Impact Fracture Tests MCQ’s

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This set of Materials Science Multiple Choice Questions & Answers (MCQs) focuses on “Impact Fracture Tests”.

1. Which of the following properties is impact strength indicative of?
a) Elasticity
b) Hardness
c) Stiffness
d) Toughness

2. Which of the following is false?
a) Notch is a sudden change in section of a material
b) Stress concentration is produced due to notches
c) Notches change the stress applied to the body
d) Smaller the tip of the notch, less the increase in stress

3. What is the unit of impact strength?
a) N/m
b) MN/m
c) MN/m2
d) N/m2

4. Which of the following is not notch sensitive?
a) Carbon
b) Steel
c) Plastic
d) FCC metal

5. What is the angle of a standard notch?
a) 10°
b) 20°
c) 45°
d) 30°

6. What is the dimension of material used in case of Charpy test?
a) 10 mm * 10 mm * 55 mm
b) 10 mm * 10 mm * 65 mm
c) 5 mm * 5 mm * 55 mm
d) 5 mm * 5 mm * 65 mm

7. Charpy test is not a type of impact test.
a) True
b) False

8. What is the dimension of material used in case of Izod test?
a) 10 mm * 10 mm * 75 mm
b) 10 mm * 10 mm * 65 mm
c) 5 mm * 5 mm * 75 mm
d) 5 mm * 5 mm * 65 mm

9. The direction of a blow of hammer is opposite to the notch section in case of Izod test.
a) True
b) False

10. Which of the following is the Charpy V impact strength for annealed pure copper?
a) 30 J
b) 31 J
c) 32 J
d) 34 J

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