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The water service may be installed in the same trench with the building sewer providing
the bottom of the water service is at least ___________
above the top of sewer.
a. 6 inches
b. 12 inches
c. 21 inches
d. No minimum and/or no other special treatment is needed. - correct answerb. 12
inches
The minimum diameter of an individual sanitary vent shall be at least _________ the
diameter of the drain served.
a. the same as
b. half of
c. a third of
d. three quarters of - correct answerb. half of
What is the standard number for the mixing valve that is required for a shampoo sink?
a. ASSE 1010
b. ASSE 1015
c. ASSE 1044
d. ASSE 1070 - correct answerd. ASSE 1070
For any horizontal to horizontal change of direction in a run of 4" sanitary drainage
piping, which of the following fittings is prohibited for that purpose?
a. eighth bend
b. sixth bend
c. quarter bend
d. long sweep - correct answerc. quarter bend
What is the maximum water temperature that can be supplied to a public hand washing
facility?
a. 98 degrees F
b. 110 degrees F
c. 120 degrees F
d. 125 degrees F - correct answerc. 120 degrees F
, A 4" building sewer is 175 feet long: if installed at 1/4" per foot slope, there will be about
how much total fall
a. 22 inches
b. 30 inches
c. 38 inches
d. 44 inches - correct answerd. 44 inches
What is the maximum interval (spacing) between manholes on a 12" on-site sewer?
a. 100 feet
b. 200 feet
c. 400 feet
d. 700 feet - correct answerc. 400 feet
The developed length of hot or tempered water piping from the source to the fixture
shall not exceed how many feet?
a. 50 feet
b. 75 feet
c. 100 feet
d. No limit - correct answera. 50 feet
If a 6" building drain has an elevation of 113' at the buidling wall and the public sewer
has an elevation of 101' at the point of tie-in which is 1700 feet away. Because of
available slope, your best solution is to:
a. downsize the sewer to 4" in order to increase the flow veloctiy.
b. install the 6" piping with 2% for the first 400 feet closest to the building.
c. install the 6" with uniform slope for the whole run.
d. up size the sewer to 8 inch. - correct answerd. up size the sewer to 8 inch.
Bell traps are prohibited?
a. True
b. False
c. True, unless used as a solids interceptor.
d. False, as long as it has a trap seal of 2 - 4 inches it can be used. - correct answera.
True
Floor Drains shall not be connected to a storm drain system?
a. True
b. False
c. False, mechanical rooms do not present a hazard