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WorksheetsUPC Chapter 9
Total questions: 58
Worksheet time: 58mins
Name
Class
Date
1.
Vent pipes protect fixture traps against ______.
a)
Evaporation
b)
Siphonage
c)
Clogging
d)
Cross-connection
2.
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
3.
Under certain conditions, traps serving sinks that are part of the equipment of bars, soda fountains, and counters ______.
a)
Need not to be vented
b)
Shall be vented
c)
May be wet-vented
d)
Need relief vents
4.
One factor for determining the size of a vent pipe is ______.
a)
It's accessibility
b)
It's length
c)
The type of building
d)
The price of material
5.
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
6.
The maximum horizontal length permitted for a required 2 inch vent pipe is ______ feet.
a)
20
b)
40
c)
60
d)
120
7.
The diameter of an individual vent shall not be less than ______ inches.
a)
1 1/4
b)
1 1/2
c)
2
d)
3
8.
The distance "X" in the sketch above shall be at least _____ inch(es).
a)
1
b)
2
c)
6
d)
12
9.
The acceptable method for connecting a vent pipe to a horizontal drain pipe is shown above by sketch(es) ______.
a)
A
b)
A and B
c)
B
d)
B and C
10.
The vent pipe opening is above the weir of the trap in _______ sketch(es).
a)
A
b)
B
c)
C
d)
A and B
11.
A 2 inch vent pipe will serve a total of ______.
a)
14 bathtubs
b)
16 Showers
c)
24 lavatories
d)
15 water closets
12.
Each vent pipe or stack shall extend through it's flashing and shall terminate vertically above the roof at at least _____ inches
a)
6
b)
12
c)
18
d)
24
13.
The distance from the vent pipe opening to any vertical surface shall be at least _____ inches.
a)
6
b)
12
c)
18
d)
24
14.
Horzontal termination of vents from any openable window, door opening, air intake or vent shaft shall be not less than ______.
a)
1 foot
b)
2 feet
c)
10 feet
d)
12 feet
15.
Excetp for alleys and streets, vent termination from property lines shall not be less than ______.
a)
1 foot
b)
2 feet
c)
3 feet
d)
4 feet
16.
Vents terminating in roof areas used for sunbathing shall be extended above the roof at least ______ feet.
a)
7
b)
10
c)
12
d)
15
17.
Joints at the roof around vent pipes shall be made water tight by the use of ______.
a)
Waterproof epoxy sealer
b)
Three layers 15 pound felt
c)
Hot tar compound
d)
Flashings
18.
Parallel vent stacks are required for drainage stacks that extend above the building drain _____.
a)
Five stories or more
b)
10 stories or more
c)
50 feet
d)
100 feet
19.
The parallel vent stack shall be connected to the drainage stack by means of a _____ vent(s).
a)
Circuit
b)
Loop
c)
Yoke
d)
Continous
20.
The pipe size for the common vent serving lavatories installed back-to-back shall not be less than ______.
a)
1
b)
1 1/4
c)
1 1/2
d)
2
21.
Horizontal vent pipes shall be level or so graded as to drip back by gravity to the ______.
a)
Main vent pipe
b)
Main soil stack
c)
Loop vent
d)
Drainage pipe they serve
22.
The minimum size vent pipe that may serve a 4 inch trap is ______ inches.
a)
1 1/4
b)
1 1/2
c)
2
d)
4
23.
Increasing vents one pipe size will ______.
a)
Provide increased drainage
b)
Allow a uniform installation
c)
Allow vents of longer lengths
d)
Allow vents to be shorter
24.
Changes in direction of vent piping shall be made by ______.
a)
Heating the pipe and bending
b)
Welded joints where possible
c)
Threaded fittings or caulked joints
d)
Appropriate use of fittings
25.
A drainage stack extends 14 stories above the building drain and is served by a parallel vent stack. A relief yoke vent connection between the vent stack and the drainage stack is required at floors ______ and ______.
a)
5, 10
b)
4, 9
c)
4, 10
d)
5, 9
26.
The fitting that is required for making the yoke vent intersection with the drainage stack is a _______.
a)
Sanitary tee
b)
Tapped tee
c)
Double tee branch
d)
Wye branch
27.
The size of the yoke vent shall be ______.
a)
Not less in diameter than either the drainage or the vent stack, whichever is smaller
b)
A minimum of 4 inches
c)
Two pipe sizes larger than the drain line
d)
Two pipe sizes smaller than the drain line
28.
If, due to structural conditions, horizontal vents are less than 6 inches above the overflow rim of the fixture, the horizontal portion shall be installed with ______.
a)
Venting material and fittings
b)
Drainage material and fittings and graded to drain
c)
Smaller diameter piping
d)
Larger diameter piping
29.
Vent terminals in locations having minimum design temperatures below 0°F shall be a minimum of ______.
a)
2 inches
b)
4 inches
c)
One pipe size larger than required
d)
Both 2 inches and one pipe size larger than required
30.
Copper tube shall not be used for _____.
a)
Chemical waste
b)
Water piping
c)
Underground drainage piping
d)
Above ground drainage piping
31.
