Texas Irrigator License Exam Practice Test 2026/2027
Questions and Answers 100% Verified
Section A: Irrigation Fundamentals & System Components (Questions
1–15)
Q1: Which Texas state agency is the governing body for irrigation licensing in Texas?
A. Texas Department of Agriculture
B. Texas Commission on Environmental Quality (TCEQ) [CORRECT]
C. Texas Water Development Board
D. Texas Parks and Wildlife Department
Correct Answer: B
Rationale: The Texas Commission on Environmental Quality (TCEQ) is the governing
body for irrigation licensing in Texas, overseeing the Irrigator Advisory Council, licensing
examinations, and enforcement of 30 TAC Chapter 344 regulations.
Q2: The Irrigator Advisory Council (IAC) consists of how many members, and what is
the composition?
A. 6 members, all licensed irrigators
B. 9 members (6 licensed irrigators and 3 public representatives) [CORRECT]
C. 12 members (9 licensed irrigators and 3 public representatives)
D. 15 members, all public representatives
Correct Answer: B
Rationale: The Irrigator Advisory Council has 9 members appointed by the TCEQ
commission: 6 licensed irrigators and 3 public representatives. This composition
ensures both industry expertise and public interest in irrigation regulation.
,Q3: A licensed irrigator in Texas must complete how many Continuing Education Units
(CEUs) for license renewal?
A. 12 CEUs every 2 years
B. 24 CEUs for a 3-year license renewal period [CORRECT]
C. 36 CEUs every 4 years
D. 8 CEUs annually
Correct Answer: B
Rationale: Texas requires 24 CEUs for renewal of a Landscape Irrigator license over the
3-year renewal period. This ensures licensed irrigators stay current with regulations,
technology, and best practices.
Q4: To obtain a Landscape Irrigator (LI) license in Texas, an applicant must:
A. Complete a 2-year irrigation technology degree
B. Pass the 6-hour TCEQ examination; no education or work experience is required
[CORRECT]
C. Have 5 years of documented irrigation installation experience
D. Complete an apprenticeship under a licensed irrigator
Correct Answer: B
Rationale: The Landscape Irrigator license requires passing the 6-hour TCEQ
examination. Unlike many trades, Texas does not require formal education or prior work
experience for the LI license, though practical knowledge is essential for exam success.
Q5: A licensed irrigator is asked by a client to test a backflow prevention device on their
irrigation system. The irrigator should:
A. Perform the test and charge a separate fee for the service
B. Refuse, as a licensed irrigator cannot test a backflow device [CORRECT]
C. Perform the test only if they hold a separate plumbing license
D. Refer the client to the TCEQ for testing
Correct Answer: B
Rationale: A licensed irrigator is prohibited from testing backflow prevention devices.
Backflow testing must be performed by a licensed backflow prevention assembly tester
(BPAT). This restriction protects public water supply by ensuring qualified personnel
perform critical safety tests.
Q6: Every written irrigation contract in Texas must include which mandatory statement?
,A. "This contract is binding upon both parties for a period of one year."
B. "Irrigation in Texas is regulated by the Texas Commission on Environmental Quality,
P.O. Box 13087, Austin, Texas 78711-3087" [CORRECT]
C. "All work performed under this contract carries a lifetime warranty."
D. "Payment is due in full upon completion of installation."
Correct Answer: B
Rationale: TCEQ regulations mandate that all written irrigation contracts include the
specific regulatory statement identifying TCEQ as the governing body with the Austin
P.O. Box address. This ensures consumers know where to file complaints and verify
licensure.
Q7: An irrigation system is defined under Texas regulations as:
A. Any device that delivers water to plants
B. A permanent assembly for landscape watering, dust reduction, or erosion control
[CORRECT]
C. A temporary hose and sprinkler setup for residential use
D. Any plumbing fixture connected to a water supply
Correct Answer: B
Rationale: Texas regulations define an irrigation system as a permanent assembly for
landscape watering, dust reduction, or erosion control. Temporary hose-end sprinklers
and standard plumbing fixtures are not regulated as irrigation systems under 30 TAC
Chapter 344.
