Exploring Engineering Principles and Practices

What is the primary role of engineers in society?

• To create art and music

• To develop the built and technological world

• To write literature

• To govern countries

Which of the following is a historical development in engineering from the 4th millennium BC?

• Steam engine

• Wheel

• Helicopter

• Pacemaker

According to Newton's first law of motion, what will happen to a body at rest if no external force acts on it?

• It will start moving

• It will remain at rest

• It will accelerate

• It will change direction

• 10 N

• 100 N

• 50 N

• 150 N

Which of the following is a vector quantity?

• Mass

• Time

• Displacement

• Temperature

What is the primary advantage of using a lever?

• It reduces the weight of an object

• It magnifies the effort applied

• It changes the colour of an object

• It increases the speed of an object

Which of the following materials is known for its ability to be resoftened and reformed?

• Thermosets

• Thermoplastics

• Ceramics

• Metals

What is the primary bond type found in metals?

• Ionic

• Covalent

• Metallic

• Hydrogen

Which of the following is a property of a crystalline material?

• Amorphous structure

• Regular ordered patterns

• No definite chemical composition

• Random atomic arrangement

What is the main constituent of ferrous metals?

• Aluminium

• Copper

• Iron

• Zinc