Phase 1 Rainwater System Installation

What is the primary purpose of gravity rainwater systems used on dwellings?

• To divert water away from vulnerable parts of the building

• To increase the aesthetic appeal of the building

• To provide drinking water directly from the roof

• To generate electricity using rainwater

Answer explanation

The primary purpose of gravity rainwater systems used on dwellings is to divert water away from vulnerable parts of the building.

Which material is commonly used for modern gutter systems and is known for being lightweight and inexpensive?

• Cast Iron

• Extruded Aluminium

• PVCu

• Copper

Answer explanation

PVCu is commonly used for modern gutter systems due to its lightweight and inexpensive nature.

What is a key advantage of using extruded aluminium for gutter systems?

• Very cheap to install

• Highly flexible and resistant to corrosion

• Prone to rapid degradation

• Requires frequent maintenance

Answer explanation

The key advantage of using extruded aluminium for gutter systems is that it is highly flexible and resistant to corrosion.

Which type of gutter profile is known for its high capacity and is generally used where the roof area is large?

• Deep Half Round

• Half Round

• Square Section

• Ogee

Answer explanation

Deep Half Round gutter profile is known for its high capacity and is generally used where the roof area is large.

What is the main function of a soakaway drain in a rainwater system?

• To filter rainwater for drinking

• To store water for long-term use

• To redirect water to municipal drains

• To allow water to soak away to the water table below ground

Answer explanation

To allow water to soak away to the water table below ground

Which document contains information regarding the calculation and design of rainwater systems?

• BSEN12056-3:2000

• Building Regulations Approved Document H3: 2015

• ISO9001 Quality Management

• Manufacturer technical instructions

Answer explanation

The document containing information regarding the calculation and design of rainwater systems is BSEN12056-3:2000.

What is the expected lifespan of PVCu guttering materials?

• 25 years

• 10 years

• 100 years

• 50 years

Answer explanation

PVCu guttering materials have an expected lifespan of 50 years, making the correct answer choice 50 years.

What is the primary method used for jointing cast iron gutters?

• Solvent welding

• Magnetic coupling

• Socket and spigot with bitumen paint and linseed oil putty

• Snap-fit clip system

Answer explanation

The primary method used for jointing cast iron gutters is socket and spigot with bitumen paint and linseed oil putty.

Which factor is NOT used to determine the type (size) of gutter system used on a dwelling?

• Running outlet position

• Roof area

• Rainfall intensity

• Color preference of the homeowner

Answer explanation

Color preference of the homeowner is not a factor used to determine the type of gutter system, unlike running outlet position, roof area, and rainfall intensity.

What is the correct fall ratio recommended by most gutter manufacturers to ensure effective water flow?

• 1:1000

• 1:800

• 1:600

• 1:350

Answer explanation

Most gutter manufacturers recommend a fall ratio of 1:600 to ensure effective water flow, making 1:600 the correct choice.