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TEXAS IRRIGATION LICENSE EXAM LATEST REAL EXAM 100 QUESTIONS AND CORRECT ANSWERS|AGRADE
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TEXAS IRRIGATION LICENSE EXAM LATEST REAL EXAM 100 QUESTIONS AND CORRECT ANSWERS|AGRADE
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TEXAS IRRIGATION LICENSE EXAM LATEST2023-2024 REAL EXAM 100 QUESTIONS AND
CORRECT ANSWERS|AGRADE
How many feet of head does it take to equal 1 PSI? - ANSWER- 2.31
To gain .433 PSI, your piping would have .... ? - ANSWER- Elevation loss of 1 ft.
A loss in PSI is a result of ? - ANSWER- An elevation gain in the piping
Water pressure is measured in ? - ANSWER- PSI
PSI stand for ? - ANSWER- Pound per square inch
If water travels downhill , what happens to the PSI? - ANSWER- An increase
Water will seek it's own lowest level by what force of nature? - ANSWER- gravity
What is the weight of one cubic foot of water? - ANSWER- 62.4 Ibs
What is the weight of one gallon of water ? - ANSWER- 8.3 pounds
1 Acre is equal to - ANSWER- 43,560 square ft.
1 Cubic ft. of water contains .... - ANSWER- 7.4805 gallons
1 ft of head equals - ANSWER- .433 PSI
1 PSI equals - ANSWER- 2.31 ft of head
1 section of land equals ... - ANSWER- 640 acres
1 Acre ft equals - ANSWER- 43,560 cubic ft.
, What is the undesirable reversal of the flow of water or mixtures of water and other
undesirable substances from any source? - ANSWER- Backflow
Occurs when the user system is at a higher pressure than the supply water systems
allowing undesirable substances to be pushed back - ANSWER- backpressure
Occurs when negative or reduced pressure exists in the supply piping - ANSWER-
backsiphonage
What is the most common form of a cross connection? - ANSWER- Garden hose
because it can connect the the portable water supply
What is potentially dangerous about an unprotected still cock? - ANSWER- A hose
can be used for watering purposes, but it left in pools, elevated shrubs , or ground
where there are chemicals it can be dangerous.
What can be used to protect a still cock? - ANSWER- A hose bibb vacum beaker
Will an anti-siphon vacuum beaker protect against a backpressure backflow
condition ? - ANSWER- No, contaminated water will pass through the orifice into
water supply line if the downstream pressure increases over the supply pressure.
Can an atmospheric vacuum beaker be used on lawn sprinkler systems? -
ANSWER- Yes, they will protect the portable water supply if it's installed 6"
above the highest sprinkler head and shall have no control vales located
downstream.
What is the pressure that us supplied continuously to a backflow preventer for
periods of over 12 hours at a time? - ANSWER- Continuous pressure
Contamination from a sucken hose bibb pitt that caused backflow into the field
house drinking bubbler. - ANSWER- Holy Cross Football team
Five Cross Contamination Connections - ANSWER- 1. Air gap
2.Atmospheric Vacuum beakers
3. Pressure vacuum beakers
4.Double check valve assembly
5.Reduced Pressure Zone backflow preventers
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