Red Seal Plumbing Practice Exam

What consists of two spring-loaded flaps seated into a housing?

1. Non slam valve

2. Butterfly valve

3. Ball valve

4. Check valve

The correct answer is: Non slam valve

A non-slam valve is the correct answer because it specifically describes a valve that consists of two spring-loaded flaps seated into a housing. Butterfly valve, ball valve, and check valve are all types of valves, but they do not necessarily have two spring-loaded flaps seated into a housing. A butterfly valve has a disc instead of flaps, a ball valve has a rotating ball instead of flaps, and a check valve typically only has one flap or disc. Therefore, they are not the best or most accurate option for this question.