficiency and reducing wear.
,4. According to the Texas Water Well Drillers and Pump Installers rules, a pump installed
in a well that serves a public water system must have a backflow prevention device that
meets:
A) ASSE 1013 standards
B) No standard, only a check valve is sufficient
C) ASSE 1024 standard for dual check valves
D) NSF/ANSI 350 standard
CORRECT ANSWER: A – ASSE 1013 standards.
Rationale: Texas rules require reduced pressure principle backflow preventers (ASSE 1013)
on public water supply wells to protect the potable water supply from contamination due
to backsiphonage.
5. Which of the following is a required component for a submersible pump installation
in a dug well in Texas?
A) Pitless adapter unit
B) Well seal or sanitary cap
C) Overload relay inside the well
D) Wooden cover for freeze protection
CORRECT ANSWER: B – Well seal or sanitary cap.
Rationale: Texas law requires a vermin-proof and watertight seal or sanitary cap at the top
of the well casing to prevent surface contamination from entering the well.
6. A licensed pump installer in Texas discovers a well with no disinfection records after
pump replacement. The installer must:
A) Ignore the issue and proceed
B) Shock chlorinate the well before completing installation
C) Report the owner to TCEQ within 24 hours
D) Request a lab test from the owner only
CORRECT ANSWER: B – Shock chlorinate the well before completing installation.
Rationale: Texas Administrative Code requires disinfection of any well that has been
opened or serviced. Failure to disinfect can lead to bacterial contamination.
7. What is the minimum continuous well casing height above ground level in Texas for a
finished pump installation in a non-flood prone area?
A) 6 inches
B) 12 inches
C) 18 inches
D) 24 inches
, CORRECT ANSWER: B – 12 inches.
*Rationale: 30 TAC 290.41 requires well casing to extend at least 12 inches above
ground elevation to prevent surface water entry unless a watertight seal is installed in a
below-grade pit.*
8. When selecting a pump for a deep well (over 200 feet), which of the following is most
critical?
A) Pump material (bronze vs. plastic)
B) Total Dynamic Head (TDH) calculation
C) Voltage of the service panel
D) Color of the pump housing
CORRECT ANSWER: B – Total Dynamic Head (TDH) calculation.
Rationale: TDH accounts for lift, friction losses, and pressure requirements; incorrect
calculation will result in inadequate flow or pump failure in deep wells.
9. According to Texas law, which of the following best describes continuing education
(CE) requirements for a licensed pump installer?
A) 5 hours every 3 years
B) 10 hours every 2 years
C) No CE required
D) 8 hours every year
CORRECT ANSWER: B – 10 hours every 2 years.
*Rationale: Texas pump installers must complete 10 hours of TCEQ-approved continuing
education during each 2-year renewal period, including at least 1 hour of rules and
ethics.*
10. A pump installer in Texas replaces a jet pump and notices that the pressure switch
short-cycles. The most likely cause is:
A) Low well water level
B) Failed check valve
C) Waterlogged pressure tank
D) Oversized pump impeller
CORRECT ANSWER: C – Waterlogged pressure tank.
Rationale: A pressure tank without proper air charge (waterlogged) causes rapid pressure
changes, leading to short-cycling of the pump and potential motor damage.
11. The maximum allowable concentration of arsenic in drinking water from a well with
a pump installed in Texas is:
A) 0.010 mg/L
