TEXAS WATER WELL PUMP INSTALLER LICENSE EXAM TESTBANK
2026/2027, HIGH YIELD PRACTICE QUESTIONS AND STUDY GUIDE
COMPLETE ACCURATE QUESTIONS AND CORRECT SOLUTIONS WITH
DETAILED RATIONALES (100% CORRECT VERIFIED ANSWERS)
NEWEST UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+
(BRAND NEW!) FULL REVISED TEXAS WATER WELL PUMP INSTALLER
LICENSE APPROVED EXAM
1. Which state agency has primary jurisdiction over water well pump installation in
Texas?
A) Texas Department of Licensing and Regulation
B) Texas Water Development Board
C) Texas Commission on Environmental Quality
D) Texas Groundwater Conservation District
Correct Answer: C
Rationale: TCEQ has primary authority for water well construction and pump
installation under Texas Administrative Code, Title 30, Chapter 331.
2. What is the minimum required distance from a septic tank drainfield to a water
well pump site?
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
Correct Answer: D
Rationale: Texas law requires at least 100 feet separation between a septic
system’s absorption field and any water well to prevent bacterial contamination of
the groundwater source.
,3. A submersible pump's control box typically contains which of the following
components?
A) Starting capacitor and relay
B) Pressure switch and air volume control
C) Foot valve and strainer
D) Packer and tailpipe
Correct Answer: A
Rationale: The control box for a submersible pump houses the starting capacitor
and relay, which assist in motor startup and operation; pressure switches are
external, and foot valves are in the well.
4. According to Texas regulations, a pump installer must disinfect a well after
pump installation using a chlorine solution of what minimum concentration?
A) 50 mg/L
B) 100 mg/L
C) 200 mg/L
D) 500 mg/L
Correct Answer: B
Rationale: TCEQ rules specify 100 mg/L chlorine concentration for well
disinfection following pump installation or repair to ensure elimination of bacterial
contamination.
5. Which type of pump is most commonly used in Texas for deep wells exceeding
200 feet?
A) Jet pump
B) Centrifugal pump
C) Submersible pump
D) Reciprocating pump
Correct Answer: C
Rationale: Submersible pumps are efficient for deep wells because they operate
below water level, pushing water to the surface, unlike jet pumps which lose
efficiency beyond 200 feet.
,6. What is the primary purpose of a torque arrestor on a submersible pump
installation?
A) Prevent electrical shock
B) Reduce pump startup torque on the drop pipe
C) Filter sand from well water
D) Measure water flow rate
Correct Answer: B
Rationale: A torque arrestor is a rubber device that prevents the pump and pipe
from twisting during motor startup, protecting the well casing and pipe threads.
7. A well pump installer in Texas must be licensed under which TDLR
classification for water well pump installation?
A) Irrigator License
B) Water Well Driller License
C) Pump Installer License
D) Plumbing Inspector License
Correct Answer: C
Rationale: TDLR issues the Water Well Pump Installer license specific to
installing, servicing, and repairing pumps in water wells, separate from drilling or
plumbing licenses.
8. Which of the following is a violation of Texas pump installation rules?
A) Using PVC drop pipe in a 400-foot well
B) Installing a pump without a pitless adapter
C) Installing a pump without a sanitary seal or well cap
D) Using a check valve above ground
Correct Answer: C
Rationale: Texas law requires a vermin-proof, watertight well cap or sanitary seal
to prevent surface contamination; omitting it is a direct violation of 30 TAC 331.
, 9. What is the minimum wire size (AWG) allowed for a 1.5 HP submersible pump
at 230V with a cable length of 300 feet?
A) 14 AWG
B) 12 AWG
C) 10 AWG
D) 8 AWG
Correct Answer: C
Rationale: Voltage drop calculations for 1.5 HP, 230V, 300 ft require at least 10
AWG to maintain voltage drop below 5% per NEC and manufacturer
specifications.
10. When pulling a submersible pump, the first safety step is:
A) Disconnect power at the breaker
B) Remove the well cap
C) Drain the pressure tank
D) Loosen the packing gland
Correct Answer: A
Rationale: Lockout/tagout of electrical power prevents accidental startup while
handling pump wires, critical for installer safety.
11. Which device automatically turns off a pump if the well water level drops
below the pump intake?
A) Low-pressure cutoff switch
B) Cycle sensor
C) Dry-run protector (pump monitor)
D) Air-volume control
Correct Answer: C
Rationale: A dry-run protector senses loss of load (amperage drop) or pressure to
shut down pump before overheating or seal damage occurs due to lack of water.
