TEXAS IRRIGATION TECHNICIAN ACTUAL EXAM REVIEW 150
QUESTIONS AND CORRECT ANSWERS WITH EXPERT DETAILED
RATIONALES GUARANTEE A+ GRADE
1. Who composes the Irrigator Council?
A. 5 Irrigators, 4 Public members
B. 6 Irrigators, 3 Public members, all from the same state
C. 3 Irrigators, 6 Public members
D. 4 Irrigators, 5 Public members
Answer: B
Rationale: The Irrigator Council is made up of 6 irrigators and 3 public members, all from the same state,
to provide proper representation.
2. What is the purpose of the Irrigator Council?
A. Enforce irrigation laws
B. Provide advice on matters concerning irrigation
C. Install irrigation systems
D. Inspect irrigation systems
Answer: B
Rationale: The council provides guidance on irrigation practices and regulations.
3. What is a possible consequence of installing a system without a license?
A. A warning
B. Community service
C. Being charged with a Class C misdemeanor
D. System inspection only
Answer: C
Rationale: Installing an irrigation system without a proper license is illegal and can result in a Class C
misdemeanor charge.
4. What is Absorption Rate?
A. Rate of water moving through pipes
B. How fast the soil will accept water
C. The pressure at the sprinkler head
D. Flow rate of a pump
Answer: B
Rationale: Absorption rate refers to how quickly soil can absorb water, which is important for proper
irrigation scheduling.
,5. What is Actual Head Pressure?
A. The pressure at the pump
B. Operating pressure measured at the base of a sprinkler head
C. Maximum system pressure
D. Pressure lost in friction
Answer: B
Rationale: Actual head pressure is the working pressure at the base of a sprinkler head, which
determines proper operation.
6. How do you calculate Actual Head Pressure?
A. Add friction loss to static pressure
B. Subtract all pressure losses from static pressure
C. Measure pressure at the pump only
D. Multiply flow rate by pipe diameter
Answer: B
Rationale: To calculate actual head pressure, subtract all losses (friction, elevation, fittings) from the
system’s static pressure.
7. What is an Air Gap?
A. A filter for water
B. A small pipe joint
C. A complete physical separation between the free-flowing discharge end of a potable water supply
pipeline and an open or non-pressure receiving vessel
D. A pressure relief valve
Answer: C
Rationale: An air gap ensures there is no risk of contaminated water flowing back into the potable water
supply.
8. What is Application Rate?
A. Flow rate in a pipe
B. Rate that a head applies water to the area it’s spraying
C. Pump pressure
D. Soil absorption
Answer: B
Rationale: Application rate describes how quickly water is applied to a landscape by a sprinkler or
emitter.
,9. What term is Application Rate synonymous with?
A. Flow Rate
B. Precipitation Rate
C. Evaporation Rate
D. Velocity
Answer: B
Rationale: Application rate and precipitation rate both describe the rate at which water is delivered to
the landscape.
10. What is Arc?
A. The flow rate of a sprinkler
B. The surface area of the landscape that the head will provide water (e.g., half, full, 90, 25 degrees)
C. The diameter of a sprinkler head
D. The pipe schedule
Answer: B
Rationale: Arc determines the angle of coverage a sprinkler head provides.
11. What are as-built plans?
A. Original design plans only
B. A corrected or redrawn plan showing the location of all major components of a system
C. Only the plumbing layout
D. Only the sprinkler head locations
Answer: B
Rationale: As-built plans are updated drawings reflecting the actual installed system.
12. What does A.W.W.A. stand for?
A. American Water Works Association
B. Association of Water and Waste Agencies
C. American Waste Water Association
D. Association of Water Works and Appliances
Answer: A
Rationale: A.W.W.A. is the American Water Works Association, a leading authority on water system
standards.
13. What is Backflow?
A. Forward flow of water
B. The undesirable reverse flow of water in a piping system
C. Water pressure surge
D. Water velocity
, Answer: B
Rationale: Backflow is water flowing in the opposite direction, potentially contaminating potable water.
14. What is Back Pressure?
A. Pressure at the pump
B. Condition that can happen due to elevation, pumps, or pressure
C. Static water pressure
D. Water velocity
Answer: B
Rationale: Back pressure occurs when downstream pressure exceeds supply pressure, causing reverse
flow.
15. What is Back Siphonage?
A. Forward flow in pipes
B. Water leaking from sprinklers
C. Backflow due to sub-atmospheric pressure (e.g., break in city main, fire hydrant use)
D. Pump overpressure
Answer: C
Rationale: Back siphonage is caused by a vacuum that pulls water back into the potable supply.
16. What is Backflow Prevention?
A. Pump installation
B. Pipe slope
C. A mechanical means to prevent a backflow
D. Valve maintenance
Answer: C
Rationale: Backflow prevention devices protect potable water from contamination.
17. What is a Backflow Device?
A. Valve for water flow
B. Pressure regulator
C. Any approved device that prevents an undesirable reversal of water flow
D. Flow meter
Answer: C
Rationale: Backflow devices mechanically prevent contaminated water from re-entering the potable
system.
