Deck 18: Plumbing Codes: Indirect Wastes

Question 1

To preserve bacteria in sanitary systems that rely on them for waste decontamination, what is the maximum temperature allowed for material being discharged from the system?

A)110 ° F
B)120 ° F
C)140 ° F
D)180 ° F

Answer 1

C

Question 2

Plumbing codes call a device that receives an air gap or air break discharge a/an:

A)receptor
B)air drain
C)condensate drain
D)trap

Answer 2

A

Question 3

How efficient does a furnace typically have to be to generate condensate?

A)80 percent
B)90 percent
C)50 percent
D)65 percent

Answer 3

B

Question 4

Indirect connects are required where:

A)food is prepared
B)food is stored
C)safety concerns exist
D)all of the above

Question 5

Condensate lines are required to have a slope of not less than how many inches per foot away from the equipment?

A)1/8"
B)1/4"
C)3/4"
D)1/16"

Question 6

What offers the highest level of protection in indirect piping?

A)air valves
B)air gap
C)pressure valves
D)air brake

Question 7

Where does the flexible drain line off of a domestic dishwashing machine typically drain into?

A)grease trap
B)kitchen sink or food waste disposer
C)receptor
D)hub drain

Question 8

The IPC limits the length of the standpipe in automatic clothes washers to how many inches above the trap weir?

A)25 to 30
B)18 to 42
C)10 to 20
D)40 to 50

Question 9

Which of the following would NOT be a component on a typical condensate pump?

A)small tank
B)pump
C)liquid level sensor
D)pressure valve

Question 10

A condensate pump receives condensate water from an air conditioning system and pumps it to a point outside the building.

Question 11

According to code, what is the minimum pipe size required to collect condensate from a condensing appliance?

A)3/4"
B)1/2"
C)1"
D)1 1/2"

Question 12

All plumbing codes agree on a 2-inch P-trap minimum for automatic clothes washers.

Question 13

When a receptor receives discharge other than clear water waste, it is required to have a:

A)valve
B)vent
C)joint
D)strainer

Question 14

To reduce splashing, codes require receptors to be how many pipe sizes larger than the line discharging into the receptor?

A)one-half pipe size
B)one pipe size
C)one-and-a-half pipe sizes
D)two pipe sizes

Question 15

The IPC defines indirect waste pipes as waste pipes that connect directly with a drainage system.