Indirect Waste

Question 1

Fill in the blank:

Except for refrigerator coils and ice-making machines, the size of the indirect waste pipe in a food handling establishment shall be not smaller than ______.

Answer 1

1 inch

Question 2

Fill in the blank:

The indirect waste pipe for ice making machines shall be not less than______.

Answer 2

3/4 inch

Question 3

True or False:

For walk-in coolers, floor drains shall be permitted to be connected to a separate drainage line discharging into an outside receptor.

Answer 3

True

Question 4

Fill in the blank:

The developed length for an indirect waste pipe for a bar or fountain sink shall not exceed ______.

Answer 4

Five feet

Question 5

What is the maximum length for an indirect waste line from a sterilizer to the waste receptor?

Answer 5

fifteen feet

Question 6

True or False:

The indirect waste receptor for a sterilizer is not required to be located in the same room as the sterilizer.

Answer 6

False

Question 7

True or False:

The trap for indirect waste pipes exceeding 5 feet, but less than 15 feet in length shall not be required to be vented.

Answer 7

True

Question 8

Fill in the blank:

The standpipe for a clothes washer shall not extend less than ______ inches above the trap weir.

Answer 8

18

Question 9

Fill in the blank:

Appliances such as stills and sterilizers shall be drained through a(n) ______.

Answer 9

air gap

Question 10

True or False:

A drinking fountain shall not be permitted to be installed with indirect wastes.

Answer 10

False

Question 11

Fill in the blank:

Steam or hot water sumps, condensers or intercepting tanks that are constructed of concrete shall have walls and a bottom that are not less than ______ inches in thickness.

Answer 11

4

Question 12

Fill in the blank:

Sumps and condensers for steam and hot water drainage shall contain a volume ______ the volume of water removed from the boiler.

Answer 12

Not less than twice

Question 13

Fill in the blank:

Chemical or liquid industrial wastes that could damage the sanitary sewer system shall be ______ before discharge into the drainage system.

Answer 13

pretreated

Question 14

True or False:

Clear water wastes from water lifts or expansion tanks are required to discharge through an indirect waste.

Answer 14

True

Question 15

What is the minimum slope for an indirect condensate drainpipe serving an air-cooling coil or condensing appliance?

Answer 15

1%

Question 16

What is the minimum drain line size for indirect waste condensate overflow?

Answer 16

3⁄4”

Question 17

What is the minimum indirect waste pipe size for a drain receiving condensate from equipment having a capacity of 20 tons of refrigeration?

Answer 17

3⁄4“

Question 18

True or False:

Air-conditioning condensate waste pipes are allowed to connect indirectly through an air break.

Answer 18

True

Question 19

True or False:

Condensate waste from air-conditioning coils are permitted to discharge by direct connection into a lavatory tailpiece.

Answer 19

True

Question 20

True or False:

When installing indirect waste piping, female plastic screwed fittings shall be used with male metal fittings and metal threads.

Answer 20

False

Question 21

True or False:

Plumbing fixtures or receptors that receive indirect waste are required to be readily accessible.

Answer 21

True

Question 22

True or False:

The trap for a clothes washer is permitted to be installed below the floor.

Answer 22

False

Question 23

True or False:

Copper or copper alloy tubes shall be permitted for use for chemical indirect waste disposal.

Answer 23

False

Question 24

True or False:

Condensate wastewater shall be permitted to drain over a public way.

Answer 24

False

Question 25

What is the minimum indirect waste pipe size for a drain receiving condensate from equipment having a capacity of 100 tons of refrigeration?

Answer 25

1 1/2"