NCARB Question BS

Mechanical & Electrical Plan Vignette and Multiple Choice

NCARB Question BS

Postby Cosninety » Thu Mar 30, 2017 6:05 pm

Can someone explain why the answer to number 13 in the NCARB practice questions is a gate valve? Why wouldn't it be a check valve?
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Re: NCARB Question BS

Postby brownc13 » Sat Apr 01, 2017 9:05 am

A check valve would be used at position 1. A Check valve is used where the service comes into the building to prevent backflow. A gate valve would be used at position 3 in order to shut off the water to service the pump is it should break. Hope this helps
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