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Iowa Plumbing Practice 20

Practice 20 for Plumbing Exam learners in Iowa: 25 questions, explained answers, and a review routine.

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Question 1

1

A new high-rise must satisfy fixture counts, expansion control, backflow, and DWV venting all at once. A water heater bank serves a closed system behind a backflow assembly. Which provision is mandatory as a result of the closed system?

Question 2

2

A facility's medical gas and plumbing inspections overlap. For the potable water serving an aspirator or similar high-hazard medical device, the required protection is what?

Question 3

3

A gas branch sized at 60 feet is extended 50 feet to add a new appliance, raising the run to 110 feet and adding 60 MBH. The correct sizing action is what?

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