High School

If the pressure at the water main is 60 psi, what is the static pressure on a plumbing faucet 40 ft above the main?

A. 20 psi
B. 40 psi
C. 42.7 psi
D. 62.7 psi

Answer :

Final answer:

The static pressure on the plumbing faucet 40 ft. above the main is approximately 77.32 psi.

None of the option is correct.

Explanation:

To find the static pressure on a plumbing faucet 40 ft. above the water main with a pressure of 60 psi:

1. Convert the height to pressure using the equation: 1 psi per 2.31 ft of height.

2. Calculate the pressure due to the height difference: 40 ft / 2.31 ft = 17.32 psi

3. Add the pressure due to height to the pressure at the main: 17.32 psi + 60 psi = 77.32 psi

Therefore, the static pressure on the plumbing faucet 40 ft. above the main is approximately 77.32 psi.

None of the option is correct.