TEXAS GENERAL PUMP INSTALLER EXAM 3 VERSIONS 50 QUESTIONS
WITH ANSWERS & RATIONALES EACH |ACCURATE AND EXPERT
VERIFIED FOR GUARANTEED PASS | LATEST UPDATE
Question 1
Which state agency is responsible for the licensing of Water Well Pump Installers in Texas?
A) Texas Commission on Environmental Quality (TCEQ)
B) Texas Water Development Board (TWDB)
C) Texas Department of Licensing and Regulation (TDLR)
D) Environmental Protection Agency (EPA)
Correct Answer: C) Texas Department of Licensing and Regulation (TDLR)
Rationale: The TDLR is the state body that issues and renews licenses for well drillers and
pump installers. The TCEQ sets the technical standards and regulations for well
construction and environmental protection, but the TDLR handles the licensing of the
professionals.
Question 2
According to Texas Administrative Code (TAC) Chapter 76, what is the minimum horizontal
distance a water well must be from a septic tank?
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
Correct Answer: B) 50 feet
Rationale: To prevent contamination of the drinking water source, state regulations
mandate minimum separation distances. A water well must be located at least 50 feet from
any septic tank to minimize the risk of effluent migrating into the well.
Question 3
What is the primary function of an impeller in a submersible pump?
A) To cool the motor.
B) To increase the velocity and pressure of the water.
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C) To prevent water from flowing back down the well.
D) To filter out sand and sediment.
Correct Answer: B) To increase the velocity and pressure of the water.
Rationale: The impeller is the rotating component of the pump. As it spins, its vanes throw
water outwards at high velocity. The diffuser, the stationary component surrounding the
impeller, then converts this velocity into pressure, lifting the water up the drop pipe.
Question 4
A licensed Pump Installer must complete a State of Texas Well Report for a new pump
installation and submit it to the TCEQ and the landowner within how many days of the
installation?
A) 10 days
B) 30 days
C) 60 days
D) 90 days
Correct Answer: C) 60 days
Rationale: The State of Texas Well Report is a legal document that provides a record of the
well's construction and the pump's installation details. TDLR rules require this report to be
completed and filed with the appropriate agencies and the owner within 60 days of
completion.
Question 5
In electrical wiring, what is the relationship between the American Wire Gauge (AWG) number
and the physical size of the wire?
A) A lower AWG number indicates a smaller wire diameter.
B) A lower AWG number indicates a larger wire diameter.
C) The AWG number is equal to the wire's diameter in millimeters.
D) There is no relationship between the AWG number and the wire size.
Correct Answer: B) A lower AWG number indicates a larger wire diameter.
Rationale: The AWG standard is counterintuitive. A smaller gauge number corresponds to
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a larger, thicker wire with a greater current-carrying capacity (ampacity). For example, a
#10 AWG wire is larger than a #12 AWG wire.
Question 6
A customer complains that their pump cycles on and off frequently, even when no water is being
used. What is the most likely cause of this problem?
A) The pump is set at the wrong depth.
B) The pressure tank is waterlogged or has a ruptured bladder.
C) The well is going dry.
D) The circuit breaker is too small.
Correct Answer: B) The pressure tank is waterlogged or has a ruptured bladder.
Rationale: A pressure tank is designed to hold a cushion of compressed air. When this air
cushion is lost (a waterlogged tank) or the bladder fails, there is no buffer to absorb
pressure changes. As soon as a small amount of water is used or leaks out, the pressure
drops instantly, causing the pump to turn on. The pressure then rises instantly, causing the
pump to turn off, leading to rapid cycling.
Question 7
What is the "static water level" in a well?
A) The water level in the well while the pump is running.
B) The level to which water rises in a well under normal, no-pumping conditions.
C) The depth at which the pump is set.
D) The total depth of the well.
Correct Answer: B) The level to which water rises in a well under normal, no-pumping
conditions.
Rationale: The static water level is the natural equilibrium point of the water in the well,
measured from the ground surface, when the well has been at rest and no water is being
pumped out.
Question 8
What is the primary purpose of a check valve in a submersible pump system?
A) To regulate the speed of the pump motor.
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B) To prevent water from flowing back down the drop pipe into the well when the pump turns
off.
C) To allow the system to be drained for service.
D) To control the pressure in the system.
Correct Answer: B) To prevent water from flowing back down the drop pipe into the well
when the pump turns off.
Rationale: A check valve is a one-way valve. It allows water to flow up the drop pipe but
closes automatically when the pump stops. This keeps the drop pipe and the pressure tank
full of water, preventing the pump from having to re-lift the entire column of water on
every start-up and protecting it from backspin.
Question 9
What is the minimum horizontal separation distance required between a water well and a septic
system drainfield?
A) 25 feet
B) 50 feet
C) 100 feet
D) 150 feet
Correct Answer: C) 100 feet
Rationale: To provide a higher level of protection from the most likely source of
contamination, Texas regulations require a minimum setback of 100 feet between a private
water well and a septic system's absorption field (drainfield).
Question 10
The difference between the static water level and the pumping water level is known as:
A) Well yield
B) Specific capacity
C) Drawdown
D) Total dynamic head
Correct Answer: C) A drawdown
Rationale: Drawdown is the measure of how much the water level in the well drops as a
WITH ANSWERS & RATIONALES EACH |ACCURATE AND EXPERT
VERIFIED FOR GUARANTEED PASS | LATEST UPDATE
Question 1
Which state agency is responsible for the licensing of Water Well Pump Installers in Texas?
