Epoxy and Engineering Knowledge Quiz

Is epoxy toxic?

• Yes

• No

What kind of chemical reaction occurs when epoxy hardens?

• Exothermic

• Endothermic

• Combustion

Where can you laminate large parts?

• Anywhere in The 8

• On the table by the laser cutters

• Our workspace

How do you prevent epoxy popsicles? (Select all that apply)

• Mix the proper ratio of epoxy to hardener

• Use as little epoxy as possible

• Spread out epoxy when done with it

When should you use a washer on a bolted joint?

• Whenever you can

• Only if its on carbon fiber

• Only if its on a 3D print

• They don't actually do anything

What is preload for?

• To make sure a bolt stays on tight

• To break in the bolt

• To create the clamping force

What takes most of the load in a bolted joint?

• The bolt

• The nut

• The washer

• The members

How do you prevent shear-out (a.k.a tear-out)

• Increasing the shear strength of the bolt

• Choosing a larger bolt

• Drilling a larger hole

• Keeping holes at least 2 diameters away from the edge

Can you use Loctite on a 3D printed part?

• Yes

• No

Can you tap 3D printed parts?

• Yes

• No