Question

Bolt and nut made of same metal is preferred in practice. Why?

Answer 1

Answer:

Nuts and bolts made up of the same metal are preferred because they have the same strength and stress resistance.

Answer 2

Bolt and nut made of same metal is chosen as:

Explanation:

• When the fastener system is of a different material than the material being fastened either the fastener or the base material.
• It may be corroded which depends on the difference in electrode potential of the metals.
• Necessarily the difference in potential sets up a mini battery and causes corrosion.