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50 Cards in this Set
- Front
- Back
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What is the Minimum withstanding pressure? (Testing) |
One and a half times. |
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Minimum trap seal depth for non-acid? |
1.5" |
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Minimum trap seal depth for acid traps? |
2" |
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Maximum lead content in solder on potable systems? |
0.2% |
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Thickness of lead flashing? |
1.73mm |
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Caulked lead joint depth? |
25mm |
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Hanger spacing of Steel Pipe 6" and less. |
12ft |
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Hanger spacing of Steel Pipe greater than 6" |
8ft |
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Hanger spacing of ABS or PVC pipe. |
4ft |
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Hanger spacing of copper tube greater than 1" |
10ft |
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Hanger spacing of copper tube 1" or less |
8ft |
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Hanger spacing of pex plastic pipe |
3ft |
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Minimum backfill of pipe in trench. |
1ft |
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Minimum water pressure test (Water Column) |
3m for 15min |
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Maximum temperature for fixture discharge |
75C |
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Minimum depth an interceptor can be used as a trap |
1.5 |
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A cleanout is required on the upstream and directly above every running trap. |
True |
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What kind of cleanout is needed on building sewers greater than 8"? |
A manhole. |
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A building sewer shall not change direction except pipes smaller than 6" can... |
Change 5 degrees every 3m or not more than 45 degrees. |
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After how much change of direction until a BUILDING DRAIN requires a cleanout? |
135 degrees |
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Maximum spacing for cleanouts on pipe less than 3" |
25ft |
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Maximum spacing of cleanout on pipe 3-4" |
3" cleanout spaced at 15m or 49ft |
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Maximum spacing of cleanouts on pipe larger than 4" |
4" cleanouts spaced at 26m or 85ft |
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Spacing of manhole 24inches or less? |
90M |
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Spacing of manhole over 24" |
150m |
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True/False: There shall be no change of direction between a cleanout and the trap it serves. |
True |
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How much change of direction between a cleanout and the drainage system it serves? |
45 |
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Maximum length of fixture outlet pipe? |
1.2m |
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Size of a building drain downstream of the third water closet? |
4" |
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Soil or waste stacks that serve more than than 6 water closet shall not be less than? |
4" |
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No change in the size of the leader with a nominally horiztonal offset is required if: |
Located immediately under the roof, is not more than 6m long, has a slope of not less than 1 in 50 |
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What is the hydraulic load from a fixture that produces continuous flow? |
31.7 fixtures units for each litre per second of flow |
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Where a fixture or equipment that produces a continuous or semi-continuous flow drains into a combined sewer or to a storm sewer is... |
900L for each litre per second of flow |
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How is the hydraulic load determined for roof drains? |
Maximum rainfall for 15min over a 25 year period. |
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What is the conversion of fixture units to loads in litres. |
If the fixture units is 260 or fewer the load is 2360L If the fixture units is more than 260 the load is 9.1L for each fixture unit. |
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Where a wet vent extends through more than one story what is the total discharge from any one story? |
4FU |
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How long of an offset is permitted for a wet vent? |
1.2m for pipes 2 inches or less or 2.5m for pipes larger than 2 inches |
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How many floors until you need a vent stack? |
More than 4 floors |
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Fixtures are permitted to be connected to a vent stack provided: The total hydraulic load of the connected fixtures does not exceed __ fixture units. |
8 Fixtures units. At least one fixture is connected on the vertical, all fixtures are located in the lowest story, the section of the vent pipe shall be sized as a wet vent. |
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How many stories before a yoke vent is needed? |
11 stories, counted from the top bottom. |
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Where do you connect a yoke vent? |
Each section of 5 stories counted from the top down, and at or immediately above each offset and be connected to the vent stack at least 1m above the floor level of the lowest story in the section. |
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When can a trap arm be connected to the vertical section of a circuit vent? |
Two maximum fixtures, 1.5 FU each. |
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Minimum length of trap arm? |
2x pipe diameter |
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Maximum fall of a trap arm? |
1 pipe diameter |
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Maximum change of direction of a trap arm? |
135 degrees |
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Maximum change of direction for a toilet trap arm? |
225 degrees |
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Maximum distance of toilet trap arms? Vertical and horizontal? |
1m vertical, 3m horizontal. |
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Vent termination from an openable window or door must be... |
1m above or 3.5m in any other direction. |
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Vent termination on a roof that supports an occupancy must be... |
Not less than 2m above it 3.5 any other direction |
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Vent termination above ground must be... and .... from every propety line |
2m above the ground and 1.8m from every property line. |
