Backflow Prevention Assembly Questions
Lesson 1 With Correct Answers 2025/26.
In responding to a backflow incident the water purveyor should
(A) Call the mayor
(B) Implement the emergency response plan
(C) Install a vacuum breaker
(D) Develop a good excuse
Implement the emergency response plan
A mixture of air and gas is considered hazardous when the mixture exceeds
what percentage of gthe lower explosive limit
(A) 0%
(B) 3%
(C) 7%
(D) 10%
10%
To exert a pressure of 1.0 psi at base of a water column the column would
have to be
(A) 4.34 high
(B) 14.7 high
(C) 27.75 high
(D) 33.89 high
27.75 high
Lesson 1 With Correct Answers 2025/26.
In responding to a backflow incident the water purveyor should
(A) Call the mayor
(B) Implement the emergency response plan
(C) Install a vacuum breaker
(D) Develop a good excuse
Implement the emergency response plan
A mixture of air and gas is considered hazardous when the mixture exceeds
what percentage of gthe lower explosive limit
(A) 0%
(B) 3%
(C) 7%
(D) 10%
10%
To exert a pressure of 1.0 psi at base of a water column the column would
have to be
(A) 4.34 high
(B) 14.7 high
(C) 27.75 high
(D) 33.89 high
27.75 high
