Npc

Front 1

What is the Minimum withstanding pressure? (Testing)

Back 1

One and a half times.

Front 2

Minimum trap seal depth for non-acid?

Back 2

1.5"

Front 3

Minimum trap seal depth for acid traps?

Back 3

2"

Front 4

Maximum lead content in solder on potable systems?

Back 4

0.2%

Front 5

Thickness of lead flashing?

Back 5

1.73mm

Front 6

Caulked lead joint depth?

Back 6

25mm

Front 7

Hanger spacing of Steel Pipe 6" and less.

Back 7

12ft

Front 8

Hanger spacing of Steel Pipe greater than 6"

Back 8

8ft

Front 9

Hanger spacing of ABS or PVC pipe.

Back 9

4ft

Front 10

Hanger spacing of copper tube greater than 1"

Back 10

10ft

Front 11

Hanger spacing of copper tube 1" or less

Back 11

8ft

Front 12

Hanger spacing of pex plastic pipe

Back 12

3ft

Front 13

Minimum backfill of pipe in trench.

Back 13

1ft

Front 14

Minimum water pressure test (Water Column)

Back 14

3m for 15min

Front 15

Maximum temperature for fixture discharge

Back 15

75C

Front 16

Minimum depth an interceptor can be used as a trap

Back 16

1.5

Front 17

A cleanout is required on the upstream and directly above every running trap.

Back 17

True

Front 18

What kind of cleanout is needed on building sewers greater than 8"?

Back 18

A manhole.

Front 19

A building sewer shall not change direction except pipes smaller than 6" can...

Back 19

Change 5 degrees every 3m or not more than 45 degrees.

Front 20

After how much change of direction until a BUILDING DRAIN requires a cleanout?

Back 20

135 degrees

Front 21

Maximum spacing for cleanouts on pipe less than 3"

Back 21

25ft

Front 22

Maximum spacing of cleanout on pipe 3-4"

Back 22

3" cleanout spaced at 15m or 49ft

Front 23

Maximum spacing of cleanouts on pipe larger than 4"

Back 23

4" cleanouts spaced at 26m or 85ft

Front 24

Spacing of manhole 24inches or less?

Back 24

90M

Front 25

Spacing of manhole over 24"

Back 25

150m

Front 26

True/False: There shall be no change of direction between a cleanout and the trap it serves.

Back 26

True

Front 27

How much change of direction between a cleanout and the drainage system it serves?

Back 27

45

Front 28

Maximum length of fixture outlet pipe?

Back 28

1.2m

Front 29

Size of a building drain downstream of the third water closet?

Back 29

4"

Front 30

Soil or waste stacks that serve more than than 6 water closet shall not be less than?

Back 30

4"

Front 31

No change in the size of the leader with a nominally horiztonal offset is required if:

Back 31

Located immediately under the roof, is not more than 6m long, has a slope of not less than 1 in 50

Front 32

What is the hydraulic load from a fixture that produces continuous flow?

Back 32

31.7 fixtures units for each litre per second of flow

Front 33

Where a fixture or equipment that produces a continuous or semi-continuous flow drains into a combined sewer or to a storm sewer is...

Back 33

900L for each litre per second of flow

Front 34

How is the hydraulic load determined for roof drains?

Back 34

Maximum rainfall for 15min over a 25 year period.

Front 35

What is the conversion of fixture units to loads in litres.

Back 35

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.

Front 36

Where a wet vent extends through more than one story what is the total discharge from any one story?

Back 36

4FU

Front 37

How long of an offset is permitted for a wet vent?

Back 37

1.2m for pipes 2 inches or less or 2.5m for pipes larger than 2 inches

Front 38

How many floors until you need a vent stack?

Back 38

More than 4 floors

Front 39

Fixtures are permitted to be connected to a vent stack provided: The total hydraulic load of the connected fixtures does not exceed __ fixture units.

Back 39

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.

Front 40

How many stories before a yoke vent is needed?

Back 40

11 stories, counted from the top bottom.

Front 41

Where do you connect a yoke vent?

Back 41

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.

Front 42

When can a trap arm be connected to the vertical section of a circuit vent?

Back 42

Two maximum fixtures, 1.5 FU each.

Front 43

Minimum length of trap arm?

Back 43

2x pipe diameter

Front 44

Maximum fall of a trap arm?

Back 44

1 pipe diameter

Front 45

Maximum change of direction of a trap arm?

Back 45

135 degrees

Front 46

Maximum change of direction for a toilet trap arm?

Back 46

225 degrees

Front 47

Maximum distance of toilet trap arms? Vertical and horizontal?

Back 47

1m vertical, 3m horizontal.

Front 48

Vent termination from an openable window or door must be...

Back 48

1m above or 3.5m in any other direction.

Front 49

Vent termination on a roof that supports an occupancy must be...

Back 49

Not less than 2m above it 3.5 any other direction

Front 50

Vent termination above ground must be... and .... from every propety line

Back 50

2m above the ground and 1.8m from every property line.