To convert feet of head to pressure in psi, multiply by which factor?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the CR-21 Landscapes and Irrigation Test. Utilize flashcards and multiple-choice questions featuring hints and explanations. Get exam-ready!

Multiple Choice

To convert feet of head to pressure in psi, multiply by which factor?

Explanation:
The amount of pressure from a column of water grows with the height of the column. In US units, the weight density of water is about 62.4 pounds-force per cubic foot. Pressure in pounds per square foot is this weight density times the height: P(psf) = 62.4 h. To get psi, convert from psf to psi by dividing by 144 (since 1 ft^2 = 144 in^2). So P(psi) = (62.4 h) / 144 ≈ 0.433 h. That means each foot of head adds about 0.433 psi. The other numbers don’t fit: 2.31 is the reciprocal in this context, 1.0 ignores the conversion, and 3.14 has no relevance here.

The amount of pressure from a column of water grows with the height of the column. In US units, the weight density of water is about 62.4 pounds-force per cubic foot. Pressure in pounds per square foot is this weight density times the height: P(psf) = 62.4 h. To get psi, convert from psf to psi by dividing by 144 (since 1 ft^2 = 144 in^2). So P(psi) = (62.4 h) / 144 ≈ 0.433 h. That means each foot of head adds about 0.433 psi. The other numbers don’t fit: 2.31 is the reciprocal in this context, 1.0 ignores the conversion, and 3.14 has no relevance here.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy