Water Sources and Distribution: Master the Basics of Plumbing

Question 1

Which type of water source is characterized by water that has percolated through layers of soil and rock?

Accepted Answer

Groundwater

Answer

Surface water

Answer

Rainwater

Answer

Reclaimed water

Question 2

What is the main purpose of a water distribution network?

Accepted Answer

To transport water from its source to consumers

Answer

To collect and store water

Answer

To treat water and make it safe for consumption

Answer

To dispose of wastewater

Question 3

What is the function of a backflow preventer in a plumbing system?

Accepted Answer

To prevent water from flowing in the wrong direction

Answer

To control water flow

Answer

To reduce water pressure

Answer

To filter impurities from water

Question 4

Which type of joint is used to connect copper pipes in residential plumbing systems?

Accepted Answer

Soldered joint

Answer

Compression joint

Answer

Flared joint

Answer

Push-fit joint

Question 5

Which type of faucet is recommended for outdoor use due to its durability and resistance to freezing?

Accepted Answer

Compression faucet

Answer

Ball faucet

Answer

Disk faucet

Answer

Sensor faucet

Question 6

What is the primary purpose of a water hammer arrestor?

Accepted Answer

To absorb pressure surges and prevent water hammer

Answer

To prevent water leaks

Answer

To reduce water pressure

Answer

To silence water noises

Question 7

Which of the following is NOT a common source of water for municipal water systems?

Accepted Answer

Rainwater harvesting

Answer

Surface water (e.g., rivers, lakes)

Answer

Groundwater (e.g., aquifers)

Answer

Desalinated seawater

Question 8

What is the primary purpose of water treatment plants?

Accepted Answer

To remove contaminants and make water safe for consumption

Answer

To increase the water pressure in distribution systems

Answer

To store large quantities of water for emergencies

Answer

To monitor water quality and ensure compliance with regulations and standards

Question 9

Which type of pipe material is known for its flexibility and resistance to corrosion?

Accepted Answer

PVC

Answer

Copper

Answer

Galvanized steel

Answer

Cast iron

Question 10

What is the primary function of a water tower in a water distribution system?

Accepted Answer

To provide a constant water pressure in the system

Answer

To store water for emergencies

Answer

To remove contaminants from the water

Answer

To regulate the flow of water into the system and balance supply and demand

Question 11

What are the main components of a residential water heater?

Accepted Answer

Tank, heating element, thermostat

Answer

Heat exchanger, combustion chamber, flue

Answer

Condenser, evaporator, compressor

Answer

Pump, filter, valve

Question 12

Which of the following is NOT a type of water source used for human consumption?

Accepted Answer

Lava (molten rock)

Answer

Surface water (e.g., rivers, lakes)

Answer

Groundwater (e.g., aquifers)

Answer

Desalinated water (e.g., from seawater)

Question 13

What is the primary goal of water treatment?

Accepted Answer

To remove impurities and contaminants, making water safe for drinking and other uses

Answer

To soften water and enhance its taste

Answer

To increase the mineral content of water

Answer

To reduce the pH level of water

Question 14

Which type of pipe material is commonly used for water distribution lines in residential buildings?

Accepted Answer

Polyvinyl chloride (PVC)

Answer

Copper

Answer

Galvanized steel

Answer

Concrete

Question 15

What is the main purpose of a water meter?

Accepted Answer

To measure the volume of water consumed

Answer

To regulate water pressure in the system

Answer

To prevent water leaks and damage

Answer

To filter out impurities in water

Question 16

What is the primary function of a backflow preventer in a plumbing system?

Accepted Answer

To prevent contaminated water from flowing back into the clean water supply

Answer

To reduce water pressure and prevent pipe damage

Answer

To filter out sediment and impurities from water

Answer

To regulate the flow of water between different zones

Question 17

What is the desirable pH range for drinking water to maintain its quality and safety?

Accepted Answer

6.5 - 7.5

Answer

5.0 - 6.0

Answer

8.0 - 9.0

Answer

9.5 - 10.5

Question 18

Which of the following is NOT a commonly known waterborne disease?

Accepted Answer

Influenza

Answer

Cholera

Answer

Typhoid fever

Answer

Legionnaires' disease

Question 19

Which of the following is NOT a primary source of water for human use?

Accepted Answer

Oil

Answer

Groundwater

Answer

Surface water

Answer

Desalinated water

Question 20

In municipal water distribution systems, which pipe material is frequently employed?

Accepted Answer

Ductile iron

Answer

Stainless steel

Answer

PVC

Answer

Copper

Question 21

What is the function of a pressure-reducing valve in a water distribution system?

Accepted Answer

To maintain appropriate pressure levels for plumbing fixtures and appliances

Answer

To eliminate water hammer

Answer

To control flow rate

Question 22

In residential and commercial buildings, which type of water meter is commonly used to measure water consumption?

Accepted Answer

Positive displacement meter

Answer

Turbine meter

Answer

Ultrasonic meter

Answer

Electromagnetic meter

Question 23

When designing a water distribution system, what is the key factor determining the size of a water distribution pipe?

Accepted Answer

Water demand

Answer

Pressure drop

Answer

Pipe material

Answer

Pipe length

Question 24

In a water distribution system, which type of valve is employed to isolate a section for maintenance or repairs?

Accepted Answer

Gate valve

Answer

Check valve

Answer

Needle valve

Answer

Ball valve

Question 25

What is the purpose of a water tower in a water distribution system?

Accepted Answer

To store water and maintain pressure

Answer

To filter water

Answer

To prevent backflow

Answer

To measure water flow

Question 26

In a water distribution system, which issue is commonly associated with lead pipes?

Accepted Answer

Potential lead contamination of drinking water

Answer

Accelerated corrosion

Answer

Increased water pressure

Answer

Reduced water flow