Question

When the discharge pipe of a safety valve extends through the roof it must extend above roof by ___ feet:

a) 3
b) 5
c) 6
d) 7

Answer 1

c) 6. The discharge pipe of a safety valve must extend above the roof by 6 feet.

Step-by-step explanation:

In engineering, when the discharge pipe of a safety valve extends through the roof, it must extend above the roof by 6 feet (option c). This requirement is necessary to ensure that any discharged steam, gas, or liquid is safely vented away from the building and does not cause any hazards or damage.

By extending the discharge pipe above the roof, the expelled materials are directed upwards and away from people, structures, and other equipment. This prevents any potential harm or damage that could occur if the discharge were to occur at a lower level.