ABS or PVC DWV piping installations exposed within ducts or plenums shall be limited to a flame-spread index of not more than 25 or a smoke index of 50 except for _______.
a)
Two-story building
b)
Structures not over three floors above grade
c)
The restrictions found in IS 5 and IS 9
d)
Single-family homes
32.
Sheet lead used for flashings of vent terminals shall be not less than ______ pounds per square foot.
a)
2
b)
3
c)
4
d)
5
33.
Section "A" refers to ______.
a)
A combination waste and vent system
b)
A vertical wet-venting system
c)
Special venting for island fixtures
d)
An indirect waste and vent system
34.
The pipe section between the kitchen sink inlet and the lavatory inlet (point "A") serves as a ______.
a)
Waste pipe for the kitchen sink
b)
Waste pipe for the lavatory
c)
Vent pipe for the lavatory
d)
Branch vent for both fixtures
35.
The total number of fixture units at point "B" is ______ units.
a)
One
b)
Two
c)
Three
d)
Four
36.
The vent connection "B" shall be a minimum pipe size of ______ inch.
a)
1 1/4
b)
1 1/2
c)
2
d)
2 1/2
37.
In this type of installation, the diameter of the lavatory trap arm ______.
a)
Shall be increased one pipe size
b)
Shall be increased two pipe sizes
c)
May be as normally required
d)
May be decreased one pipe size
38.
The sketch represents _______.
a)
Reverse circuit loop
b)
Continuous waste and vent
c)
Special Venting for island sinks
d)
Combination waste and vent
39.
The pipe section at "A" is called a ______ vent.
a)
Foot
b)
Yoke
c)
Loop
d)
Fixture
40.
The fitting at "B" is a _______.
a)
45° elbow
b)
90° elbow
c)
1/16 bend
d)
1/8 bend
41.
The minimum size diameter at "C" is ______ inches.
a)
1 1/2
b)
2
c)
2 1/2
d)
3
42.
They type of fitting acceptable at "D" is a ______.
a)
Sanitary tee
b)
Sanitary tapped tee
c)
90° elbow
d)
90° sweep
43.
Of the following fittings, the one that would be approved at "E" is the ______.
a)
1 1/2 inch wye branch fitting
b)
1 1/2 inch sanitary tee
c)
2 inch tapped tee
d)
2 inch sink tee
44.
The maximum length for piping "C" without a vent is ______ feet.
a)
5
b)
10
c)
15
d)
25
45.
The diameter of the tailpiece for the floor drain at "A" is _____ inches.
a)
1 1/2
b)
2
c)
2 1/2
d)
3
46.
The minimum diameter for branch "A" is ______ inches.
a)
2
b)
2 1/2
c)
3
d)
4
47.
The minimum diameter for vent piping "B" shall be approximately equal to ______.
a)
The cross-sectional area of the drain pipe served
b)
One-half the cross-sectional area of the drain pipe served
c)
the size of the uppermost trap
d)
one-half the size of the uppermost trap.
48.
Long mains shall be provided with relief vents at intervals of ______ feet.
a)
50
b)
75
c)
100
d)
300
49.
The vent connection "B" shall be ______.
a)
Downstream of the last fixture
b)
Within 15 feet of the fixture discharging the most total volume of waste
c)
Within 15 feet of the uppermost fixture
d)
Taken off above the centerline of the drain pipe and downstream of the trap being served
50.
Water closets, bathtubs, showers, and floor drains within one or two bathrooms located on the same floor level for private use shall be permitted to be vented by a(n) ______ vent.
a)
Circuit
b)
Wet
c)
Indivdual
d)
Yolk
51.
Horizontal wet venting is _______.
a)
Not permitted by the code
b)
Allowed for public bathrooms
c)
Allowed for two bathrooms rooms in a dwelling or guest room on the same floor
d)
Required to be a minimum 4 inches in size
52.
The fixture that serves as a dry vent connection to the horizontal wet vent is a ______.
a)
Kitchen sink
b)
Laundry tub
c)
Lavatory
d)
Bar sink
53.
The vent system shall be designed to prevent a trap seal from being exposed to a pressure differential on the outlet side of the trap that exceeds _____ inch of water column.
a)
0.50
b)
1
c)
2
d)
3
54.
The horizontal wet vent shall be not less than two inches in diameter for ______ dfu or less.
a)
2
b)
4
c)
5
d)
8
55.
The dry vent connection to the went vent shall be a(n) _____ vent.
a)
Relief
b)
Yoke
c)
Foot
d)
Individual
56.
The ______ fixture drain or trap arm connection to the horizontal wet vent shall be downstream of any fixture drain or trap arm connections.
a)
Shower
b)
Floor drain
c)
Water closet
d)
Bathtub
57.
An engineered vent system shall be designed by ______ and approved in accordance with Section 301.4.
a)
A registered design professional
b)
The building owner
c)
The plumber
d)
An engineer
58.
Joints at the roof, around pipes, shall be made water tight by the use of _____.
a)
A sealing compound
b)
Flashing material
c)
15 pound felt
d)
Oakum
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