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Texas Single-Phase Pump Exam (TDLR Pump Installer –
Single Phase Endorsement) COMPLETE QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS YEAR JUST
RELEASED
Texas Single-Phase Pump Exam (TDLR Pump Installer – Single Phase Endorsement) — Summarized
Coverage
The Texas Single-Phase Pump Exam is part of the **Texas Department of Licensing and Regulation
(TDLR) Water Well Pump Installer licensing system. It evaluates knowledge required to install, repair,
and service single-phase water well pump systems, including electrical controls, hydraulics, safety, and
Texas water well rules under Chapters 1901–1902.
This exam is commonly associated with the Pump Installer Single Phase (P) endorsement, which
authorizes residential/light commercial pump installation work.
1. Texas Pump Installer Laws & Licensing Rules
• TDLR Water Well Driller & Pump Installer Act (Ch. 1901–1902)
• Scope of Pump Installer (Single Phase) endorsement
• Apprentice supervision requirements and legal limitations
• Reporting obligations for well and pump installations
• Continuing education and renewal requirements
2. Single-Phase Electrical Fundamentals
• AC single-phase power theory (voltage, current, resistance)
• Ohm’s Law and power calculations (P = V × I)
• Motor starting vs running current (inrush current)
• Capacitors in single-phase motor start/run circuits
• Grounding and electrical safety requirements
3. Pump Motors & Control Systems
• Single-phase submersible motor types
• Start capacitors and relay systems
• Control boxes and pressure switch operation
• Float switches and automatic pump cycling
• Motor protection (overload relays, dry-run protection)
4. Water Well Pump System Components
• Submersible pump assemblies
• Jet pumps (shallow vs deep well systems)
• Drop pipe and column pipe installation
• Check valves and foot valves
• Pressure tanks and system pressure regulation
5. Hydraulics & Pump Performance
• Pump head, flow rate (GPM), and pressure relationships
• Total dynamic head (TDH) concepts
, Page 2 of 119
• Friction loss in piping systems
• Suction lift limitations (jet pumps)
• Pump curve interpretation basics
6. Installation Practices
• Proper lowering and setting of submersible pumps
• Torque arrestors and cable guards
• Splicing waterproof electrical connections
• Pitless adapter installation
• Well cap and sanitary seal requirements
7. Electrical Wiring & Connections
• Single-phase wiring diagrams for pump systems
• Correct conductor sizing for voltage drop
• Underground wiring requirements for wells
• Control box wiring and troubleshooting
• Splicing and insulation techniques for wet environments
8. Testing & Troubleshooting
• Diagnosing no-start, low-pressure, or short cycling issues
• Checking capacitors and start relays
• Measuring amp draw and voltage imbalance
• Identifying clogged impellers or check valve failures
• Pressure switch calibration and adjustment
9. Safety Requirements
• Lockout/tagout procedures for pump systems
• Electrical shock hazards in wet environments
• Confined space safety (well pits and casings)
• PPE requirements (gloves, eye protection, dielectric safety gear)
• Safe lifting and handling of submersible pumps
10. Well System Sanitation & Protection
• Preventing groundwater contamination
• Proper sealing of wellheads
• Backflow prevention principles
• Chemical treatment considerations (chlorination after installation)
• Protection of potable water systems
11. Codes, Standards & Compliance
• Texas groundwater protection rules
• Well construction standards (casing, sealing, depth requirements)
• Manufacturer installation specifications
• Electrical code alignment for pump systems
• Inspection and approval requirements
12. System Maintenance & Repair
• Routine inspection of pump performance
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• Replacing pressure switches and capacitors
• Motor burnout diagnosis and replacement procedures
• Leak detection and pipe repair methods
• Seasonal maintenance considerations
13. Endorsement-Specific Knowledge (Single Phase Focus)
• Difference between single-phase and three-phase pump systems
• Residential pump sizing and selection
• Voltage drop issues in long rural well runs
• Limitations of single-phase motor horsepower ratings
• Energy efficiency considerations in small pump systems
14. Scenario-Based Exam Focus
• Selecting correct pump type for a residential well
• Diagnosing failed capacitor or control box
• Fixing low-pressure system complaints
• Correct wiring of pressure switch and control box
• Ensuring compliance with Texas well installation rules
• Determining cause of pump short cycling or overheating
Texas Single-Phase Pump Exam — MCQ Practice Batch 1 (1–50)
1. What is the primary legal requirement for a licensed Texas pump installer under TDLR rules?
A. Work without documentation if supervised
B. Follow all Chapter 1901–1902 regulations and maintain proper licensing
C. Install pumps without electrical knowledge
D. Avoid reporting installation details
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Answer: B
Rationale: Texas law requires licensed installers to comply with TDLR rules governing pump installation
and documentation.
2. What is the main function of a start capacitor in a single-phase pump motor?
A. Reduce water pressure
B. Provide initial torque to start the motor
C. Increase pipe friction
D. Prevent water contamination
Answer: B
Rationale: Start capacitors create phase shift to help motors start under load.
