What is a fundamental component in skyscraper construction?

• Wood

• Glass

• Steel

• Plastic

Answer explanation

Steel is a fundamental component in skyscraper construction due to its high strength-to-weight ratio, allowing for tall structures that can withstand various forces. Wood, glass, and plastic do not provide the necessary structural integrity.

What is the primary purpose of tuned mass dampers in skyscrapers?

• To increase height

• To reduce wind effects

• To enhance aesthetics

• To improve lighting

Answer explanation

The primary purpose of tuned mass dampers in skyscrapers is to reduce wind effects. They counteract vibrations caused by wind, enhancing the building's stability and comfort for occupants.

What is a skyscraper?

• A small residential building

• A tall, continuously habitable building with multiple floors

• A single-story commercial building

• A temporary structure for events

Answer explanation

A skyscraper is defined as a tall, continuously habitable building with multiple floors, distinguishing it from smaller or temporary structures. This definition aligns with the correct answer choice.

What is the function of a foundation in a building?

• To decorate the exterior

• To provide lighting

• To transfer the building's load to the ground

• To enhance the building's color

Answer explanation

The foundation of a building is crucial as it transfers the building's load to the ground, ensuring stability and support. This function is essential for the structural integrity of the entire building.

What is bedrock?

• A type of building material

• A solid layer of rock beneath the soil

• A decorative stone used in gardens

• A type of soil used for planting

Answer explanation

Bedrock refers to the solid layer of rock that lies beneath the soil. It serves as the foundation for the earth's surface and is not a building material, decorative stone, or type of soil.

What is a steel skeleton in skyscraper construction?

• A decorative feature on the roof

• A framework of steel beams and columns

• A type of window design

• A method of painting the building

Answer explanation

A steel skeleton refers to a framework of steel beams and columns that provides structural support for skyscrapers, allowing them to reach great heights while maintaining stability.

What is the purpose of a tuned mass damper in tall buildings?

• To enhance the building's appearance

• To increase the building's height

• To counteract movement caused by wind or seismic activity

• To reduce the building's weight

Answer explanation

A tuned mass damper is designed to counteract movement in tall buildings caused by wind or seismic activity, helping to stabilize the structure and enhance safety and comfort for occupants.

What is the first step in constructing a skyscraper after the foundation is laid?

• Installing windows and doors

• Erecting a steel skeleton

• Painting the exterior

• Landscaping the surroundings

Answer explanation

After laying the foundation, the first step in constructing a skyscraper is erecting a steel skeleton. This framework supports the building's structure and is essential before moving on to other tasks like installing windows.

Why is steel essential in the construction of skyscrapers?

• It is inexpensive

• It is lightweight and flexible

• It is strong and versatile

• It is easy to paint

Answer explanation

Steel is essential in skyscraper construction because it is strong and versatile, allowing for tall structures that can withstand heavy loads and various stresses. Its strength supports the building's height, while versatility enables diverse designs.

How do modern skyscrapers withstand wind forces?

• By using heavy concrete walls

• By incorporating aerodynamic shapes

• By having more windows

• By reducing the height of the building

Answer explanation

Modern skyscrapers withstand wind forces by incorporating aerodynamic shapes, which help reduce wind resistance and improve stability. Heavy concrete walls and more windows do not effectively address wind forces, and reducing height is not a practical solution.