Which of the following is a natural building material?

• Stone

• Steel

• Glass

• Plastic

The built environment refers to:

• Natural landscapes

• Only residential buildings

• Human-made surroundings such as buildings and infrastructure

• Forests

Which of the following materials is considered manufactured?

• a) Stone

• b) Steel

• c) Wood

• d) Clay

What is the main binding material in concrete?

• Cement

• Sand

• Water

• Aggregate

Which of the following materials is used primarily for scaffolding and eco-friendly structures?

• Steel

• Glass

• Bamboo

• Plastic

The process where cement reacts with water to harden is known as:

• Calcination

• Hydration

• Oxidation

• Polymerization

Which of the following is NOT a factor in selecting building materials?

• Cost

• Durability

• Availability

• Personal preference only

The primary chemical composition of wood includes:

• Cellulose, lignin, and hemicellulose

• Silica and alumina

• Calcium carbonate

• Iron oxide

Which of the following is true about metals used in construction?

• They are always pure

• Only alloys are used

• They can be pure or alloys depending on use

• Metals are not used in construction

Masonry construction involves:

• Pouring concrete

• Bonding individual units with mortar

• Welding steel frames

• Assembling prefabricated panels