Lesson 8-10

Question 1

is the flow of water, or other liquid mixture or substances into the distributing pipes of a potable supply of water from any source, other than its intended source

Answer 1

Back Flow

Question 2

refers to the back flow of used con- taminated or polluted water from a plumbing fixture or vessel into a water supply pipe due to a negative pressure in such a pipe.

Answer 2

Back Siphonage

Question 3

Refers to any group of two or more similar adjacent fixtures which discharges into a common horizontal waste pipe or soil branch.

Answer 3

Battery of Fixture

Question 4

Is synonymous with faucet, cock, tap, plug, etc. the word faucet is preferred.

Answer 4

Bib

Question 5

A flange that closes the end of a pipe. There is no opening for the passage of water.

Answer 5

Blind Flange

Question 6

A controlled outlet on a pipeline used to discharge water.

Answer 6

Blow off

Question 7

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

Answer 7

Branch

Question 8

Is a vent connecting one or more indi- vidual vents with a vent stack or stack vent

Answer 8

Branch vent

Question 9

Is a branch vent that serves two or more traps, and extends from the front of the last fixture connec- tion of a horizontal branch to the vent stack

Answer 9

Circuit vent

Question 10

includes, all pip- ing within the public or private premises that conveys sewage, rainwater, or other liquid waste, to a legal point of disposal. It does not include the mains of public sewer system private or public sewerage treatment or disposal plant.

Answer 10

Drainage System

Question 11

A vent that does not carry water or water borne wastes.

Answer 11

Dry Vent

Question 12

Is the minimum cross sectional area at the point of water supply discharge, measured or expressed in terms of diameter of a circle. If the opening is not a circle, the diameter of a circle that is equivalent to the cross sectional area. (This is applicable to air gap)

Answer 12

Effective Opening

Question 13

Is a pipe connecting several fixtures

Answer 13

Fixture Branch

Question 14

Is the drain from the trap of a fixture to the junction of that drain with any other drain -pipe.

Answer 14

Fixture Drain

Question 15

Is a water supply pipe connecting the fixture with the fixture branch

Answer 15

Fixture Supply

Question 16

Is a device located inside the tank for the purpose of maintaining water level for eflective flush- ing of the water closet.

Answer 16

Flood Level

Question 17

A metallic sleeve called or otherwise joined to an opening in pipe into which a plug is screwed that can be removed for the purpose of cleaning or examining the interior of the pipe.

Answer 17

Ferrule

Question 18

Means any pipe of fitting which makes an angle of more than 45” with the vertical

Answer 18

Horizontal Pipe

Question 19

Is the discharge from any fisture,
appliance or appurtenance in connection with a plumbin system which does not receive fecal matter

Answer 19

Liquid Waste

Question 20

is the principal artery of the system to which branches may be connected

Answer 20

Main

Question 21

Is the principal artery of the venting sys tem to which vent branches may be connected

Answer 21

Main Vent

Question 22

Are installed receptacies, devices, or appliances which we supplied with water, or which receives of discharges liquid or liquid borne waste, with or without discharge imo drainage system which maybe directly or indirectly connected.

Answer 22

Plumbing Fixtures

Question 23

includes the water supply distribution pipes, plumbing Extures and traps, soil, waste and vent pipes, house drain and house sewers including their respective connections, devier appurtenances within the property lines of premis 6/11 water treating or water using equiprie

Answer 23

Plumbing System

Question 24

Is a water supply pipe which extend vertically one full storey or more to convey water to branches or fix tures

Answer 24

Riser

Question 25

is the installation of all parts of the plumb ing system which can he completed prior to the installa tion of fixtures. This include drainage, water supply, vent piping and the necessary fixture supports

Answer 25

Rough-In

Question 26

is a Y consertion used on fire lines so that two lines of hose maybe connected to a hy drant or to the same nozzle

Answer 26

Siamese Connection

Question 27

A vertical pipe usually used for the stor age of water, frequently under pressure

Answer 27

Standpipe

Question 28

Is any pipe that conveys the discharge of water closets of fixture having similar functions, with or
without the discharge from other fistures, to the building drains (house drain) or building sewer (house sewer)

Answer 28

Soil Pipe

Question 29

A pit or receptacle at a low paint to which the liquid waste are drained

Answer 29

Sump

Question 30

Is a fitting or device so designed as to provide when properly vented a liquid seal that will prevent the back passage of aar without materially affecting the now of sewage through it.

Answer 30

Trap

Question 31

Is the maximum vertical depth of liquid that trap will retain, measured between the crown weir and top of the dip of the trap

Answer 31

Trap seal

Question 32

Is a pipe installed in a vertical position or at an angle of not more than 45° with the vertical.

Answer 32

Vertical Pipe