Chapter 2: Definitions

Question 1

ABS

Answer 1

Acrylonitrile-Butadiene-Styrene

Question 2

When applied to a fixture, connection, appliance or equipment, shall mean having access thereto, but which may require prior removal of an access panel, door or similar
obstruction.

Answer 2

ACCESSIBLE

Question 3

Shall mean direct access without necessity of removing any panel, door or similar obstruction

Answer 3

READILY ACCESSIBLE

Question 4

A physical separation, which may be a low inlet into the indirect waste receptor from the fixture, appliance or device indirectly connected.

Answer 4

AIRBREAK

Question 5

The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe, plumbing fixture, appliance or appurtenance conveying waste to the flood level rim of the receptor.

Answer 5

AIR GAP, DRAINAGE

Question 6

An unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood-level rim of any tank, vat or fixture.

Answer 6

AIR GAP, WATER DISTRIBUTION

Question 7

An organization primarily established for purposes of testing to approve standards and approved by the Administrative Authority

Answer 7

APPROVED TESTING AGENCY

Question 8

The flow of water or other liquids, mixtures or substances into the distributing pipes of a potable supply of water from any source other than from its intended source.

Answer 8

BACKFLOW

Question 9

Condition or any arrangement whereby reverse flow can occur.

Answer 9

BACKFLOW CONNECTION

Question 10

Occurs due to an increased reverse pressure above the supply pressure. This may be due to pumps, boilers, gravity or other sources of pressure.

Answer 10

BACKPRESSURE BACKFLOW

Question 11

Device or means to prevent flow of liquid from returning to the source of supply. Also called “Vacuum Breaker”

Answer 11

BACKFLOW PREVENTER

Question 12

The flowing back of used, contaminated or polluted water from a plumbing fixture or vessel into a water supply pipe due to a negative pressure in such pipe.

Answer 12

BACK-SIPHONAGE

Question 13

A device installed in the drainage system to prevent reverse flow.

Answer 13

BACKWATER VALVE

Question 14

The part of the vent line, which connects directly with an individual trap underneath or behind the fixture and extends to the branch or main vent pipe at any point higher than the fixture or fixture traps it serves. This is sometimes called an “Individual Vent”.

Answer 14

BACKVENT PIPE

Question 15

A valve opened & closed by the fall & rise, respectively of an attached ball floating on the surface of the liquid.

Answer 15

BALL COCK

Question 16

A type of pipe connection in which a ball-shaped end is held in a cuplike shell and allows movements in every direction.

Answer 16

BALL JOINT

Question 17

Any of two or more similar adjacent fixture which discharge into a common horizontal soil or waste branch.

Answer 17

BATTERY OF FIXTURES

Question 18

That portion of a pipe which, for a short distance, is sufficiently enlarged to receive the end of another pipe of the same diameter for the purpose of making a caulked or push-on joint.

Answer 18

BELL OR HUB

Question 19

a tool for straightening or bending lead pipe.

Answer 19

BENDING PIN (or IRON)

Question 20

Also called a “stiz” bath.

Answer 20

BIDET

Question 21

a pipe flange that is not drilled for bolt holes

Answer 21

BLANK FLANGE

Question 22

a flange that closes the end of the pipe. There is no opening for the
passage of liquid & gas

Answer 22

BLIND FLANGE

Question 23

a controlled outlet of a pipeline to discharge liquid or detritus.

Answer 23

BLOW-OFF

Question 24

a valve outlet of a boiler that permits discharge of accumulated sediment.

Answer 24

BOILER BLOW-OFF

Question 25

any part of piping system other than the main, riser or stack.

Answer 25

BRANCH

Question 26

a length of soil or waste stack corresponding in the general to a storey height, but in no case less than 2.43m within which the horizontal branches from one floor or storey of a building are connected to the stack.

Answer 26

BRANCH INTERVAL