3. Which formula correctly represents electrical power in a single-phase system?
Texas Single-Phase Pump Exam (TDLR Pump Installer –
Single Phase Endorsement) COMPLETE QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS YEAR JUST
RELEASED
Texas Single-Phase Pump Exam (TDLR Pump Installer – Single Phase Endorsement) — Summarized
Coverage
The Texas Single-Phase Pump Exam is part of the **Texas Department of Licensing and Regulation
(TDLR) Water Well Pump Installer licensing system. It evaluates knowledge required to install, repair,
and service single-phase water well pump systems, including electrical controls, hydraulics, safety, and
Texas water well rules under Chapters 1901–1902.
This exam is commonly associated with the Pump Installer Single Phase (P) endorsement, which
authorizes residential/light commercial pump installation work.
1. Texas Pump Installer Laws & Licensing Rules
• TDLR Water Well Driller & Pump Installer Act (Ch. 1901–1902)
• Scope of Pump Installer (Single Phase) endorsement
• Apprentice supervision requirements and legal limitations
• Reporting obligations for well and pump installations
• Continuing education and renewal requirements
2. Single-Phase Electrical Fundamentals
• AC single-phase power theory (voltage, current, resistance)
• Ohm’s Law and power calculations (P = V × I)
• Motor starting vs running current (inrush current)
• Capacitors in single-phase motor start/run circuits
• Grounding and electrical safety requirements
3. Pump Motors & Control Systems
• Single-phase submersible motor types
• Start capacitors and relay systems
• Control boxes and pressure switch operation
• Float switches and automatic pump cycling
• Motor protection (overload relays, dry-run protection)
4. Water Well Pump System Components
• Submersible pump assemblies
• Jet pumps (shallow vs deep well systems)
• Drop pipe and column pipe installation
• Check valves and foot valves
• Pressure tanks and system pressure regulation
5. Hydraulics & Pump Performance
• Pump head, flow rate (GPM), and pressure relationships
• Total dynamic head (TDH) concepts
, Page 2 of 119
• Friction loss in piping systems
• Suction lift limitations (jet pumps)
• Pump curve interpretation basics
6. Installation Practices
• Proper lowering and setting of submersible pumps
• Torque arrestors and cable guards
• Splicing waterproof electrical connections
• Pitless adapter installation
• Well cap and sanitary seal requirements
7. Electrical Wiring & Connections
• Single-phase wiring diagrams for pump systems
• Correct conductor sizing for voltage drop
• Underground wiring requirements for wells
• Control box wiring and troubleshooting
• Splicing and insulation techniques for wet environments
8. Testing & Troubleshooting
• Diagnosing no-start, low-pressure, or short cycling issues
• Checking capacitors and start relays
• Measuring amp draw and voltage imbalance
• Identifying clogged impellers or check valve failures
• Pressure switch calibration and adjustment
9. Safety Requirements
• Lockout/tagout procedures for pump systems
• Electrical shock hazards in wet environments
• Confined space safety (well pits and casings)
• PPE requirements (gloves, eye protection, dielectric safety gear)
• Safe lifting and handling of submersible pumps
10. Well System Sanitation & Protection
• Preventing groundwater contamination
• Proper sealing of wellheads
• Backflow prevention principles
• Chemical treatment considerations (chlorination after installation)
• Protection of potable water systems
11. Codes, Standards & Compliance
• Texas groundwater protection rules
• Well construction standards (casing, sealing, depth requirements)
• Manufacturer installation specifications
• Electrical code alignment for pump systems
• Inspection and approval requirements
12. System Maintenance & Repair
• Routine inspection of pump performance
, Page 3 of 119
• Replacing pressure switches and capacitors
• Motor burnout diagnosis and replacement procedures
• Leak detection and pipe repair methods
• Seasonal maintenance considerations
13. Endorsement-Specific Knowledge (Single Phase Focus)
• Difference between single-phase and three-phase pump systems
• Residential pump sizing and selection
• Voltage drop issues in long rural well runs
• Limitations of single-phase motor horsepower ratings
• Energy efficiency considerations in small pump systems
14. Scenario-Based Exam Focus
• Selecting correct pump type for a residential well
• Diagnosing failed capacitor or control box
• Fixing low-pressure system complaints
• Correct wiring of pressure switch and control box
• Ensuring compliance with Texas well installation rules
• Determining cause of pump short cycling or overheating
Texas Single-Phase Pump Exam — MCQ Practice Batch 1 (1–50)
1. What is the primary legal requirement for a licensed Texas pump installer under TDLR rules?
A. Work without documentation if supervised
B. Follow all Chapter 1901–1902 regulations and maintain proper licensing
C. Install pumps without electrical knowledge
D. Avoid reporting installation details
, Page 4 of 119
Answer: B
Rationale: Texas law requires licensed installers to comply with TDLR rules governing pump installation
and documentation.
2. What is the main function of a start capacitor in a single-phase pump motor?
A. Reduce water pressure
B. Provide initial torque to start the motor
C. Increase pipe friction
D. Prevent water contamination
Answer: B
Rationale: Start capacitors create phase shift to help motors start under load.
3. Which formula correctly represents electrical power in a single-phase system?
