• Metallurgical Engineering Reference

# Fracture Mechanics - Materials Science MCQ Questions

Fracture Mechanics MCQs : Here you will find MCQ Questions related to "Fracture Mechanics" in Materials Science. These Fracture Mechanics MCQ Questions Will help you to improve your Materials Science knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations

Question 1

How many ways of applying a force to enable a crack to propagate?

A. 1
B. 2
C. 3
D. 4

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Question 2

Which of the following is Sliding mode?

A. Mode I
B. Mode II
C. Mode III
D. Mode IV

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Question 3

Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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Question 4

Fracture mechanics was developed during World War I by English aeronautical engineer?

A. Josiah Willard Gibbs
B. Ortiz
C. Repetto
D. A. A. Griffith

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Question 5

The stress needed to fracture bulk glass is around ?

A. 1 MPa
B. 10 MPa
C. 100 MPa
D. 1000 MPa

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Question 6

Mode III : Tearing mode (a shear stress acting parallel to the plane of the crack and parallel to the crack front).

A. Yes
B. No
C. Can be yes or no
D. Can not say

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Question 7

Which of the following is not a mode of application of force for crack propagation?

A. Opening mode
B. Sliding mode
C. Tearing mode
D. Rolling mode

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Question 8

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

A. 1
B. 900
C. 1200
D. 1400

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Question 9

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

A. J-m^2
B. J-m
C. J/m
D. J/m^2

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Question 10

Fracture stress decreases as fiber diameter decreases

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

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