External Walls in Construction

Which of the following is a common material used for constructing external walls in domestic buildings in the UK?

• Timber

• Brick

• Aluminium

• Glass

What is the main purpose of cavity walls in external wall construction?

• To provide decoration

• To improve insulation and prevent moisture penetration

• To reduce the weight of the building

• To increase the thickness of the wall

Which insulation material is commonly used in external wall cavities?

• PIR boards

• Plasterboard

• Glass insulation

• Wool

What is the function of a damp-proof course (DPC) in external walls?

• To provide structural support

• To prevent rising damp from the ground

• To improve sound insulation

• To act as a decorative feature

Which of the following is NOT a type of external wall?

• Solid wall

• Cavity wall

• Partition wall

• Timber frame wall

What is the main advantage of using timber frame construction for external walls?

• It is fireproof

• It is quick to erect and lightweight

• It requires no insulation

• It is the strongest

Which of the following is a method used to control moisture in external walls?

• Painting the wall

• Installing a vapour barrier

• Using thicker bricks

• Adding more windows

What is the purpose of wall ties in cavity wall construction?

• To support the roof

• To connect the inner and outer leaves of the wall

• To provide decoration

• To hold insulation in place

Which finishing material is commonly used to protect and decorate the external surface of a wall?

• Plasterboard

• Render

• Plaster

• Chipboard

What is the main structural function of a lintel in an external wall?

• To provide insulation

• To support loads above openings such as doors and windows

• To act as a decorative feature

• To prevent moisture ingress