CERTIFIED IRRIGATION CONTRACTOR /
DESIGNER TEST BANK NEWEST 2026 |
IRRIGATION ASSOCIATION CID CIC | REAL
EXAM Q&A + DETAILED RATIONALES A+
BUNDLE 2026
Question
During a system inspection, the auditor will make note of the source of water, backflow
device, water meter, controller settings, and whether the water is potable, irrigation, or
from a pond. What is the primary purpose of this inspection?
A) To determine the age of the irrigation system
B) To identify the system components and water source for auditing purposes
C) To calculate the cost of water usage
D) To evaluate soil conditions
Expert Rationale: The system inspection identifies the source of water, backflow device,
water meter, controller settings, and water type (potable, irrigation, pond). This is the first
step in the irrigation performance auditing process, establishing baseline information
before system testing and performance calculations. It ensures the auditor understands
the system's components and water source.
Question
What is the first step in the irrigation performance auditing process?
A) System testing
B) Sprinkler performance calculations
C) System and site inspection
D) Report of findings
Expert Rationale: The Steps of Irrigation Performance Auditing are: Step 1: System and site
inspection, Step 2: System tune-up, Step 3: System testing, Step 4: Sprinkler performance
calculations, and Step 5: Report of findings. The system and site inspection is the
foundational step that informs the rest of the audit.
,Question
How many gallons are in 100 cubic feet of water?
A) 7.48 gallons
B) 74.8 gallons
C) 748 gallons
D) 7480 gallons
Expert Rationale: There are 748 gallons per 100 cubic feet (or 7.48 gallons per cubic foot).
This conversion is essential for calculating water usage and irrigation system performance.
Understanding these conversions helps auditors quantify water application rates and
system efficiency.
Question
When reading a water meter, why are the last two digits often fixed?
A) They represent the cost of water
B) They must be read using the sweeping hand on the dial
C) They indicate the flow rate
D) They are used for billing purposes only
Expert Rationale: The last two digits are often fixed on a water meter because the
sweeping hand on the dial is used to read the current flow rate and total volume accurately.
This design allows for precise measurement of water consumption. Auditors must
understand meter reading to calculate water usage.
Question
Once the valves are located, what should the auditor note?
A) Only the valve size
B) Brand and model number, along with the size, and note any damage or leaks
C) The color of the valve
D) The age of the valve
Expert Rationale: The auditor should note the brand and model number, along with the
size, and document any damage or leaks. This information helps identify replacement parts
and assess system condition. Proper documentation is essential for accurate reporting and
recommendations.
, Question
How long should a zone be run to determine the gallons per minute (GPM) on a zone?
A) 1 minute
B) 3 to 5 minutes
C) 10 minutes
D) 15 minutes
Expert Rationale: The zone should be run for 3 to 5 minutes to get an average GPM reading.
This duration allows the system to stabilize and provides a representative flow rate.
Running the system for a shorter or longer period may yield inaccurate measurements.
Question
What is the accepted pressure variation within a sprinkler zone?
A) No more than 5%
B) No more than 10%
C) No more than 15%
D) No more than 20%
Expert Rationale: The accepted pressure variation within a sprinkler zone is no more than
10%. If pressure varies by more than 20% from the highest to lowest within a zone, the
system should be evaluated for potential problems such as undersized piping or clogged
nozzles.
Question
What is the optimal method for using a pitot tube to measure pressure?
A) Inserting the tube directly into the nozzle
B) Placing the pitot tube directly in the stream a short distance from the nozzle
C) Measuring at the base of the sprinkler
D) Measuring at the controller
Expert Rationale: The optimal method for using a pitot tube is to place it directly in the
stream a short distance from the nozzle, defined as half the radius of the sprinkler nozzle
orifice. The field version (inserting the tube directly into the nozzle) will result in a slightly
elevated reading. The optimal method provides more accurate pressure readings.
DESIGNER TEST BANK NEWEST 2026 |
IRRIGATION ASSOCIATION CID CIC | REAL
EXAM Q&A + DETAILED RATIONALES A+
BUNDLE 2026
Question
During a system inspection, the auditor will make note of the source of water, backflow
device, water meter, controller settings, and whether the water is potable, irrigation, or
from a pond. What is the primary purpose of this inspection?
A) To determine the age of the irrigation system
B) To identify the system components and water source for auditing purposes
C) To calculate the cost of water usage
D) To evaluate soil conditions
Expert Rationale: The system inspection identifies the source of water, backflow device,
water meter, controller settings, and water type (potable, irrigation, pond). This is the first
step in the irrigation performance auditing process, establishing baseline information
before system testing and performance calculations. It ensures the auditor understands
the system's components and water source.
Question
What is the first step in the irrigation performance auditing process?
A) System testing
B) Sprinkler performance calculations
C) System and site inspection
D) Report of findings
Expert Rationale: The Steps of Irrigation Performance Auditing are: Step 1: System and site
inspection, Step 2: System tune-up, Step 3: System testing, Step 4: Sprinkler performance
calculations, and Step 5: Report of findings. The system and site inspection is the
foundational step that informs the rest of the audit.
,Question
How many gallons are in 100 cubic feet of water?
A) 7.48 gallons
B) 74.8 gallons
C) 748 gallons
D) 7480 gallons
Expert Rationale: There are 748 gallons per 100 cubic feet (or 7.48 gallons per cubic foot).
This conversion is essential for calculating water usage and irrigation system performance.
Understanding these conversions helps auditors quantify water application rates and
system efficiency.
Question
When reading a water meter, why are the last two digits often fixed?
A) They represent the cost of water
B) They must be read using the sweeping hand on the dial
C) They indicate the flow rate
D) They are used for billing purposes only
Expert Rationale: The last two digits are often fixed on a water meter because the
sweeping hand on the dial is used to read the current flow rate and total volume accurately.
This design allows for precise measurement of water consumption. Auditors must
understand meter reading to calculate water usage.
Question
Once the valves are located, what should the auditor note?
A) Only the valve size
B) Brand and model number, along with the size, and note any damage or leaks
C) The color of the valve
D) The age of the valve
Expert Rationale: The auditor should note the brand and model number, along with the
size, and document any damage or leaks. This information helps identify replacement parts
and assess system condition. Proper documentation is essential for accurate reporting and
recommendations.
, Question
How long should a zone be run to determine the gallons per minute (GPM) on a zone?
A) 1 minute
B) 3 to 5 minutes
C) 10 minutes
D) 15 minutes
Expert Rationale: The zone should be run for 3 to 5 minutes to get an average GPM reading.
This duration allows the system to stabilize and provides a representative flow rate.
Running the system for a shorter or longer period may yield inaccurate measurements.
Question
What is the accepted pressure variation within a sprinkler zone?
A) No more than 5%
B) No more than 10%
C) No more than 15%
D) No more than 20%
Expert Rationale: The accepted pressure variation within a sprinkler zone is no more than
10%. If pressure varies by more than 20% from the highest to lowest within a zone, the
system should be evaluated for potential problems such as undersized piping or clogged
nozzles.
Question
What is the optimal method for using a pitot tube to measure pressure?
A) Inserting the tube directly into the nozzle
B) Placing the pitot tube directly in the stream a short distance from the nozzle
C) Measuring at the base of the sprinkler
D) Measuring at the controller
Expert Rationale: The optimal method for using a pitot tube is to place it directly in the
stream a short distance from the nozzle, defined as half the radius of the sprinkler nozzle
orifice. The field version (inserting the tube directly into the nozzle) will result in a slightly
elevated reading. The optimal method provides more accurate pressure readings.
