Engineering Fastenings Quiz

What is the primary purpose of screw fastenings and rivets in engineered products?

• To permanently join components

• To allow access and removal for maintenance and repair

• To enhance the appearance of the product

• To reduce the weight of the product

What can be done if components joined by rivets need to be separated?

• Heat the rivets

• Paint over the rivets

• Grind off the rivet heads or drill out the rivets

• Tighten the rivets further

Which thread system is still used in the USA for small sized screw fastenings, especially in electrical and IT equipment?

• Metric thread system

• BA thread system

• ISO thread system

• Unified thread system

What is the standard thread system used by most countries around the world?

• Unified thread system

• BA thread system

• Metric thread system

• ISO thread system

What does the 'M' in the specification of a bolt, like M12 X 1.25 X 100, stand for?

• Material type

• Metric system

• Manufacturer

• Model number

What is the purpose of using a washer under the nut in a bolted joint?

• To increase the pressure on the nut

• To reduce the size of the nut

• To spread the load and prevent damage to the component face

• To make the nut look bigger

Which type of bolts are known for their general use and are not specifically tailored for precision?

• Fitted bolts

• Black bolts

• Steel bolts

• Brass bolts

What is the main benefit of bolts made from high tensile steel?

• They are cheaper

• They are lighter

• They are stronger and suitable for heavy duty applications

• They are more colorful

Why should the unthreaded part of a bolt's shank extend through the joint interface?

• To make it easier to unscrew

• To ensure there is no shearing force on the weaker threaded part

• To hold more pieces together

• To reduce the weight of the bolt

What is the purpose of using a locking fluid on the threaded end of a stud?

• To make it easier to remove

• To prevent it from easily becoming unscrewed

• To increase the weight of the stud

• To change the color of the stud