Chapter 112 Flashcards
0
Q
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 soap scum from getting into the sewer system
C) allow condensate to escape while holding back steam
D) stop sewer gases from escaping from the waste system through the fixture
A
D) stop sewer gases from escaping from the waste system through the fixture
1
Q
Horizontal branch lines must have adequate slope to maintain a minimum flow velocity of: A) 0.25 m/s B) 0.6 m/s C) 1 m/s D) 0.8 m/s
A
B) 0.6 m/s
2
Q
When externally located, the trap should be within \_\_\_\_ mm of the fixture. A) 610 mm B) 500 mm C) 750 mm D) 400 mm
A
A) 610 mm
3
Q
Grease that drains from kitchen fixtures should be removed by passing the water through a: A) heat exchanger B) filter C) grease trap D) closed bucket
A
C) grease trap
4
Q
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
A
D) all of the above
5
Q
Toilet tank flushometers deliver \_\_\_\_ of water ever 10 seconds. A) 13.7 L B) 15 L C) 7.5 L D) 10 L
A
A) 13.7 L
