Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

The stress at which extension of a material takes place more quickly as compared to the increase in load is called ......
Options
A Elastic point
B Plastic point
C Breaking point
D Yielding point
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

The yielding point (or yield point) is the stress at which a material begins to deform plastically. Beyond this point, the material extends more quickly without a significant increase in load. The elastic point is where deformation is still elastic, plastic point is vague, breaking point is where fracture occurs.

Hint

This is the point where permanent deformation starts.

Question Info