A 4.2 K-factor sprinkler must deliver 17 gpm (692 mm/min). What pressure is required?
A.
4.52 psi (0.31 bar)
B.
9.22 psi (0.63 bar)
C.
16.38 psi (1.13 bar)
D.
36.86 psi (2.54 bar)
The Answer Is:
B
This question includes an explanation.
Explanation:
To deliver 17 gpm with a 4.2 K-factor sprinkler, approximately 9.22 psi pressure is required. This is calculated using the sprinkler's K-factor formula, which relates flow rate, pressure, and the K-factor.
References: The K-factor formula is a fundamental concept in fire protection engineering for determining the relationship between flow rate and pressure in sprinkler systems.
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