Q8: Before installing an irrigation system, a licensed irrigator must:
A. Obtain a building permit from the county clerk
B. Call 811 to locate buried utility lines [CORRECT]
C. Notify the TCEQ regional office in writing
D. Post a bond with the state of Texas
Correct Answer: B
Rationale: Texas law requires calling 811 (Texas One Call) before excavation to locate
buried utility lines. This prevents damage to gas, electric, water, and
telecommunications infrastructure and is a critical safety requirement for all irrigation
installations.
Q9: PVC pipe used in irrigation systems is:
, A. UV resistant and suitable for above-ground installation without protection
B. Not UV resistant and will degrade when exposed to sunlight [CORRECT]
C. Flexible and connected with insert fittings
D. Recommended for all drip irrigation applications
Correct Answer: B
Rationale: PVC pipe is not UV resistant and will become brittle and crack when exposed
to prolonged sunlight. It must be buried or protected if installed above ground. Poly
pipe, not PVC, is UV resistant and flexible for drip applications.
Q10: Polyethylene (poly) pipe in irrigation systems is characterized by:
A. Rigid construction requiring solvent welding
B. UV resistance, flexibility, and use with insert fittings [CORRECT]
C. High pressure rating exceeding 200 psi
D. Requirement for buried installation only
Correct Answer: B
Rationale: Poly pipe is UV resistant, flexible, and connected with insert fittings and
clamps. It is commonly used for drip irrigation laterals and swing joints. Its flexibility
makes it ideal for areas subject to ground movement, unlike rigid PVC.
Q11: The proper procedure for solvent welding PVC pipe includes:
A. Apply solvent only, push together, and allow 1 hour to cure
B. Cut pipe square, apply primer, apply solvent, quarter turn, and wipe excess [CORRECT]
C. Apply primer only, push together, and allow 24 hours before pressurizing
D. Heat the pipe ends and fuse them together
Correct Answer: B
Rationale: Solvent welding requires cutting the pipe square, applying primer to clean and
soften the surfaces, applying solvent cement, joining with a quarter turn to spread the
cement evenly, and wiping excess. Primer and solvent are both required; heat fusion is
for different pipe materials.
Q12: Irrigation control wire must be buried with a minimum of:
A. 2 inches of backfill
B. 6 inches of backfill [CORRECT]
C. 12 inches of backfill
D. 18 inches of backfill
Questions and Answers 100% Verified
Section A: Irrigation Fundamentals & System Components (Questions
1–15)
Q1: Which Texas state agency is the governing body for irrigation licensing in Texas?
A. Texas Department of Agriculture
B. Texas Commission on Environmental Quality (TCEQ) [CORRECT]
C. Texas Water Development Board
D. Texas Parks and Wildlife Department
Correct Answer: B
Rationale: The Texas Commission on Environmental Quality (TCEQ) is the governing
body for irrigation licensing in Texas, overseeing the Irrigator Advisory Council, licensing
examinations, and enforcement of 30 TAC Chapter 344 regulations.
Q2: The Irrigator Advisory Council (IAC) consists of how many members, and what is
the composition?
A. 6 members, all licensed irrigators
B. 9 members (6 licensed irrigators and 3 public representatives) [CORRECT]
C. 12 members (9 licensed irrigators and 3 public representatives)
D. 15 members, all public representatives
Correct Answer: B
Rationale: The Irrigator Advisory Council has 9 members appointed by the TCEQ
commission: 6 licensed irrigators and 3 public representatives. This composition
ensures both industry expertise and public interest in irrigation regulation.
,Q3: A licensed irrigator in Texas must complete how many Continuing Education Units
(CEUs) for license renewal?
A. 12 CEUs every 2 years
B. 24 CEUs for a 3-year license renewal period [CORRECT]
C. 36 CEUs every 4 years
D. 8 CEUs annually
Correct Answer: B
Rationale: Texas requires 24 CEUs for renewal of a Landscape Irrigator license over the
3-year renewal period. This ensures licensed irrigators stay current with regulations,
technology, and best practices.
Q4: To obtain a Landscape Irrigator (LI) license in Texas, an applicant must:
A. Complete a 2-year irrigation technology degree
B. Pass the 6-hour TCEQ examination; no education or work experience is required
[CORRECT]
C. Have 5 years of documented irrigation installation experience
D. Complete an apprenticeship under a licensed irrigator
Correct Answer: B
Rationale: The Landscape Irrigator license requires passing the 6-hour TCEQ
examination. Unlike many trades, Texas does not require formal education or prior work
experience for the LI license, though practical knowledge is essential for exam success.
