D&T Common specialist principles Quiz

What are the properties of a material that make it suitable for use in a bridge?

• Flexibility, low density, high conductivity, low cost

• High strength, durability, resistance to corrosion and fatigue

• Brittleness, low durability, high reactivity, low melting point

• Low strength, fragility, susceptibility to corrosion and fatigue

Explain the difference between ferrous and non-ferrous metals and give an example of each.

• Ferrous metals are non-magnetic, while non-ferrous metals are magnetic. An example of a ferrous metal is aluminum, and an example of a non-ferrous metal is steel.

• Ferrous metals contain iron, while non-ferrous metals do not contain iron. An example of a ferrous metal is steel, and an example of a non-ferrous metal is aluminum.

• Ferrous metals contain copper, while non-ferrous metals contain iron. An example of a ferrous metal is brass, and an example of a non-ferrous metal is iron.

• Ferrous metals are lightweight, while non-ferrous metals are heavy. An example of a ferrous metal is lead, and an example of a non-ferrous metal is titanium.

How does the composition of a material affect its properties?

• By changing the color of the material

• By causing the material to become lighter in weight

• By having no effect on its properties

• By influencing the way its elements or compounds interact with each other

What is the purpose of a control system in a manufacturing process?

• To create chaos and confusion in the production line

• To increase the cost of production

• Regulate and monitor the production process

• To reduce the efficiency of the manufacturing process

Describe the role of sensors in a control system.

• Sensors have no role in a control system

• Sensors only provide output to the controller

• Sensors detect changes in the environment or process and provide input to the controller.

• Sensors create changes in the environment or process

Explain the concept of feedback in a control system.

• Ignoring the system's output completely

• Making adjustments to the input before receiving the system's output

• Using the system's output to make adjustments to the input

• Using the system's output to shut down the entire system

How can sustainable materials be used in product design?

• By using materials that harm the environment

• By replacing traditional materials with eco-friendly alternatives

• By increasing the use of non-renewable resources

• By ignoring the impact of materials on the environment

What are the environmental benefits of using sustainable practices in design and technology?

• Environmental benefits include waste reduction, resource conservation, and minimized environmental impact.

• Depletion of natural resources

• Increased waste production

• Negative impact on the environment

What are the key factors to consider when setting up an efficient production line?

• Layout, workflow, equipment, staffing, and safety measures

• Weather, time of day, and customer preferences

• Number of windows, type of flooring, and wall decorations

• Color, size, weight, and shape

How does just-in-time manufacturing contribute to reducing waste in industrial practices?

• By stockpiling excess inventory to ensure availability

• By producing goods in large batches regardless of demand

• By minimizing inventory levels and only producing goods as they are needed

• By using outdated machinery and technology