2026/2027, HIGH YIELD PRACTICE QUESTIONS AND STUDY GUIDE
COMPLETE ACCURATE QUESTIONS AND CORRECT SOLUTIONS WITH
DETAILED RATIONALES (100% CORRECT VERIFIED ANSWERS)
NEWEST UPDATED VERSION 2026 EDITION |GUARANTEED PASS A+
(BRAND NEW!) FULL REVISED TEXAS WATER WELL PUMP INSTALLER
LICENSE APPROVED EXAM
1. Which state agency has primary jurisdiction over water well pump installation in
Texas?
A) Texas Department of Licensing and Regulation
B) Texas Water Development Board
C) Texas Commission on Environmental Quality
D) Texas Groundwater Conservation District
Correct Answer: C
Rationale: TCEQ has primary authority for water well construction and pump
installation under Texas Administrative Code, Title 30, Chapter 331.
2. What is the minimum required distance from a septic tank drainfield to a water
well pump site?
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
Correct Answer: D
Rationale: Texas law requires at least 100 feet separation between a septic
system’s absorption field and any water well to prevent bacterial contamination of
the groundwater source.
,3. A submersible pump's control box typically contains which of the following
components?
A) Starting capacitor and relay
B) Pressure switch and air volume control
C) Foot valve and strainer
D) Packer and tailpipe
Correct Answer: A
Rationale: The control box for a submersible pump houses the starting capacitor
and relay, which assist in motor startup and operation; pressure switches are
external, and foot valves are in the well.
4. According to Texas regulations, a pump installer must disinfect a well after
pump installation using a chlorine solution of what minimum concentration?
A) 50 mg/L
B) 100 mg/L
C) 200 mg/L
D) 500 mg/L
Correct Answer: B
Rationale: TCEQ rules specify 100 mg/L chlorine concentration for well
disinfection following pump installation or repair to ensure elimination of bacterial
contamination.
5. Which type of pump is most commonly used in Texas for deep wells exceeding
200 feet?
A) Jet pump
B) Centrifugal pump
C) Submersible pump
D) Reciprocating pump
Correct Answer: C
Rationale: Submersible pumps are efficient for deep wells because they operate
below water level, pushing water to the surface, unlike jet pumps which lose
efficiency beyond 200 feet.
,6. What is the primary purpose of a torque arrestor on a submersible pump
installation?
A) Prevent electrical shock
B) Reduce pump startup torque on the drop pipe
C) Filter sand from well water
D) Measure water flow rate
Correct Answer: B
Rationale: A torque arrestor is a rubber device that prevents the pump and pipe
from twisting during motor startup, protecting the well casing and pipe threads.
7. A well pump installer in Texas must be licensed under which TDLR
classification for water well pump installation?
A) Irrigator License
B) Water Well Driller License
C) Pump Installer License
D) Plumbing Inspector License
Correct Answer: C
Rationale: TDLR issues the Water Well Pump Installer license specific to
installing, servicing, and repairing pumps in water wells, separate from drilling or
plumbing licenses.
8. Which of the following is a violation of Texas pump installation rules?
A) Using PVC drop pipe in a 400-foot well
B) Installing a pump without a pitless adapter
C) Installing a pump without a sanitary seal or well cap
D) Using a check valve above ground
Correct Answer: C
Rationale: Texas law requires a vermin-proof, watertight well cap or sanitary seal
to prevent surface contamination; omitting it is a direct violation of 30 TAC 331.
, 9. What is the minimum wire size (AWG) allowed for a 1.5 HP submersible pump
at 230V with a cable length of 300 feet?
A) 14 AWG
B) 12 AWG
C) 10 AWG
D) 8 AWG
Correct Answer: C
Rationale: Voltage drop calculations for 1.5 HP, 230V, 300 ft require at least 10
AWG to maintain voltage drop below 5% per NEC and manufacturer
specifications.
10. When pulling a submersible pump, the first safety step is:
A) Disconnect power at the breaker
B) Remove the well cap
C) Drain the pressure tank
D) Loosen the packing gland
Correct Answer: A
Rationale: Lockout/tagout of electrical power prevents accidental startup while
handling pump wires, critical for installer safety.
11. Which device automatically turns off a pump if the well water level drops
below the pump intake?
A) Low-pressure cutoff switch
B) Cycle sensor
C) Dry-run protector (pump monitor)
D) Air-volume control
Correct Answer: C
Rationale: A dry-run protector senses loss of load (amperage drop) or pressure to
shut down pump before overheating or seal damage occurs due to lack of water.