Q5: A licensed irrigator is asked by a client to test a backflow prevention device on their
irrigation system. The irrigator should:
A. Perform the test and charge a separate fee for the service
B. Refuse, as a licensed irrigator cannot test a backflow device [CORRECT]
C. Perform the test only if they hold a separate plumbing license
D. Refer the client to the TCEQ for testing
Correct Answer: B
Rationale: A licensed irrigator is prohibited from testing backflow prevention devices.
Backflow testing must be performed by a licensed backflow prevention assembly tester
(BPAT). This restriction protects public water supply by ensuring qualified personnel
perform critical safety tests.
Q6: Every written irrigation contract in Texas must include which mandatory statement?
,A. "This contract is binding upon both parties for a period of one year."
B. "Irrigation in Texas is regulated by the Texas Commission on Environmental Quality,
P.O. Box 13087, Austin, Texas 78711-3087" [CORRECT]
C. "All work performed under this contract carries a lifetime warranty."
D. "Payment is due in full upon completion of installation."
Correct Answer: B
Rationale: TCEQ regulations mandate that all written irrigation contracts include the
specific regulatory statement identifying TCEQ as the governing body with the Austin
P.O. Box address. This ensures consumers know where to file complaints and verify
licensure.
Q7: An irrigation system is defined under Texas regulations as:
A. Any device that delivers water to plants
B. A permanent assembly for landscape watering, dust reduction, or erosion control
[CORRECT]
C. A temporary hose and sprinkler setup for residential use
D. Any plumbing fixture connected to a water supply
Correct Answer: B
Rationale: Texas regulations define an irrigation system as a permanent assembly for
landscape watering, dust reduction, or erosion control. Temporary hose-end sprinklers
and standard plumbing fixtures are not regulated as irrigation systems under 30 TAC
Chapter 344.
Q8: Before installing an irrigation system, a licensed irrigator must:
A. Obtain a building permit from the county clerk
B. Call 811 to locate buried utility lines [CORRECT]
C. Notify the TCEQ regional office in writing
D. Post a bond with the state of Texas
Correct Answer: B
Rationale: Texas law requires calling 811 (Texas One Call) before excavation to locate
buried utility lines. This prevents damage to gas, electric, water, and
telecommunications infrastructure and is a critical safety requirement for all irrigation
installations.
Q9: PVC pipe used in irrigation systems is:
, A. UV resistant and suitable for above-ground installation without protection
B. Not UV resistant and will degrade when exposed to sunlight [CORRECT]
C. Flexible and connected with insert fittings
D. Recommended for all drip irrigation applications
Correct Answer: B
Rationale: PVC pipe is not UV resistant and will become brittle and crack when exposed
to prolonged sunlight. It must be buried or protected if installed above ground. Poly
pipe, not PVC, is UV resistant and flexible for drip applications.
Q10: Polyethylene (poly) pipe in irrigation systems is characterized by:
A. Rigid construction requiring solvent welding
B. UV resistance, flexibility, and use with insert fittings [CORRECT]
C. High pressure rating exceeding 200 psi
D. Requirement for buried installation only
Correct Answer: B
Rationale: Poly pipe is UV resistant, flexible, and connected with insert fittings and
clamps. It is commonly used for drip irrigation laterals and swing joints. Its flexibility
makes it ideal for areas subject to ground movement, unlike rigid PVC.
Q11: The proper procedure for solvent welding PVC pipe includes:
A. Apply solvent only, push together, and allow 1 hour to cure
B. Cut pipe square, apply primer, apply solvent, quarter turn, and wipe excess [CORRECT]
C. Apply primer only, push together, and allow 24 hours before pressurizing
D. Heat the pipe ends and fuse them together
Correct Answer: B
Rationale: Solvent welding requires cutting the pipe square, applying primer to clean and
soften the surfaces, applying solvent cement, joining with a quarter turn to spread the
cement evenly, and wiping excess. Primer and solvent are both required; heat fusion is
for different pipe materials.
Q12: Irrigation control wire must be buried with a minimum of:
A. 2 inches of backfill
B. 6 inches of backfill [CORRECT]
C. 12 inches of backfill
D. 18 inches of backfill