18. 1 Column Foot of Water = ?
A. .433 psi
QUESTIONS AND CORRECT ANSWERS WITH EXPERT DETAILED
RATIONALES GUARANTEE A+ GRADE
1. Who composes the Irrigator Council?
A. 5 Irrigators, 4 Public members
B. 6 Irrigators, 3 Public members, all from the same state
C. 3 Irrigators, 6 Public members
D. 4 Irrigators, 5 Public members
Answer: B
Rationale: The Irrigator Council is made up of 6 irrigators and 3 public members, all from the same state,
to provide proper representation.
2. What is the purpose of the Irrigator Council?
A. Enforce irrigation laws
B. Provide advice on matters concerning irrigation
C. Install irrigation systems
D. Inspect irrigation systems
Answer: B
Rationale: The council provides guidance on irrigation practices and regulations.
3. What is a possible consequence of installing a system without a license?
A. A warning
B. Community service
C. Being charged with a Class C misdemeanor
D. System inspection only
Answer: C
Rationale: Installing an irrigation system without a proper license is illegal and can result in a Class C
misdemeanor charge.
4. What is Absorption Rate?
A. Rate of water moving through pipes
B. How fast the soil will accept water
C. The pressure at the sprinkler head
D. Flow rate of a pump
Answer: B
Rationale: Absorption rate refers to how quickly soil can absorb water, which is important for proper
irrigation scheduling.
,5. What is Actual Head Pressure?
A. The pressure at the pump
B. Operating pressure measured at the base of a sprinkler head
C. Maximum system pressure
D. Pressure lost in friction
Answer: B
Rationale: Actual head pressure is the working pressure at the base of a sprinkler head, which
determines proper operation.
6. How do you calculate Actual Head Pressure?
A. Add friction loss to static pressure
B. Subtract all pressure losses from static pressure
C. Measure pressure at the pump only
D. Multiply flow rate by pipe diameter
Answer: B
Rationale: To calculate actual head pressure, subtract all losses (friction, elevation, fittings) from the
system’s static pressure.
7. What is an Air Gap?
A. A filter for water
B. A small pipe joint
C. A complete physical separation between the free-flowing discharge end of a potable water supply
pipeline and an open or non-pressure receiving vessel
D. A pressure relief valve
Answer: C
Rationale: An air gap ensures there is no risk of contaminated water flowing back into the potable water
supply.
8. What is Application Rate?
A. Flow rate in a pipe
B. Rate that a head applies water to the area it’s spraying
C. Pump pressure
D. Soil absorption
Answer: B
Rationale: Application rate describes how quickly water is applied to a landscape by a sprinkler or
emitter.
,9. What term is Application Rate synonymous with?
A. Flow Rate
B. Precipitation Rate
C. Evaporation Rate
D. Velocity
Answer: B
Rationale: Application rate and precipitation rate both describe the rate at which water is delivered to
the landscape.
10. What is Arc?
A. The flow rate of a sprinkler
B. The surface area of the landscape that the head will provide water (e.g., half, full, 90, 25 degrees)
C. The diameter of a sprinkler head
D. The pipe schedule
Answer: B
Rationale: Arc determines the angle of coverage a sprinkler head provides.
11. What are as-built plans?
A. Original design plans only
B. A corrected or redrawn plan showing the location of all major components of a system
C. Only the plumbing layout
D. Only the sprinkler head locations
Answer: B
Rationale: As-built plans are updated drawings reflecting the actual installed system.
12. What does A.W.W.A. stand for?
A. American Water Works Association
B. Association of Water and Waste Agencies
C. American Waste Water Association
D. Association of Water Works and Appliances
Answer: A
Rationale: A.W.W.A. is the American Water Works Association, a leading authority on water system
standards.
13. What is Backflow?
A. Forward flow of water
B. The undesirable reverse flow of water in a piping system
C. Water pressure surge
D. Water velocity
, Answer: B
Rationale: Backflow is water flowing in the opposite direction, potentially contaminating potable water.
14. What is Back Pressure?
A. Pressure at the pump
B. Condition that can happen due to elevation, pumps, or pressure
C. Static water pressure
D. Water velocity
Answer: B
Rationale: Back pressure occurs when downstream pressure exceeds supply pressure, causing reverse
flow.
15. What is Back Siphonage?
A. Forward flow in pipes
B. Water leaking from sprinklers
C. Backflow due to sub-atmospheric pressure (e.g., break in city main, fire hydrant use)
D. Pump overpressure
Answer: C
Rationale: Back siphonage is caused by a vacuum that pulls water back into the potable supply.
16. What is Backflow Prevention?
A. Pump installation
B. Pipe slope
C. A mechanical means to prevent a backflow
D. Valve maintenance
Answer: C
Rationale: Backflow prevention devices protect potable water from contamination.
17. What is a Backflow Device?
A. Valve for water flow
B. Pressure regulator
C. Any approved device that prevents an undesirable reversal of water flow
D. Flow meter
Answer: C
Rationale: Backflow devices mechanically prevent contaminated water from re-entering the potable
system.
18. 1 Column Foot of Water = ?
A. .433 psi
