QUIZ 1- CMT

What are the different classifications of stone?

• igneous, sedimentary, metamorphic

• sedentary

• volcanic

• metamorphosed

How are bricks classified based on their composition?

• Plastic bricks, Rubber bricks, Paper bricks

• Clay bricks, sand lime bricks, engineering bricks, concrete bricks, and fly ash clay bricks

• Wood bricks, Metal bricks, Glass bricks

• Stone bricks, Brick-shaped rocks, Ice bricks

What is the process involved in manufacturing clay bricks?

• Mining clay, blending with water, shaping into molds, drying, firing in a kiln

• Mixing clay with sand, shaping into molds, drying in the sun, painting with colors

What are the main components used in making lime?

• Sand and water

• Limestone and heat

• Clay and sunlight

• Gravel and pressure

What are the properties of sedimentary stones?

• Visible layers, fossils, easily broken or crumbled

• Invisible layers, no fossils, hard and durable

• Visible layers, no fossils, extremely hard

• No layers, no fossils, easily dissolved

Explain the difference between igneous and metamorphic stones.

• Igneous stones are formed by erosion, metamorphic stones are formed by volcanic activity.

• Igneous stones are soft, metamorphic stones are hard.

• Igneous stones form from magma/lava cooling, metamorphic stones form from existing rocks transforming.

• Igneous stones are always black, metamorphic stones are always white.

What are the advantages of using bricks in construction?

• Bricks are expensive to produce

• Bricks are not environmentally friendly

• Bricks are advantageous in construction due to their durability, fire resistance, energy efficiency, low maintenance, and aesthetic appeal.

• Bricks are easily damaged

How does the firing process affect the strength of clay bricks?

• The firing process makes clay bricks more brittle and prone to breakage.

• The firing process has no impact on the strength of clay bricks.

• The firing process weakens the clay bricks by causing cracks to form.

• The firing process increases the strength of clay bricks by fusing clay particles together.

What is the purpose of adding sand to lime mortar?

• To improve workability, reduce shrinkage, and increase strength of the mortar mixture.

• To reduce the weight of the mortar mixture

• To add color to the mortar mixture

• To increase the setting time of the mortar

Discuss the environmental impact of stone quarrying.

• Stone quarrying reduces greenhouse gas emissions

• Stone quarrying promotes biodiversity

• Stone quarrying has no impact on the environment

• Stone quarrying can lead to habitat destruction, air and water pollution, soil erosion, and disruption of ecosystems.