Refers to public health conditions related to clean drinking water and adequate treatment and disposal of human excreta and sewage.

_________ that is being discharged by water closet.

_____________ pipes that convey waste coming from water closet. It can accept both wastes from the water closet and the fixtures.

_________ that are coming from various fixtures.

__________ 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 is intended source.

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

___________ is the length of a soil or waste stack corresponding in general to a storey height, but in no branches from one floor or storey of a building are connected to the stack.

A vent that does not carry water or water borne wastes

___________ Is the extended portion of a pipe that is closed at one end permitting the stagnation of water or air therein

It is made from asbestos, fibers and Portland

Cement. The thickness of the pipe is twice as

That of that standard cast iron pipe.

Is also one of the oldest plumbing materials used by the Egyptians, the Greeks and the Roman builders as soil and waste pipe.

Is made out from mild steel, drawn through a die and welded, cast into 6.00 meters long.

One of the oldest materials used for sewer lines. It is made out from clay, cast into length of 75cm treated with glazing compound.

One of the most expensive types of pipe. This pipe is made of an alloy or zinc and copper mixed at 15% and 85% respectively.

This pipe is better in quality than steel pipe for plumbing installation. Test showed that wrought iron pipe is more resistant to acid waste than the steel pipe.

1.The ________ is the heaviest. It is suitable for underground installation.

1.The_________ is lighter than k type available in both the rigid and flexible form. It is commonly used in residential water supply line and for radiant heating installation

1.The __________ is the thinnest and available only in a rigid form. This type of copper pipe is specially designed for small water supply lines and for radiant heating installation.

The most popular and generally specified

Material for drainage system in buildings is the

_______________.