A) Texas Commission on Environmental Quality (TCEQ)
B) Texas Water Development Board (TWDB)
C) Texas Department of Licensing and Regulation (TDLR)
D) Environmental Protection Agency (EPA)
Correct Answer: C) Texas Department of Licensing and Regulation (TDLR)
Rationale: The TDLR is the state body that issues and renews licenses for well drillers and
pump installers. The TCEQ sets the technical standards and regulations for well
construction and environmental protection, but the TDLR handles the licensing of the
professionals.
Question 2
According to Texas Administrative Code (TAC) Chapter 76, what is the minimum horizontal
distance a water well must be from a septic tank?
A) 25 feet
B) 50 feet
C) 75 feet
D) 100 feet
Correct Answer: B) 50 feet
Rationale: To prevent contamination of the drinking water source, state regulations
mandate minimum separation distances. A water well must be located at least 50 feet from
any septic tank to minimize the risk of effluent migrating into the well.
Question 3
What is the primary function of an impeller in a submersible pump?
A) To cool the motor.
B) To increase the velocity and pressure of the water.
,[Type here]
C) To prevent water from flowing back down the well.
D) To filter out sand and sediment.
Correct Answer: B) To increase the velocity and pressure of the water.
Rationale: The impeller is the rotating component of the pump. As it spins, its vanes throw
water outwards at high velocity. The diffuser, the stationary component surrounding the
impeller, then converts this velocity into pressure, lifting the water up the drop pipe.
Question 4
A licensed Pump Installer must complete a State of Texas Well Report for a new pump
installation and submit it to the TCEQ and the landowner within how many days of the
installation?
A) 10 days
B) 30 days
C) 60 days
D) 90 days
Correct Answer: C) 60 days
Rationale: The State of Texas Well Report is a legal document that provides a record of the
well's construction and the pump's installation details. TDLR rules require this report to be
completed and filed with the appropriate agencies and the owner within 60 days of
completion.
Question 5
In electrical wiring, what is the relationship between the American Wire Gauge (AWG) number
and the physical size of the wire?
A) A lower AWG number indicates a smaller wire diameter.
B) A lower AWG number indicates a larger wire diameter.
C) The AWG number is equal to the wire's diameter in millimeters.
D) There is no relationship between the AWG number and the wire size.
Correct Answer: B) A lower AWG number indicates a larger wire diameter.
Rationale: The AWG standard is counterintuitive. A smaller gauge number corresponds to
,[Type here]
a larger, thicker wire with a greater current-carrying capacity (ampacity). For example, a
#10 AWG wire is larger than a #12 AWG wire.
Question 6
A customer complains that their pump cycles on and off frequently, even when no water is being
used. What is the most likely cause of this problem?
A) The pump is set at the wrong depth.
B) The pressure tank is waterlogged or has a ruptured bladder.
C) The well is going dry.
D) The circuit breaker is too small.
Correct Answer: B) The pressure tank is waterlogged or has a ruptured bladder.
Rationale: A pressure tank is designed to hold a cushion of compressed air. When this air
cushion is lost (a waterlogged tank) or the bladder fails, there is no buffer to absorb
pressure changes. As soon as a small amount of water is used or leaks out, the pressure
drops instantly, causing the pump to turn on. The pressure then rises instantly, causing the
pump to turn off, leading to rapid cycling.
Question 7
What is the "static water level" in a well?
A) The water level in the well while the pump is running.
B) The level to which water rises in a well under normal, no-pumping conditions.
C) The depth at which the pump is set.
D) The total depth of the well.
Correct Answer: B) The level to which water rises in a well under normal, no-pumping
conditions.
Rationale: The static water level is the natural equilibrium point of the water in the well,
measured from the ground surface, when the well has been at rest and no water is being
pumped out.
Question 8
What is the primary purpose of a check valve in a submersible pump system?
A) To regulate the speed of the pump motor.
, [Type here]
B) To prevent water from flowing back down the drop pipe into the well when the pump turns
off.
C) To allow the system to be drained for service.
D) To control the pressure in the system.
Correct Answer: B) To prevent water from flowing back down the drop pipe into the well
when the pump turns off.
Rationale: A check valve is a one-way valve. It allows water to flow up the drop pipe but
closes automatically when the pump stops. This keeps the drop pipe and the pressure tank
full of water, preventing the pump from having to re-lift the entire column of water on
every start-up and protecting it from backspin.
Question 9
What is the minimum horizontal separation distance required between a water well and a septic
system drainfield?
A) 25 feet
B) 50 feet
C) 100 feet
D) 150 feet
Correct Answer: C) 100 feet
Rationale: To provide a higher level of protection from the most likely source of
contamination, Texas regulations require a minimum setback of 100 feet between a private
water well and a septic system's absorption field (drainfield).
Question 10
The difference between the static water level and the pumping water level is known as:
A) Well yield
B) Specific capacity
C) Drawdown
D) Total dynamic head
Correct Answer: C) A drawdown
Rationale: Drawdown is the measure of how much the water level in the well drops as a
