Sanitation and drainage PowerPoint 9

What is the primary purpose of a trap under an appliance?

• To enhance water flow

• To stop noxious smells from entering the property

• To increase water pressure

• To reduce noise from plumbing

What are the common jointing methods for traps?

• Welding and soldering

• Push-fit and compression using a rubber seal

• Gluing and taping

• Bolting and screwing

What is the trap diameter for a wash basin?

• 32mm

• 40mm

• 75mm

• 100mm

Which appliance has a seal depth of 50mm for the soil stack?

• Bath

• Bowl urinal

• Washing machine

• Bidet

What is the minimum trap seal depth required for a gully?

• 25mm

• 38mm

• 50mm

• 75mm

Why can a bath and shower have a shallower seal depth?

• They are smaller and tapered

• They are larger and flat bottomed

• They are made of metal

• They have a built-in pump

Which appliances can discharge into a gully trap or hopper head?

• Toilets and sinks

• Sinks, showers, basins, and baths

• Washing machines and dishwashers

• All household appliances

Why are 'P' and 'S' traps named as such?

• Because of their colors

• Because of their sizes

• Because of their shapes

• Because of their materials

When is a 'P' trap commonly installed?

• When the discharge branch is vertical

• When the discharge branch is horizontal

• When the discharge branch is diagonal

• When the discharge branch is circular

When is an 'S' trap commonly installed?

• When the initial waste pipe is horizontal

• When the initial waste pipe is vertical

• When the initial waste pipe is diagonal

• When the initial waste pipe is circular