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Workshop Calculation and Science Practice Test: Elasticity
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In physics and materials science, elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed.

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Workshop Calculation and Science Practice Test: Elasticity
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25 Questions

1. What is the name of the point ʹCʹ?
2. If a wire is stretched and doubled in length, then its Young’s modulus would be ____
3. What force will be required to punch a hole of 10 mm dia in a 1 mm thick plate, if the allowable shear stress is 50N/mm² ? (π = 22/7)
4. A load of 10Kg is suspended from a vertical wire of 300.25cm length and 0.005 cm2 cross-Section . After removing the force, the wires length reduces to 300cm.Find out the modulus of elasticity for wire or material.
5. What is the term used for maximum stress attained by a material before rupture?
6. The unit of modulus of elasticity is ____________
7. Ultimate stress =
8. What is the ratio of change in length to original length?
9. Which is thermosetting plastic?
10. A bolt of 2 cm diameter and 10 cm length can bear a load of 100 Kg. If E= 2×106 Kg/cm2 then calculate the increase in length of the bolt .
11. Which force acts on crank shaft?
12. What is the ratio between lateral strain and longitudinal strain?
13. Which is elastic material?
14. What is the ratio between ultimate stress to working stress?
15. The ratio of shear stress and shear strain is _________
16. Which law states that within elastic limit stress is directly proportional to strain?
17. Steel is ____________ elastic as compared to rubber.
18. What is the ratio between the change in dimension to its original dimension of the substance?
19. The external and internal diameters of a hollow pillar made of cast iron are 12” and 10” respectively. Find out how much lead can it bear on 3.5 ton per square inch ?
20. What is the ratio of ultimate load to area of original cross section?
21. Which type of stress?
22. What is the young’s modulus if a wire of 2m long, 0.8 mm² in cross section increases its length by 1.6 mm on suspension of 8 kg weight from it?
23. Which one is the ratio of stress?
24. What is the ratio between stress and strain?
25. As per Hooke’s law, stress is _______to strain

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