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84 Cards in this Set
- Front
- Back
What is the maximum distance from the bottom of the soil or waste stack the clean out fitting is required under certain conditions? |
Not more than 10 feet (3m) upstream of the bottom of the stack |
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The minimum size clean out serving an 8 inch building sewer is |
A manhole |
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A stack vent would be defined as |
Event that is the extension of a soil or Waste stack |
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According to the tables, what is the minimum size of a waist stack? |
1 1/4” |
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What is the minimum size of an individual vent serving a fixture with a 4 inch trap? |
1 1/2” |
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Which of the following types of traps seal loss would be solved by installing a vent? |
Back pressure |
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To size an individual vent you need to know the |
Trap size |
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Branch vent is best defined as |
A vent pipe connecting two or more individual vents |
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What is the largest size branch or fixture drain that can discharge into a stack vent |
This is not allowed |
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What is the maximum number of elbows that could be used on a water closet trap arm |
1- 90 degree Elbow and 6- 22.5 Degree Elbows |
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A branch drain is serving one bathtub and one laboratory what is the minimum size |
1 1/2” |
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A Sanitary tee cannot be used |
At the base of a stack and to connect horizontal drains |
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A drainage system starts at the: |
Flood level rim |
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The minimum grade on a 4 inch building drain is |
1% |
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A fixture drain Connects? |
The trap to another part of the drainage system |
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A floor drain does not need to be separately vented when the trap arm is |
3” incise and at least 18” (450 mm) long |
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Where would you most likely find a slip joint |
On a FOP |
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What is the minimum some vent size? |
2” |
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The fixture unit rating for a macerating water closet is |
4” |
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What is the minimum size of a secondary stack thats serving water water closet |
1 1/2” |
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How much clearance should be provided to access a clean out |
The clean out shall be in an accessible location |
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The maximum distance between wye clean outs on a 4” building drain is |
50’ (15m) |
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An “invert” would be |
The bottom inside surface of a horizontal pipe |
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The type of support normally used for vertical CISP is a |
Riser clamp |
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How many hangers would be required for 22 m (72’) of 1/2” copper tube? |
10 ( 22m divide 2.5m (table 2.3.4.5) = 8.8, round up to 9 and always add 1 = 10) |
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0.8 mm thick and 18 mm wide perforated strapping is acceptable to be used to support pipe sizes up to and including |
4” |
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Vertical steel pipe must be supported at |
Every second floor |
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What is the minimum height of water that must be applied when testing a building drain |
10’ (3m) |
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What is the minimum height of water that must be applied when testing a building drain |
10’ (3m) |
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An air test on a drainage system requires the test be held for at least |
15 minutes |
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What is the minimum size of a building sewer and a rural application |
3” |
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The max from developed length of a 2 “ branch vent with 20 fixture units is? |
46 m ( Table 2.5.8.3) |
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The purpose of a vent stack |
Is to relieve pressure at the base of the soil stack |
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Why is an offset RV sized one size smaller than an SV instead of a VS? |
Because you will not have a VS on a three-story building ( VS are only required on buildings 5 stories or more) |
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The type of water closet that is manufactured in one piece is a |
Siphon Vortex |
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The standpipe for an automatic clothes washer is usually installed to |
Prevent the machine from draining by gravity |
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The FLR on the kitchen sink is usually how far from floor |
36” (900mm) |
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The total fall on a trap arm must not exceed |
One inside pipe diameter |
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The maximum change of direction which may be made in a laboratory trap arm is? |
135° |
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A close couple toilet uses gravity to flush the toilet how does a Siphon vortex low profile one piece toilet work |
It uses tank water above and below the rim of the bowl |
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The minimum distance between a trap and its vent ( except for a floor drain) is |
Two pipe diameters |
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The outlet from a floor mounted water closet may drop a total of |
1.0m (39”) before running horizontally |
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The purpose of a vent is to |
Allow free flow of air and gases through the system. Reduce the chance of traps your loss. Reduce back pressure. |
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The maximum length of a trap arms serving a 3” floor drain at a minimum grade is |
3.75m (12’) |
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Develop length means |
The length along the centreline of the pipe including the fittings |
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The minimum horizontal distance from a plumbing vent termination and a property line is |
1.8m (6’) |
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The most downstream clean out on a building drain should be located |
At or near the building wall |
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ABS-DWV solvent is: |
Yellow |
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The minimum grade on a 3” drainage pipe is |
1/4 “ per foot (2%) |
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The minimum size of a roof ring serving of 3” vent is |
4” |
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The clean out plug for cast-iron trap must be made of |
Brass |
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The minimum rate of flow in a building sewer is |
2 ft./sec |
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The minimum size of a building sewer servicing a public sewer is |
4” |
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The keyword for preventing drainage from backing up is |
Backwater valve |
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The factors which would affect the size of a building drain are |
Grade Minimum size And hydraulic load |
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The factors which would affect the size of a branch are |
The hydraulic load |
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The factors which would affect the size of a branch are |
The hydraulic load |
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The maximum distance between clean outs (two way rodding) on a 2” fixture drain is |
15m (50’) |
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Are cleanouts required for soil or waste stacks? |
Always |
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Soil pipe bends are ordered by? |
Fractions of 360° |
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The minimum size clean out serving a 4 inch branch is |
3” |
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A sanitary tee in a drainage system maybe used to change direction from |
Horizontal to vertical |
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Fixture unit is a design factor for drainage systems one fixture unit is equal to |
6.25 imp gallons drained into an 1 1/4” pipe over 1 minute. |
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Fixture unit is a design factor for drainage systems one fixture unit is equal to |
6.25 imp gallons drained into an 1 1/4” pipe over 1 minute. |
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A Building sewer starts |
1m outside of the building |
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A pipe positioned at 45° from the vertical is considered to be |
Vertical |
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An individual vent can serve |
One fixture ( vent is sized by a table based on fixture trap size) |
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What is the smallest trap allowed underground? |
1 1/2” |
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When wet venting, what rules must apply? |
Fixtures on the same story, fixtures connected separately or directly, water closet is the lowest trap arm |
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A fixture must be at least as large as |
The fixture drain and the fixture outlet pipe |
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A Chase would most likely have |
Pipe in it |
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A Chase would most likely have |
Pipe in it |
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The maximum developed length of a continuous waste from a fixture waste opening to the water level in a trap is |
1200mm |
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A vent terminal must |
Be located 3.5 m away from an opening of a window or air inlet and be located at least 1 m above an opening window or air inlet |
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If fixture with 2” trap is not listed in table 2.4.9.3, it’s hydraulic load will be determined as |
3 Fixture units |
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Do usual fixture outlet pipe size for a bathtub is |
1 1/2” (38mm) |
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The maximum length of a 4” floor drain trap arm at min grade is |
32 feet |
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The minimum size of an individual event serving a kitchen sink is? |
1 1/4” (30mm) |
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The minimum length of a trap arm, 40mm in diameter, is? |
80mm |
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What is the maximum cumulative change of direction the cleanouts are required on the fixture drains serving a commercial kitchen sink or trip receptacle? |
90° |
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What would be the maximum number of tank type water closets that could drain into a 3” wet vent? |
None |
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When wet venting over 4 stories how do you size your stack vent? |
The same size as the wet vent |
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What is the largest size trap arm that can drain into a wet vent ? |
3” emergency floor drain |
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What would be the maximum number of tank type WC’s that could drain into a wet vent? |
0 |