Question

The nearest approach to a perfect plastic body is

• A. diamond
• B. quartz fiber
• C. putty
• D. none of these

Answer 1

The correct option is C putty

$\begin{array}{c}\text{Perfect Plastic body - A material body that does}\\ \text{not recover its original shape or size at}\\ \text{all even after removal of the deforming}\\ \text{forces is called a perfectly plastic body.}\\ \text{Example Wax, Putty.}\\ \text{Therefore putty is near to perfect plastic body.}\end{array}$