TEXAS GENERAL PUMP INSTALLER EXAM 3 VERSIONS 50
QUESTIONS WITH ANSWERS & RATIONALES EACH
|ACCURATE AND EXPERT VERIFIED FOR GUARANTEED
PASS | LATEST UPDATE
1
The main purpose of a well pump check valve is to:
A. Increase pressure
B. Prevent backflow into the well
C. Reduce noise
D. Remove sand
Answer: B
Rationale: A check valve stops water from flowing back down and losing prime.
2
Which electrical code governs pump wiring in Texas?
A. NEC Article 680
B. National Electrical Code (NEC) Article 430
C. OSHA 1926
D. Texas Water Code 36
Answer: B
Rationale: NEC 430 covers motors and pump circuits.
3
,The minimum burial depth for underground electrical conduit in Texas is typically:
A. 6 in.
B. 18 in.
C. 24 in.
D. 30 in.
Answer: B
Rationale: NEC requires at least 18 inches for residential underground circuits.
4
A pressure switch set at 40/60 psi turns the pump on at:
A. 30 psi
B. 40 psi
C. 50 psi
D. 60 psi
Answer: B
Rationale: The lower number is the cut-in pressure.
5
Which disinfectant is most commonly used to sanitize a new well?
A. Ozone
B. UV light
C. Chlorine bleach (sodium hypochlorite)
D. Hydrogen peroxide
Answer: C
Rationale: Chlorination kills bacteria before system start-up.
6
,What is the typical voltage for a residential submersible pump motor?
A. 120 V
B. 240 V
C. 480 V
D. 12 V
Answer: B
Rationale: Most residential well pumps are wired for 240 volts.
7
The static water level in a well is measured:
A. While the pump is running
B. When the pump is off and water is at rest
C. After 1 hour of pumping
D. At peak demand
Answer: B
Rationale: Static level is the resting water height.
8
Which component protects the pump motor from overcurrent?
A. Foot valve
B. Pressure switch
C. Circuit breaker or fuse
D. Pitless adapter
Answer: C
Rationale: Overcurrent devices shut power off to prevent damage.
9
, A pitless adapter allows:
A. Horizontal drilling
B. A frost-proof connection below ground
C. Pump priming
D. Water sampling
Answer: B
Rationale: It provides a sanitary, freeze-proof connection to the well.
10
The pump installer license in Texas is regulated by:
A. EPA
B. Texas Department of Licensing and Regulation (TDLR)
C. OSHA
D. Texas Railroad Commission
Answer: B
Rationale: TDLR oversees water well and pump installer licensing.
11
The minimum pressure tank pre-charge should be set:
A. Equal to pump cut-in
B. 2 psi below pump cut-in pressure
C. 5 psi above cut-in
D. Equal to cut-out pressure
Answer: B
Rationale: 2 psi lower ensures correct drawdown and prevents short cycling.
12
QUESTIONS WITH ANSWERS & RATIONALES EACH
|ACCURATE AND EXPERT VERIFIED FOR GUARANTEED
PASS | LATEST UPDATE
1
The main purpose of a well pump check valve is to:
A. Increase pressure
B. Prevent backflow into the well
C. Reduce noise
D. Remove sand
Answer: B
Rationale: A check valve stops water from flowing back down and losing prime.
2
Which electrical code governs pump wiring in Texas?
A. NEC Article 680
B. National Electrical Code (NEC) Article 430
C. OSHA 1926
D. Texas Water Code 36
Answer: B
Rationale: NEC 430 covers motors and pump circuits.
3
,The minimum burial depth for underground electrical conduit in Texas is typically:
A. 6 in.
B. 18 in.
C. 24 in.
D. 30 in.
Answer: B
Rationale: NEC requires at least 18 inches for residential underground circuits.
4
A pressure switch set at 40/60 psi turns the pump on at:
A. 30 psi
B. 40 psi
C. 50 psi
D. 60 psi
Answer: B
Rationale: The lower number is the cut-in pressure.
5
Which disinfectant is most commonly used to sanitize a new well?
A. Ozone
B. UV light
C. Chlorine bleach (sodium hypochlorite)
D. Hydrogen peroxide
Answer: C
Rationale: Chlorination kills bacteria before system start-up.
6
,What is the typical voltage for a residential submersible pump motor?
A. 120 V
B. 240 V
C. 480 V
D. 12 V
Answer: B
Rationale: Most residential well pumps are wired for 240 volts.
7
The static water level in a well is measured:
A. While the pump is running
B. When the pump is off and water is at rest
C. After 1 hour of pumping
D. At peak demand
Answer: B
Rationale: Static level is the resting water height.
8
Which component protects the pump motor from overcurrent?
A. Foot valve
B. Pressure switch
C. Circuit breaker or fuse
D. Pitless adapter
Answer: C
Rationale: Overcurrent devices shut power off to prevent damage.
9
, A pitless adapter allows:
A. Horizontal drilling
B. A frost-proof connection below ground
C. Pump priming
D. Water sampling
Answer: B
Rationale: It provides a sanitary, freeze-proof connection to the well.
10
The pump installer license in Texas is regulated by:
A. EPA
B. Texas Department of Licensing and Regulation (TDLR)
C. OSHA
D. Texas Railroad Commission
Answer: B
Rationale: TDLR oversees water well and pump installer licensing.
11
The minimum pressure tank pre-charge should be set:
A. Equal to pump cut-in
B. 2 psi below pump cut-in pressure
C. 5 psi above cut-in
D. Equal to cut-out pressure
Answer: B
Rationale: 2 psi lower ensures correct drawdown and prevents short cycling.
12
