Fundamentals of Machine Design (3141907) MCQs
MCQs of Basics of stress and strain
| 11. |
The local compression which exists at the surface of contact between two members of a machine part that are in relative motion is known as
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Answer:
Option (c) |
| 12. |
Localized compressive stress at the area of contact between two members of a machine part, that are relatively at rest is known as
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Answer:
Option (c) |
| 13. |
The ratio of the largest load in a test to the original cross-sectional area of the test piece is called
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Answer:
Option (d) |
| 14. |
When a body is subjected to two equal and opposite pushes, as a result of which the body tends to reduce its length, the stress and strain-induced is compressive.
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Answer:
Option (a) |
| 15. |
When a bar of length l, width b and thickness t is subjected to a pull of P, its
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Answer:
Option (c) |
| 16. |
When a bar of length l, width b, and thickness t is subjected to a push of P, its
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Answer:
Option (d) |
| 17. |
The deformation per unit length is called
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Answer:
Option (d) |
| 18. |
The strain is equal to (where l = Original length and δl = Change in length)
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Answer:
Option (b) |
| 19. |
Whenever a material is loaded within elastic limit, stress is __________ strain.
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Answer:
Option (b) |
| 20. |
The ratio of change in volume to the original volume is called
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Answer:
Option (c) |
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