Exam Practice Questions And Correct

Certified Crop Irrigation Technician Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• What is the primary goal of agricultural irrigation?
• To increase soil erosion
• To improve crop uniformity
• To supply adequate water for optimal crop growth
• To decrease soil nutrients

Rationale: Irrigation’s main purpose is to provide crops with the water

needed for optimal physiological and yield development.

• Which unit is commonly used to measure irrigation water application? 1 / 4

• Cubic centimeters
• Liters per second
• Bushels
• Inches or millimeters of water depth

Rationale: Irrigation amounts are expressed as depth of water applied over

an area, typically inches or millimeters.

• What factor most influences evapotranspiration (ET) rates?
• Soil texture
• Fertilizer type
• Temperature and solar radiation
• Crop color

Rationale: ET increases with higher temperature and sunlight intensity

because plants lose more moisture.

• Which soil texture holds the most plant-available water?
• Sand
• Loam
• Clay
• Gravel

Rationale: Loam soils have a balanced mix of sand, silt, and clay,

maximizing available water capacity for crops. 2 / 4

• What is the main disadvantage of flood irrigation?
• High labor requirement
• High fertilizer cost
• Low water use efficiency
• Requires electricity

Rationale: Flood irrigation typically wastes water because much is lost as

runoff or deep percolation.

• Drip irrigation is best suited for which purpose?
• Flooding entire fields
• Delivering water directly to plant roots
• Cooling livestock
• Storing water in ponds

Rationale: Drip systems target the root zone precisely, improving efficiency

and reducing evaporation.

• Which component reduces pressure in an irrigation system?
• Filter
• Pressure regulator
• Emitter
• Valve box 3 / 4

Rationale: Pressure regulators ensure safe and consistent operating

pressure for irrigation lines.

8. A sprinkler nozzle with a smaller diameter will generally produce:

• Larger droplets
• Lower speed water
• Smaller droplets
• No difference

Rationale: Smaller nozzle openings force water through more tightly,

creating finer droplets.

• What is the purpose of an irrigation filter?
• Increase pipe pressure
• Reduce water temperature
• Remove debris from irrigation water
• Strengthen pipe walls

Rationale: Filters prevent clogging in emitters and sprinklers by removing

particles.

• Which irrigation method has the highest uniformity potential?
• / 4