Explore topic-wise MCQs in Materials Science.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Materials Science knowledge and support exam preparation. Choose a topic below to get started.

1.

Fracture stress decreases as fiber diameter decreases.

A. True
B. False
Answer» C.
Discussion
2.

For polymers close to glass transition temperature which of the following can be a value of G?

A. 1 J/m<sup>2</sup>
B. 900 J/m<sup>2</sup>
C. 1200 J/m<sup>2</sup>
D. 1400 J/m<sup>2</sup>
Answer» C. 1200 J/m<sup>2</sup>
Discussion
3.

What is the unit of G from Griffith s energy criterion?

A. J-m<sup>2</sup>
B. J-m
C. J/m<sup>2</sup>
D. J/m
Answer» D. J/m
Discussion
4.

Which of the following scientist proposed a modification to Griffith s theory?

A. G. R. Irwin
B. Albert Einstein
C. Isaac Newton
D. There was no modification proposed.
Answer» B. Albert Einstein
Discussion