Plumbing Fixture Maintenance and Repair: Quizzes and Practice Tests

Question 1

Which material is NOT commonly used in manufacturing plumbing fixtures?

Accepted Answer

Wood

Answer

Porcelain

Answer

Ceramics

Answer

Glass

Question 2

Which type of fitting is designed to connect a drain pipe to a fixture?

Accepted Answer

Slip joint

Answer

Threaded fitting

Answer

Compression fitting

Answer

Soldered fitting

Question 3

Which of the following practices violates plumbing code?

Accepted Answer

Installing a gas water heater too close to combustible materials

Answer

Using copper tubing for water lines

Answer

Installing a drain pipe with too much slope

Answer

Applying a wax ring to seal a toilet base

Question 4

Which type of plumbing fixture is most commonly installed outdoors?

Accepted Answer

Faucet

Answer

Sink

Answer

Toilet

Answer

Showerhead

Question 5

Which of the following is NOT a plumbing fixture commonly found in a residential bathroom?

Accepted Answer

Electrical outlet

Answer

Sink

Answer

Toilet

Answer

Bathtub

Question 6

What is the primary function of a trap in a plumbing system?

Accepted Answer

To prevent sewer gases from entering the building

Answer

To collect and hold water beneath a fixture

Answer

To prevent backflow of water into the fixture

Answer

To regulate the flow of water through the fixture

Question 7

Which material is most commonly used for drainpipes in residential plumbing due to its durability and resistance to corrosion?

Accepted Answer

PVC

Answer

Copper

Answer

Cast iron

Answer

Galvanized steel

Question 8

Which tool is specifically designed to tighten and loosen fittings on plumbing fixtures?

Accepted Answer

Pipe wrench

Answer

Adjustable wrench

Answer

Allen wrench

Answer

Pliers

Question 9

What is the purpose of a vacuum breaker in a plumbing system, and where is it typically installed?

Accepted Answer

To prevent backflow of contaminated water into the water supply, typically installed on hose bibs

Answer

To regulate the flow of water through the fixture, typically installed on faucets

Answer

To provide a vent for sewer gases, typically installed on drains

Answer

To serve as an overflow drain, typically installed on sinks

Question 10

When selecting materials for drainpipes, which of the following is commonly used?

Accepted Answer

PVC

Answer

Copper

Answer

Brass

Answer

Galvanized steel

Question 11

What is the primary purpose of a trap in a plumbing system?

Accepted Answer

To prevent backflow of gases and liquids

Answer

To filter debris from wastewater

Answer

To store water for future use

Answer

To regulate water pressure in the system

Question 12

What is the primary function of a water hammer arrestor in a plumbing system?

Accepted Answer

Preventing water damage caused by pressure surges

Answer

Reducing noise generated by water flow

Answer

Improving the flow rate of water

Answer

Protecting against backflow of contaminated water

Question 13

What is the primary purpose of a p-trap in a sink drain system?

Accepted Answer

To prevent sewer gases from entering the building

Answer

To filter out debris from the drain

Answer

To collect standing water in the sink

Answer

To reduce the flow rate of water

Question 14

Which tool is primarily used to cut copper pipes?

Accepted Answer

Pipe cutter

Answer

Hacksaw

Answer

Reciprocating saw

Answer

Angle grinder

Question 15

What is the main purpose of the International Plumbing Code (IPC)?

Accepted Answer

To establish minimum standards for plumbing systems

Answer

To provide guidelines for plumbing design

Answer

To specify materials and methods for plumbing installations

Answer

To regulate plumbing practices across all states

Question 16

Which of the following is not considered a plumbing fixture?

Accepted Answer

Electrical outlet

Answer

Toilet

Answer

Sink

Answer

Bathtub

Question 17

What is the main purpose of a backflow preventer?

Accepted Answer

To prevent water from flowing back into the water supply

Answer

To regulate water pressure in the system

Answer

To filter out impurities from the water

Answer

To protect against water hammer

Question 18

What is the proper order of steps to solder copper pipes?

Accepted Answer

Apply flux to the pipe and fittings, heat them with a torch and apply solder

Answer

Apply solder to the pipe and fittings, heat them with a torch and apply flux

Answer

Heat the pipe and fittings with a torch, then apply flux and solder

Answer

Apply flux to the pipe and fittings, then heat them with a torch and wait for the solder to flow

Question 19

Which of the following is **NOT** a type of plumbing fixture?

Accepted Answer

Electrical outlet

Answer

Toilet

Answer

Faucet

Answer

Showerhead

Question 20

What is the primary purpose of a P-trap in a plumbing system?

Accepted Answer

To prevent sewer gases from entering the building

Answer

To adjust water temperature

Answer

To increase water flow

Answer

To collect hair and debris

Question 21

What is the proper sequence of steps for unclogging a drain using a plunger?

Accepted Answer

Seal the overflow hole, fill the sink with water, and plunge vigorously

Answer

Use a chemical drain cleaner

Answer

Pour boiling water down the drain

Question 22

Which type of wrench is primarily used to tighten and loosen nuts and bolts on plumbing fixtures?

Accepted Answer

Adjustable crescent wrench

Answer

Pipe wrench

Answer

Allen wrench

Answer

Socket wrench

Question 23

Which type of pipe is primarily used for drainage in plumbing systems due to its durability and resistance to corrosion?

Accepted Answer

PVC

Answer

ABS

Answer

Copper

Answer

PEX

Question 24

What is the main function of a water softener in a plumbing system?

Accepted Answer

To remove minerals from water

Answer

To purify water

Answer

To increase water pressure

Answer

To prevent leaks

Question 25

What is the correct sequence of steps for soldering a copper pipe to create a strong and leak-proof joint?

Accepted Answer

Clean the pipe, apply flux, heat the pipe, and apply solder

Answer

Apply solder, heat the pipe, and clean the pipe

Answer

Clean the pipe, heat the solder, and apply flux