Free Master Plumber MCQ Questions And Answers

Question 1

How much grade is typically needed for each liner foot of a domestic drainage pipe?

Accepted Answer

1/4 inch

Answer

The size of the drain pipe determines the grade, also known as pitch or fall, for the drain pipe. These plumbing system components are created by master plumbers and other design experts based on the minimal requirements set out by local codes. As a general rule,.25 inch per liner foot of slope is required for a drain with a diameter up to 4 inches.

Question 2

What happens if the size of a 4 inch pipe is decreased in the flow's direction?

Accepted Answer

This could cause blockage to build up at the reduction point.

Answer

Due to the flow direction at the reduction point, waste might accumulate and clog the ping system.

Question 3

Vacuum pump exhaust must be discharged into the following areas in Med Gas systems:

Accepted Answer

Outdoors

Answer

Exhaust must be sent outside in a manner that reduces the risk of noise and environmental contamination.

Question 4

In the course of brazing, flux can only be applied when

Accepted Answer

Brazing copper to brass

Answer

Only different metals can be brazed together with flux.

Question 5

Gray water must be _____ when it enters a collection reservoir.

Accepted Answer

Filtered

Answer

Gray water must first be filtered before entering a gray water collection reservoir. This is necessary to prevent particles from getting into the collection reservoir. There is a chance that some sort of material could end up in the drainage water, even though the fixtures that permit the recycling of gray water shouldn't be conveying solids. These pollutants are prevented from entering the collection of recycled gray water by the filters.

Master Plumber Exam Practice Test

Master Plumber Exam Practice Test

Free Master Plumber MCQ Questions And Answers