OSSF INSTALLER 1 LICENSE EXAM 2026 PRACTICE QUESTIONS AND CORRECT ANSWERS FULL PREPARATION RESOURCE GRADED A+

OSSF INSTALLER 1 LICENSE EXAM 2026
PRACTICE QUESTIONS AND CORRECT
ANSWERS FULL PREPARATION RESOURCE
GRADED A+

⩥ Length x Width x Height
Answer: Volume


⩥ V=πr² x H(height)
Answer: Volume Formula


⩥ Length x Width x Height x 7.48
Answer: Capacity


⩥ C=πr²xHx7.48
Answer: Capacity Formula


⩥ 50feet
Answer: Public Water Wells from Tanks


⩥ 150feet

,Answer: Public Water Wells from soil absorption systems, unlined et
beds


⩥ 150feet
Answer: Public Water Wells from Lined Evapotranspiration.


⩥ 50feet
Answer: Public Water Wells Sewer pipe with water tight joints.


⩥ 150feet
Answer: Public Water Wells from Surface Application (Edge of Spray
Area)


⩥ 150feet
Answer: Public Water Wells from Surface Application (Edge of Spray
Area)


⩥ 150feet
Answer: Public Water Wells from Drip Irrigation


⩥ 10 feet
Answer: Public Water Supply Lines from Tanks

, ⩥ 10 feet
Answer: Public Water Supply Lines from lined evapotranspiration beds


⩥ 10 feet
Answer: Public Water Supply Lines from sewer pipe with watertight
joints


⩥ 10 feet
Answer: Public Water Supply Lines from surface application (Edge of
spray area)


⩥ 10 feet
Answer: Public Water Supply Lines from drip irrigation


⩥ 50 feet
Answer: Wells and underground Cisterns from tanks


⩥ 100 feet
Answer: Wells and underground Cisterns from Soil absorption systems,
& unlined ET beds.


⩥ 50 feet