Question 3667 Deck General

The correct answer is C) 125 psi. According to the regulations, the relief valve on a fire pump must be set at 125 psi above the pressure necessary to maintain the required fire streams. This ensures that the fire pump does not generate excessive pressure that could damage the piping or other components of the fire system. The other answer choices are incorrect because 50 psi (A) and 75 psi (B) are too low, while 150 psi (D) is too high compared to the required 125 psi setting for the relief valve.