Deck 16: Plumbing Codes: Water Supply and Distribution

Question 1

What type of control valves are typically located where codes begin their jurisdiction, at the private property line?

A)building service valves
B)curb valves
C)dwelling unit isolation valve
D)riser valves

Answer 1

B

Question 2

What water piping material typically features connections made by brazed joints, flared joints, mechanical joints, soldered joints, or threaded joints?

A)PVC
B)polyethylene plastic pipe
C)copper
D)stainless steel

Answer 2

C

Question 3

All water distribution pipe sizing methods account for the supply pressure in the system's design.

Answer 3

True

Question 4

Which type of control valve is located at the termination of the water service inside a structure?

A)curb valves
B)riser valves
C)dwelling unit isolation valve
D)building service valves

Question 5

Which of the following is typically not removed by residential water softeners?

A)odors
B)calcium
C)iron
D)hydrogen sulfide

Question 6

The first step in protecting a potable water supply is making sure it is easily recognizable.

Question 7

The vacuum relief valve on a pressure tank must be rated at a maximum pressure of what psi, and what maximum temperature?

A)200 psi, 200 ° F
B)250 psi, 210 ° F
C)180 psi, 180 ° F
D)220 psi, 150 ° F

Question 8

To minimize the amount of water wasted while waiting for hot water to arrive to a fixture, what distance limit have codes set form the water heater to the furthest fixture?

A)200 feet
B)100 feet
C)150 feet
D)75 feet

Question 9

Solvent cement joints would typically be seen in piping made of which of the following materials?

A)plastic piping
B)stainless steel
C)galvanized steel
D)copper

Question 10

The International Plumbing Code defines hot water as being 110 ° or more.

Question 11

What type of control vale is used when water lines pass through more than one floor?

A)shutoff valves
B)curb valves
C)dwelling unit isolation valve
D)riser valves

Question 12

The Uniform Plumbing Code defines hot water as:

A)110 ° F or higher
B)115 ° F or higher
C)120 ° F or higher
D)105 ° F or higher

Question 13

Who is responsible for performing water supply system tests, and providing all necessary equipment for the test?

A)code inspectors
B)permit holder and/or technician
C)standards inspectors
D)equipment manufacturers

Question 14

Which setting would be most likely to feature two separate water service systems?

A)school
B)hospital
C)shopping mall
D)restaurant

Question 15

What type of drinking water treatment unit removes solids through the use of pressure to force water through a filter membrane?

A)sterilizer
B)reverse osmosis
C)disinfecting water mains
D)iron removal treatment package