Chapter 13

Question 1

The purpose of a trap in a sanitary sewer piping system is to
A. Stop hair and other solids from entering the sewer
B. Keep the soap scum from getting into the septic system
C. Allow condensate to escape while holding back steam
D. Stop sewer gases from escaping from the water system through the fixture

Answer 1

D

Question 2

When externally located, the trap should be within blank of the fixture.
A. 900 mm, [3 feet]
B. 500 mm, [1.7 feet]
C. 750 mm, [2.5 feet]
D. 400 mm, [1.3 feet]

Answer 2

A

Question 3

What is the purpose of cleanouts in drainage lines, and where are they typically located?

Answer 3

Cleanouts allow access for cleaning and inspection service. They are normally found at the base of plumbing stacks, above running traps, or in the floor under a cover plate.

Question 4

Grease drained from the kitchen fixture should be removed by passing the water through a
A. Heat exchanger
B. Filter
C. Grease trap
D. Closed bucket

Answer 4

C

Question 5

Materials often used for indoor sanitary drainage piping consist of which of the following?
A. Cast iron
B. Galvanized steel
C. Copper
D. All of the above

Answer 5

D