Section 2 - Materials and Parts

Question 1

Who has custody of the most up-to-date APML?

Answer 1

Director, Division of Plumbing

Question 2

How can one obtain a copy of the APML?

Answer 2

mail a self-addressed stamped envelope to Division of Plumbing

Question 3

Viega or ridgid propress must be installed

Answer 3

per manufacturers requirements and only sizes 1/2in -4in above slab only

Question 4

Trenchless systems for repairing sewers must have

Answer 4

video recording of pipe before to be reviewed by plumbing inspector and then afterwards again. Sewer shall also be properly tested for leaks. In some cases a permit is required.

Question 5

1. SharkBite Evopex polymer fittings are approved for burial if _____
2. Sharkbite Universal DZR brass fittings or Sharkbit EvoPex Dzr brass transition fittings are approved for burial if _____

Answer 5

1. it’s not under or encased in concrete and not beneath a building
2. same +wrapped in self-fusing, formaldehyde free and chlorine free, fully cured silicone tape with min .02 in.

Question 6

CPVC must be stored how? why?

Answer 6

Under cover. to avoid unnecessary dirt accumulation and sun exposure

Question 7

Each length of pipe, fitting, trap, fixture, or device used in plumbing or drainage shall be indelibly marked with the:

Answer 7

1. weight or quality
2. maker’s mark or name (manufacturer’s spec number)

Question 8

CI Pipe Supports-Vertical

Answer 8

Approved clamps and hangers support at bases and at sufficient floor intervals to meet local code

Question 9

CI Pipe Supports-Horizontal

Answer 9

not more than 18in from joint, terminal ends of runs or branches, each change of direction, firmly secure closet bends

Question 10

CI stainless bands shall be

Answer 10

tightened to 60lbs torque

Question 11

Steel and Wrought Iron Pipe-Vertical

Answer 11

screwed-ever other story with ferrous metal support
mechanical joint-every story height

Question 12

Steel and Wrought Iron Pipe-Horizontal

Answer 12

1.5 in and above- 12ft intervals
1.25 and smalller-8ft intervals

Question 13

Brass, Copper, Seamless Stainless steel tubing, and brass tubing-Cleaning

Answer 13

end of tube cleaned with fine sand cloth or special wire brush slightly more than required to enter the socket of the fitting

Question 14

Copper -vertical

Answer 14

1.5 and larger - at each story
1.25 and smaller -at each story and 10ft intervals

Question 15

Copper-horizontal

Answer 15

1in and smaller-6ft intervals
1.25 and larger -10ft intervals

Question 16

Joints for stainless, copper and brass must be ….

Answer 16

soldered

Question 17

Sch 40 ABS and PVC-limited use and exceptions

Answer 17

limited to buildings under 45ft in height unless: limited to sch 40 or 80 with specific labeling, install is made in compliance with manu recommendations, and firestop systems are inspected with ASTM E2174 by approved inspection agency

Question 18

PVC/ABS installed under concrete floors shall have

Answer 18

4in grillage on all sides

Question 19

PVC/ABS horizontal support

Answer 19

intervals not more than 4ft, end of branches and change of direction with freedom of movement

Question 20

PVC/ABS vertical support

Answer 20

at bases, upward movement not restricted

Question 21

Commingling of plastic pipe-it shall not be unless you use

Answer 21

male or female adapters or approved transition fittings

Question 22

CPVC-vertical

Answer 22

at each floor level

Question 23

CPVC-horizontal

Answer 23

1in or less-3ft
1.25 or larger-4ft intervals

Question 24

CPVC secured with

Answer 24

smooth straps to allow for movement

Question 25

CPVC threaded adapters shall not be used to transition to _____ , nor should union type fittings that use gaskets or orings to seal dissimilar connections but must use _______

Answer 25

metal
compression type fittings, over-molded transition fittings, and push-type fittings

Question 26

PEX - if placed in soil with rock, pipping shall be

Answer 26

covered with 6in of coarse sand or pea gravel

Question 27

PEX-if passing through a foundation wall

Answer 27

must use a rigid sleeve that spans distance from within the wall out to the undisturbed soil to prevent shearing

Question 28

PEX-if buried under building

Answer 28

no fittings used

Question 29

PEX-through studs or plates

Answer 29

plastic grommets

Question 30

PEX shall not be installed where it is subject to or within

Answer 30

direct or indirect UV light, open flame, petroleum based caulking or sealants, prolonged exposure to free chlorine greater than 4ppm, within 12 in of any recessed light fixture, within 6in of any gas appliance

Question 31

PEX shall be tested at a pressure

Answer 31

between 100 and 40 PSI

Question 32

PEX-Horizontal supports

Answer 32

1in and smaller-32in
1.25 and greater-48in

Question 33

PEX vertical supports

Answer 33

at base of each story with mid story guide and not rigidly secured

Question 34

Floor flanges for WC and Service Sinks or similar shall be of what material

Answer 34

hard lead, brass, cast iron, galv iron, ABS, or PVC

Question 35

Prohibited joints and connection

Answer 35

if it has an enlargement chamber, recess with a ledge shoulder, or reduction of the pipe area in the direction of flow

Question 36

Lead is prohibited in install or repair of public or private water systems for human consumption, But that does not apply to

Answer 36

those for nonpotable services and toilets (etc) tub fillers, shower valves, service saddles or water distribution main gate valves 2in or larger