UPC: Ch 9 Vents UPDATED ACTUAL Questions and CORRECT
Answers
B Vent pipes protect fixture traps against ____________ _.
a. evaporation
b. siphonage
c. clogging
d. cross-connections
C In the above sketch, the primary settling tank _________ _.
a. requires a backwater valve
b. requires a vent pipe
c. is correct as shown
d. does not require a cleanout
A Under certain conditions, traps serving sinks that are part of the equipment of
bars, soda
fountains, and counters __________ _.
a. need not be vented
b. shall be vented
c. may be wet-vented
d. need relief vents
B One factor for determining the size of a vent pipe is ___________ _.
a. its accessibility
b. its length
c. the type of building
d. the price of material
D The combination of vent pipes that will provide sufficient aggregate cross-
sectional vent area
for required a 4-inch house sewer is ____________ _.
a. 1 - 2 inch and 4 - 1 1/2 inch
b. 2 - 2 inch and 1 - 2 1/2 inch
c. 3 - 2 inch and 1 - 1 1/2 inch
d. 4 - 2 inch
B The maximum horizontal length permitted for a required 2-inch vent pipe is
_____________.
a. 20 feet
b. 40 feet
c. 60 feet
d. 120 feet
, A The diameter of an individual vent shall not be less than___________ _.
a. 1-1/4 inches
b. 1-1/2 inches
c. 2 inches
d. 3 inches
C The distance "X" in the sketch above shall be at least ________ _.
a. 1 inch
b. 2 inches
c. 6 inches
d. 12 inches
A The acceptable method for connecting a vent pipe to a horizontal drain pipe is
shown above
by ___________ _.
a. sketch "A"
b. sketches "A" and "B"
c. sketch "B"
d. sketches "B" and "C"
B The vent pipe opening is above the crown weir of the trap in ________ _.
a. sketch "A"
b. sketch "B"
c. sketch "C"
d. sketches "A" and "B"
C A 2-inch vent pipe will serve a total of _________ _.
a. 14 bathtubs
b. 16 showers
c. 24 Iavatories
d. 15 water closets
A Each vent pipe or stack shall extend through its flashing and shall terminate
vertically above
the roof at least________ _.
a. 6 inches
b. 12 inches
c. 18 inches
d. 24 inches
Answers
B Vent pipes protect fixture traps against ____________ _.
a. evaporation
b. siphonage
c. clogging
d. cross-connections
C In the above sketch, the primary settling tank _________ _.
a. requires a backwater valve
b. requires a vent pipe
c. is correct as shown
d. does not require a cleanout
A Under certain conditions, traps serving sinks that are part of the equipment of
bars, soda
fountains, and counters __________ _.
a. need not be vented
b. shall be vented
c. may be wet-vented
d. need relief vents
B One factor for determining the size of a vent pipe is ___________ _.
a. its accessibility
b. its length
c. the type of building
d. the price of material
D The combination of vent pipes that will provide sufficient aggregate cross-
sectional vent area
for required a 4-inch house sewer is ____________ _.
a. 1 - 2 inch and 4 - 1 1/2 inch
b. 2 - 2 inch and 1 - 2 1/2 inch
c. 3 - 2 inch and 1 - 1 1/2 inch
d. 4 - 2 inch
B The maximum horizontal length permitted for a required 2-inch vent pipe is
_____________.
a. 20 feet
b. 40 feet
c. 60 feet
d. 120 feet
, A The diameter of an individual vent shall not be less than___________ _.
a. 1-1/4 inches
b. 1-1/2 inches
c. 2 inches
d. 3 inches
C The distance "X" in the sketch above shall be at least ________ _.
a. 1 inch
b. 2 inches
c. 6 inches
d. 12 inches
A The acceptable method for connecting a vent pipe to a horizontal drain pipe is
shown above
by ___________ _.
a. sketch "A"
b. sketches "A" and "B"
c. sketch "B"
d. sketches "B" and "C"
B The vent pipe opening is above the crown weir of the trap in ________ _.
a. sketch "A"
b. sketch "B"
c. sketch "C"
d. sketches "A" and "B"
C A 2-inch vent pipe will serve a total of _________ _.
a. 14 bathtubs
b. 16 showers
c. 24 Iavatories
d. 15 water closets
A Each vent pipe or stack shall extend through its flashing and shall terminate
vertically above
the roof at least________ _.
a. 6 inches
b. 12 inches
c. 18 inches
d. 24 inches
