Types of Water Supply Systems: A Comprehensive Guide for Plumbing Professionals

Question 1

When calculating water demand for a residential building, which of the following factors is NOT typically considered?

Accepted Answer

Water pressure in the supply system

Answer

Number of occupants

Answer

Type of fixtures and appliances

Answer

Building size and design

Question 2

Which type of pipe material is known for its flexibility and ease of installation, making it commonly used in plumbing systems?

Accepted Answer

PEX

Answer

Copper

Answer

PVC

Answer

Cast iron

Question 3

In water supply systems, what is the primary objective of a backflow preventer?

Accepted Answer

Preventing contaminated water from re-entering the source

Answer

Regulating water flow

Answer

Protecting against water hammer

Answer

Improving water quality

Question 4

Which type of water supply system relies on the collection and storage of rainwater?

Accepted Answer

Rainwater harvesting system

Answer

Municipal water system

Answer

Private well system

Answer

Cistern system

Question 5

Which component of a private well system is responsible for pumping water from the aquifer?

Accepted Answer

Water pump

Answer

Well casing

Answer

Pressure tank

Answer

Distribution lines

Question 6

What is the primary function of a pressure tank in a private well system?

Accepted Answer

To store water and maintain constant water pressure

Answer

To pump water from the ground

Answer

To filter and purify water

Answer

To regulate water flow into the distribution lines

Question 7

Which of the following is NOT a component of a municipal water system?

Accepted Answer

Rainwater collection tank

Answer

Water treatment plant

Answer

Distribution lines

Answer

Storage reservoirs

Question 8

Which type of water supply system is most appropriate for a high-density urban area with a large population?

Accepted Answer

Municipal water system

Answer

Private well system

Answer

Rainwater harvesting system

Answer

Borehole system

Question 9

Which type of rainwater harvesting system collects and stores rainwater in an underground tank?

Accepted Answer

Ground storage system

Answer

Rooftop system

Answer

Overflow system

Answer

Dual-purpose system

Question 10

What is the main purpose of a pressure-reducing valve in a water supply system?

Accepted Answer

Regulate water flow to prevent damage to fixtures and appliances

Answer

Protect against water contamination

Answer

Filter impurities from the water

Answer

Control the temperature of the water

Question 11

Which of the following is a biodegradable material commonly used in water supply pipes?

Accepted Answer

PEX

Answer

PVC

Answer

Copper

Answer

Galvanized steel

Question 12

What is the function of a water softener in a water supply system?

Accepted Answer

Remove hardness minerals from the water

Answer

Prevent corrosion in pipes

Answer

Improve water taste

Answer

Filter bacteria from the water

Question 13

What is the primary purpose of a backflow preventer in a water supply system?

Accepted Answer

Prevent contaminated water from flowing back into the main water supply

Answer

Reduce water pressure

Answer

Control water flow direction

Answer

Filter impurities from the water

Question 14

What is a potential drawback of using rainwater harvesting systems?

Accepted Answer

Higher maintenance costs

Answer

Lower water bills

Answer

Reduced environmental impact

Answer

Enhanced water security

Question 15

Which of the following is NOT a component of a municipal water supply system?

Accepted Answer

Septic tank

Answer

Distribution pipes

Answer

Water treatment plant

Answer

Water reservoir

Question 16

What is the primary purpose of a pressure tank in a private well system?

Accepted Answer

Maintain constant water pressure in the system

Answer

Filter impurities from the water (not its primary purpose)

Answer

Pump water from the well (done by the well pump)

Answer

Store excess water for later use

Question 17

What is the primary concern when designing a rainwater harvesting system?

Accepted Answer

Collecting and storing sufficient water to meet demand

Answer

Treating the water for contaminants (important, but secondary)

Answer

Preventing mosquito breeding (a consideration, but not the primary one)

Answer

Meeting building codes and regulations (important, but not the primary design concern)

Question 18

What is the primary function of a water meter in a municipal water supply system?

Accepted Answer

Measure water consumption for billing purposes

Answer

Filter impurities from the water (not its primary function)

Answer

Pump water to higher elevations (done by pumps, not meters)

Answer

Control water pressure (done by pressure-reducing valves, not meters)

Question 19

Which of the following factors should be considered when selecting a water supply system for a building?

Accepted Answer

Water demand, required water quality, and available resources

Answer

Ease of installation only (important, but not the only factor)

Answer

Cost of materials only (important, but not the only factor)

Question 20

What is the purpose of a backflow preventer in a water supply system?

Accepted Answer

Prevent contaminated water from flowing back into the main water supply

Answer

Filter sediment from the water (not its primary purpose)

Answer

Increase water pressure (not its function)

Question 21

Which of the following types of water supply systems is owned and operated by a local government or utility company?

Accepted Answer

Municipal water system

Answer

Rainwater harvesting system

Answer

Private well

Answer

Spring-fed system

Question 22

What is the primary advantage of a private well water supply system?

Accepted Answer

Independence from municipal water sources

Answer

Greater system reliability

Answer

Lower water costs

Answer

Higher water quality

Question 23

Which of the following is a key component of a rainwater harvesting system?

Accepted Answer

Cistern or storage tank

Answer

Distribution pipes

Answer

Water treatment plant

Answer

Pressure tank

Question 24

Which of the following is a potential disadvantage of a municipal water supply system?

Accepted Answer

Limited water availability during emergencies

Answer

Greater system reliability

Answer

Higher water quality

Answer

Lower cost

Question 25

What is the primary function of a pressure tank in a water supply system?

Accepted Answer

Store water under pressure and maintain a constant supply

Answer

Pump water from the source

Answer

Filter impurities from water

Answer

Distribute water to fixtures

Question 26

What is the most important factor to consider when selecting the type of water supply system for a particular location?

Accepted Answer

Availability of water resources and local conditions

Answer

Environmental impact

Answer

Cost of installation and maintenance

Answer

Personal preference

Question 27

What is the primary purpose of a water treatment plant in a municipal water supply system?

Accepted Answer

Remove impurities and contaminants, ensuring the safety of drinking water

Answer

Store water for distribution

Answer

Pump water from the source

Answer

Regulate water pressure