FREE Master Plumber Water Supply Systems Questions and Answers

Question 1

A master plumber is designing a water supply system for a multi-story residential building.
To ensure adequate water pressure at the highest fixtures during peak demand, which of the following system components is most commonly utilized to boost pressure from the municipal supply?

Accepted Answer

Booster pump system

Answer

Pressure reducing valve (PRV)

Answer

Water hammer arrestor

Answer

Expansion tank

Question 2

Which of the following conditions in a water distribution system is primarily responsible for causing 'water hammer'?

Accepted Answer

Sudden closure of a valve or faucet

Answer

Excessive water temperature

Answer

Insufficient pipe diameter

Answer

Continuous low water pressure

Question 3

When installing a domestic hot water storage tank, what is the primary purpose of an 'expansion tank' in relation to the water supply system?

Accepted Answer

To absorb the expanded volume of heated water

Answer

To increase the hot water temperature

Answer

To reduce sediment buildup in the tank

Answer

To prevent backflow into the cold water supply

Question 4

A plumber is tasked with installing a new water service line from the municipal main to a single-family home. Which component is installed at the property line, typically underground, to allow for individual control and shut-off of the water supply to the property?

Accepted Answer

Curb stop

Answer

Pressure relief valve

Answer

Water meter

Answer

Corporation stop

Question 5

In a residential water distribution system, what is the primary function of a 'check valve'?

Accepted Answer

To prevent reverse flow of water

Answer

To regulate the water flow rate

Answer

To reduce water pressure

Answer

To filter impurities from the water

Question 6

What is the primary advantage of using a 'manifold' (or 'homerun') plumbing system for water distribution in a home, compared to a traditional branch and tee system?

Accepted Answer

More consistent water pressure at fixtures, especially when multiple are in use

Answer

Reduced initial material cost

Answer

Fewer required backflow preventers

Answer

Easier detection of leaks in the main supply line

A master plumber is designing a water supply system for a multi-story residential building.To ensure adequate water pressure at the highest fixtures during peak demand, which of the following system components is most commonly utilized to boost pressure from the municipal supply?

A master plumber is designing a water supply system for a multi-story residential building.
To ensure adequate water pressure at the highest fixtures during peak demand, which of the following system components is most commonly utilized to boost pressure from the municipal supply?