Introduction to Structures - JSS2 Basic technology Past Questions and Answers - page 2
Which type of structure is essential for creating safe, functional, and durable buildings?
Composite structure
Shell structure
Frame structure
Truss structure
What distinguishes composite structures from other types of structures?
They are made entirely of one material
They have no internal supports
They combine two or more different materials
They distribute loads through curved surfaces
Which type of structure is commonly used for bridges and buildings due to its strength and flexibility?
Shell structure
Composite structure
Frame structure
Truss structure
What advantage do shell structures offer in terms of architectural design?
They require fewer materials
They can cover large spans without internal supports
They are easier to construct than frame structures
They provide more aesthetic appeal
How do frame structures contribute to the stability of buildings and bridges?
By distributing loads through thin surfaces
By using thin, curved surfaces
By utilising beams and columns to support loads
By using only one type of material
What is the primary function of structures in engineering and architecture?
Structures in engineering and architecture primarily serve the function of providing stability and support to buildings, bridges, vehicles, and other constructions. They ensure that these constructions can withstand various loads and external forces such as gravity, wind, and seismic activity. This stability is crucial for ensuring safety, durability, and functionality of the built environment.
What are shell structures, and how do they distribute loads?
Shell structures are characterised by their thin, curved surfaces that distribute loads uniformly across their entire surface area. Unlike frame structures that rely on beams and columns, shell structures derive strength from their shape. This distribution of loads makes them efficient in material usage and allows them to cover large spans without the need for internal supports, making them ideal for applications like domes, vaults, and large roofs.
How do composite structures combine materials, and what advantages do they offer?
Composite structures combine two or more different materials to leverage their individual properties. For example, reinforced concrete combines the strength of steel with the durability of concrete. This combination allows composite structures to be stronger, lighter, and more versatile than traditional materials alone. They are commonly used in bridges, aircraft, boats, and various architectural applications where strength, durability, and weight are critical factors.
What are the key advantages of frame structures in construction?
Frame structures are composed of beams and columns that form a rigid framework to support loads. Their key advantages include flexibility in design, allowing for varied architectural styles, and the ability to handle significant loads over long spans. Frame structures are widely used in buildings and bridges because they provide a sturdy framework that can be customised to meet specific design requirements while ensuring structural integrity.
How do structures contribute to the functionality of everyday applications?
Structures play a crucial role in everyday applications by providing the framework and support needed for various constructions. In buildings, they ensure stability and safety for occupants. In bridges and transportation systems, they facilitate the movement of people and goods. In vehicles, structures ensure safety and efficiency. Understanding different types of structures helps optimise their design and application to meet specific functional requirements in diverse fields of engineering and architecture.