IPC Plumbing Code Practice Test

Our IPC Plumbing Code Practice Practice test will help you improve your performance on test day.

There 15 questions created and managed by professionals from the field that cover topics such as water heaters, general regulations, administration and definitions, vents, special piping, gray water recycling systems, etc.

Each question contains an explanation that will support your process of learning and revision.

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Question 1

Please mark the valve which should be provided in the cold water supply line above the top of the heater or tank to prevent siphoning of the heater or tank:

A	Pressure relief valve
B	Vacuum relief valve
C	Temperature control valve
D	Flow control valve

Question 1 Explanation:

The vacuum relief valve should be provided in cold water supply line above the top of the heater or tank to prevent siphoning of heater or tank.

Question 2

What is the level of the point ton in which a dry vent should be lifted above the flood level rim of the highest trap or trapped fixture being vented?

A	3 inches
B	8 inches
C	6 inches
D	4 inches

Question 2 Explanation:

Every dry vent shall be rise vertically to a point not less than 6 inches above the flood level rim of the highest trap or trapped fixture being vented.

Question 3

What is the allowed size combination waste and vent pipe when 12 dfu fixture units are connected to a horizontal branch?

A	3 inches
B	6 inches
C	5 inches
D	4 inches

Question 3 Explanation:

The allowed size combination waste and vent pipe when 12 dfu fixture units are connected to a horizontal branch is 3 inches.

Question 4

How many inches should the building sewers have for manholes to be provided?

A	10 inches or more
B	6 inches or more
C	12 inches or more
D	8 inches or more

Question 4 Explanation:

Manholes should be provided for building sewers of 8 inches or more.

Question 5

Please mark where the mechanical joints that shouldn't be installed in unless approved:

A	In storm waste systems
B	In underground systems
C	In sewage systems
D	In above-ground systems

Question 5 Explanation:

The mechanical joints shouldn't be installed in above-ground systems unless approved.

Question 6

How does indirect waste piping discharge into a waste receptor?

A	Through a strainer
B	Through an air gap
C	Through a check valve
D	Through a cleaner

Question 6 Explanation:

Indirect waste piping discharges into a waste receptor through an air gap.

Question 7

Please mark the term that describes the portion of the drainage system that doesn't drain by gravity into the building sewer:

A	Building primary drain
B	Building sub-drain
C	Building main drain
D	Building secondary drain

Question 7 Explanation:

Building sub-drain is the term for the portion of the drainage system that does not drain by gravity into the building sewer.

Question 8

Please mark the number of washing machine plumbing connections required for 40 dwelling units in a flat:

A	2
B	1
C	40
D	20

Question 8 Explanation:

The number of washing machine plumbing connections required for 40 dwelling units in a flat is 2.

Question 9

Please mark one of the following that is used as a supplementary to the individual water supply system in order to maintain the minimum pressure in the system:

A	Elevated tank
B	A hydropneumatic pressure booster system
C	Pressure booster pump
D	Pressure booster pump
E	All of the above

Question 9 Explanation:

Elevated tank, hydropneumatic pressure and booster system are used as a supplementary to the individual water supply system in order to maintain the minimum pressure in the system.

Question 10

please mark the maximum allowed distance from the fixture to the trap weir:

A	18 inches
B	6 inches
C	24 inches
D	24 inches

Question 10 Explanation:

24 inches is the maximum vertical distance allowed from fixture to the trap weir.

Question 11

What is the minimum working pressure that the installed water servicing pipes must withstand?

A	180 psi
B	100 psi
C	160 psi
D	120 psi

Question 11 Explanation:

160 psi is the working pressure that the installed water servicing pipes must withstand.

Question 12

Please mark the kpa that is equal to one pound per square inch ( psi):

A	5.895 kpa
B	9.289 kpa
C	6.895 kpa
D	7.238 kpa

Question 12 Explanation:

6.895 kpa is equal to one pound per square inch (psi).

Question 13

Shall the size of the storm drainage pipe be increased in the direction of water flow?

A	Yes
B	No

Question 13 Explanation:

The size of the storm drainage pipe shall be reduced in the direction of water flow.

Question 14

Please mark any of the following that may enter in meter boxes through water service pipes:

A	Rodents
B	Cats
C	Small birds
D	All of the above

Question 14 Explanation:

Rodents may enter in meter boxes through water service pipes.

Question 15

What is the temperature range of tempered water?

A	32oC to 54oC
B	26oC to 48oC
C	29oC to 43oC
D	39oC to 67oC

Question 15 Explanation:

29oC to 43oC is the temperature range of tempered water.

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There are 15 questions to complete.

IPC Plumbing Code Practice Test

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