The backflow preventer or clapper valve:
A. prevents water from entering the system
B. prevents water from reentering the public water supply
C. prevents water from entering noninvolved areas
D. protects the system from water surges
Answer: B. prevents water from reentering the public water supply
You might also like to view...
A ____ allows a portion of the clutch to slip under high stress situations like rapid down shifting.
A. sprag B. sheeve C. centrifuge D. back limiter
The profitability of pigs is determined by which of the following factors?
a. growth ability c. feed conversion b. reproductive efficiency d. all answers
What will happen to sod that is not laid immediately but instead is left in a pile?
What will be an ideal response?
When calibrating granular applicators, why should you use at least 5,000 sq. ft. for a rotary spreader and only 1,000 sq. ft. for a drop spreader?
What will be an ideal response?