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Flashcards in Mock Test 1 Deck (9)
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1

Explain the combined system

We're surface water and foul water are carried away from a house using a single sewer pipe

2

Which is the proffered method of testing above ground drainage

Air test

3

List 3 good design properties of a sanitary appliance

Durable
None corrosive
Smooth surface
Must not absorb water

4

List 3 materials sanitary appliances are made from

Pressed steel
Firefly
Acrylic

5

What is capillary attraction

It is the force that allows a porous material to soak up a liquid

6

What is a sparge pipe

It is the length of pipe over a urinal that flushes water into the urinal

7

Explain laminar flow

Occurs when a fluid flows in parallel layers with no disruption between the layers

8

Give 2 reasons for ventilating drains

To maintain an equilibrium of pressure
To prevent the build up of foul air and the possibility of dangerous gases

9

Explain the term permanent hard water

If the water passes through types of salt like such as sandstone the salts are readily dissolved and held in the water without the need for carbon dioxide