Mechanics of Materials & Structures Online Test – Paper 3

1. *A diagram that shows the variation of axial force

2. The difference between SF values at any two sections will be equal to

3. *The Young's Modulus of elasticity is defined as the ratio of stress & strain within the

4. *Mathematically, strain may be defined as

5. Find the slenderness ratio of the column of M.I. = 10000cm4, Area =100cm^2 & effective length =3.0m

6. An orthotropic material has

7. The variation of the bending moment in the segment of a beam where no external load is present is

8. A cantilever beam is the one which is supported with

9. A brittle material has

10. Permanent set is

11. Which of the following gives Poisson's ratio?

12. *The maximum bending moment in a simply supported beam UDL is applied

13. *Which of the following is dimensionless?

14. Find the value of thrust, if the member (beam) is subjected to an inclined force having a magnitude of 5 kN and an inclination with the vertical of 30°

15. *A member with a cross section of a mm^2 is subjected to a force of P N. It is L mm long and of Young's Modulus, E N/mm^2. The strain will be

16. If α is the coefficient of linear expansion, T is the rise in temperature, then thermal stress is given by

17. A shear force diagram of a simply supported beam shows constant shear force throughout the span. It is subjected to

18. *Which of the following gives Bulk Modulus?

19. *The law "Stress is proportional to strain within certain limits" is formulated by

20. If the Poisson's ratio of a material is 0.25, the ratio of Modulus of Rigidity to the Young's Modulus is

21. Which of the following materials will have the highest Young's Modulus?

22. Shear strain is defined as

23. *Short column taking maximum load having equal section

24. *The forces which meet at one point, but their lines of action do not lie in a plane, are called:

25. Moment of inertia of a rectangular beam bxd is

26. The bending moment acting on the plane of an element will cause the following type of stress on the plane

27. If the elasticity of the material is zero then the material is said to be

28. *Load required to produce unit deflection is called

29. *A point where SF is zero, BM is

30. The shear force on a beam is proportional to

31. According to Hook's law, which one is correct?

32. Which of the following is a relatively ductile material?

33. The maximum bending moment caused by a large number of equally spaced identical loads on a simply supported beam is (W = wL)

34. *The centre of gravity of a triangle is at the point where three

35. The method of increasing fatigue resistance by overstressing the metal by successively increasing the loading is known as

36. In a fixed beam, the points of contraflexure,

37. *The shear force in a concrete beam is assumed to act

38. In the case of a simply supported beam subjected to UDL, the maximum shear force occurs at a point

39. The stress due to temperature change in a member depends on

40. The brittle materials have low toughness because they

41. The maximum deflection in a cantilever beam carrying a concentrated load 'w' at the free end is (Where L is span of bean, W is total load and EI is flexural rigidity)

42. A section of a beam is said to be in pure bending if it is subjected to

43. Find the maximum BM induced in a simply supported beam if the beam is subjected to a point load of 4 KN at the center of the beam and the span of the beam is 4 m

44. *Stress in a beam due to simple bending is

45. *If the shear force along a section of a beam is zero, the bending moment at the section is:

46. The section modulus of a rectangular section is proportional to

47. The section modulus of a circular section about an axis through its C.G. is

48. *The property of a material by which a body returns to its original shape after removal of the force is called

49. *Maximum bending moment occurs where

50. The maximum deflection of a beam occurs at