Free Plumbing Questions And Answers

Question 1

The minimum vertical distance of an indirect drain line from the flood rim of its receptor is _______________.

Accepted Answer

1"

Answer

½"

Answer

¾"

Answer

2"

Question 2

Which of the following fixture types can be served by a waste and vent combo system?

Accepted Answer

Sinks

Answer

Toilets

Answer

Bidets

Answer

Urinals

Question 3

You are attaching two lavatories that are next to each other, two urinals, and two toilets to one horizontal branch. How many fixtures can be connected to a horizontal branch at once?

Accepted Answer

8

Answer

6

Answer

4

Answer

3

Question 4

Cleanouts must be installed in order to pipe for horizontal drainage branches and building drains. The diameter of the drain and other elements define how far apart these cleanouts should be placed. The drain pipe diameter in this instance is three inches. This drain has a 40-foot running length. The pipe makes one 90-degree turn and one 45-degree turn along this journey. How many cleanouts will this installation require?

Accepted Answer

2

Answer

4

Answer

6

Answer

3

Question 5

How many P-traps can a single trap arm support in total?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 6

It is necessary for flexible water connections to be _____.

Accepted Answer

Accessible

Answer

Limited to first-floor installations

Answer

Supported

Answer

Readily accessible

Question 7

To prevent backflow, sill cocks, hose bibs, and water heaters are typically equipped with ___.

Accepted Answer

A vacuum breaker

Answer

An air break

Answer

A reduced-pressure backflow preventer

Answer

An air gap