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74 Cards in this Set
- Front
- Back
- 3rd side (hint)
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A continuous vent is defined as |
A vent pipe that is an extension of a vertical section of a branch or fixture drain |
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A branch vent is best defined as |
A junction of two or more vent pipes |
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What is the maximum cumulative change of direction that cleanouts are required on the fixture drain serving a kitchen sink? |
90° |
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The maximum spacing of cleanouts for two-way rodding over 4" is: |
170' ( 52m ) |
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Why are vent pipes increased by at least one pipe size but not less than 3" before going through the roof? |
Protect from frost |
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Why are vent pipes increased by at least one pipe size but not less than 3" before going through the roof? |
Protect from frost |
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The minimum size dual vent serving fixtures with an 1 ½" trap and a 1 ¼" trap would be: |
1 ¼" |
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A dual vent means: |
A vent pipe that serves 2 fixtures and connects at the junction of the trap arms |
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According to table 2.5.8.1., what is the minimum permitted size for a wet vent? |
1-1/2" |
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According to table 2.5.8.1., what is the minimum permitted size for a wet vent? |
1-1/2" |
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What is the largest size trap arm or fixture drain 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 3" wet vent? |
None |
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A trap is required for subsoil drainage pipe if: |
it drains into a combined sewer |
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What is the proper order of fittings on a sump discharge (with direction of flow)? |
union, check valve, full port valve |
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A trap is required for subsoil drainage pipe if: |
it drains into a combined sewer |
⭐️ TQ |
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Where a subsoil drainage pipe is connected to a sanitary drainage system, the connection shall be made: |
on the upstream side of a trap with a cleanout |
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Where a subsoil drainage pipe is connected to a sanitary drainage system, the connection shall be made: |
on the upstream side of a trap with a cleanout |
⭐️TQ |
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The thermostat in a domestic water heater is normally set at what temperature? |
140°F ( 60° ) |
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The dip tube has a small hole near the top of the tank. This is to: |
prevent the siphoning of the hot water tank |
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A discharge tube from a hot water heater should: |
end within 12" ( 300mm ) of the floor |
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The temperature pressure relief valve on a hot water tank is designed to open at: |
210°F ( 99°C ) |
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The main purpose of the dip tube in a hot water tank is to: |
prevent the cold water from mixing with the hot water |
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When testing a water system with air, what pressure must be maintained and for how long? |
700kPa ( 100psi ) for 120 minutes |
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A shut off valve is required on the supply pipe to every: |
water closet |
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A pressure regulating valve on a water distribution system should provide a down stream pressure of no more than: |
80 psi |
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According to the code, what is the minimum water supply size for a bathtub? |
1/2" |
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What is the water line fixture unit rating for a domestic clothes washer? |
1.4FU |
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What is the minimum supply pressure for a tank operated water closet? |
Manufacturers specifications |
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What is the minimum supply pressure for a tank operated water closet? |
Manufacturers specifications |
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What is the maximum temperature setting on a shower valve? |
120°F ( 49°C ) |
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A service sink is installed with a preferable: |
3" P trap standard |
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Why does a clothes washer require a loop in the drain? |
to prevent the machine from draining by gravity |
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What is the maximum horizontal offset in a wet vent Larger than 2" |
2.5m |
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What is the minimum height of a laundry standpipe as well as being above flood level rim? |
24" ( 600mm ) |
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A commercial dishwasher has a: |
2" trap worth 3 FU |
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What is the maximum horizontal offset in a wet vent 2"and less? |
1.2m |
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The two basic types of commercial and residential garbage disposal units are |
continuous feed and batch feed |
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What is the maximum horizontal offset in a wet vent 2"and less? |
1.2m |
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The two basic types of commercial and residential garbage disposal units are |
continuous feed and batch feed |
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A garbage grinder must: |
Be drained through a Trap |
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What is the maximum horizontal offset in a wet vent 2"and less? |
1.2m |
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The two basic types of commercial and residential garbage disposal units are |
continuous feed and batch feed |
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A garbage grinder must: |
Be drained through a Trap |
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Vent pipes shall be installed without depressions. |
True |
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What is the water fixture unit load for a 6 LPF or less with a flush tank? |
2.2 |
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What is the table for sizing the minimum water supply to a fixture for distribution system? |
2.6.3.2.A |
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What is the minimum water supply pipe size for a bidet? |
3/8" |
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What is the water velocity of the hot distribution piping in a residence? |
1.5 |
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What is the water fixture unit load of a domestic dishwasher? |
1.4 |
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This toilet design is known as |
Siphon Jet Bowl |
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This toilet design is known as |
Siphon Jet Bowl |
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What table do we use to determine fixture unit load for drainage? |
2.4.9.3 |
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How do we determine the size of waterline to serve a fixture? |
NPC Table 2.6.3.2A |
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What is the minimum length of a flood drain trap arm? |
18” |
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Water closets with 6 litres per flush are considered to be |
ULF |
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Statement: Provision shall be made for maintaining the trap seal of a floor drain |
True |
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A 4” building sewer shall have a grade of at least: |
1-100 |
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What is the minimum size of building sewer connected to a public sewer? |
4” |
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A waste stack is sized according to: |
The number of fixture units and the number of FU's from any one storey |
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When is it necessary to install a backwater valve on a fixture? |
when they are below grade |
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Backwater valves should always be: |
Accesible |
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Backwater valves should always be: |
Accesible |
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What is the minimum size building drain according to the N.P.C. 2020? |
3" |
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What is the minimum size cleanout serving a 4” branch? |
3" |
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What is the maximum length of an 1 1/4" trap arm? |
1.5m 6’ |
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What is the minimum required size of a roof terminal serving an 1 ½" vent, where the vent pipe passes through a roof and may be subject to frost closure? |
3" |
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Nominally horizontal ABS or PVC plastic pipe must be supported at least every: |
4' ( 1.2m ) |
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A double sanitary T fitting shall not be used to connect the trap arms of: |
back outlet WC's |
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The minimum size of an individual vent serving a fixture with a 4" trap is: |
1-1/2" |
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What is the maximum accumulative change of direction for a water closet trap arm? |
225° |
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Trap arm, as is defined in the National Plumbing Code, means: |
the portion of fixture drain between the trap weir and the vent pipe fitting |
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Vents are installed to prevent trap seal loss caused by: |
back pressure |
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The minimum size wet vent serving a water closet and a basin is: |
2" |
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A soil-or-waste pipe may serve as a wet vent provided that there is not more than one nominally horizontal offset in the wet vent, and the offset does not exceed__________for pipes 2 inches or less in size. |
1.2m |
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