Mechanics of Materials & Structures Online Test – Paper 3

1. The slenderness ratio of a vertical column of square cross-section of 10 cm side and 500 cm long is

2. *Thrust is induced in the case of

3. An orthotropic material has

4. *Fatigue is the failure of a material under:

5. The algebraic sum of the shear flow of a section in any direction must be equal to

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

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

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

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

10. The brittle materials have low toughness because they

11. A beam simply supported at ends is subjected to load. The maximum bending moment is located where

12. *In a simply supported beam subjected to a point load at the center, the maximum bending moment occurs at

13. A beam is supported over three rollers lying in the same plane. The beam is stable for

14. Maximum bending moment occurs at the center if the simply supported beam is subjected to

15. The moment of inertia of a triangular section b x h about the c-g is

16. *A member which does not regain its original shape after the load producing deformation is removed, is said to be:

17. Permanent set is

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

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

20. *As the elastic limit reaches, tensile strain

21. *Which of the following gives Modulus of Elasticity

22. The reaction at end A of the beam shown is

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

24. Buckling load for a given column depends upon

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

26. The maximum bending moment caused on a simply supported beam subjected to two equal concentrated loads (W/2) spaced at an equal distance (L/3) over the span is

27. Point of contraflexure is a point where bending moment

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

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

30. *The variation of the bending moment in the segment of a beam where the load is uniformly distributed is

31. The slope of the curve of B.M. diagram at any section will be equal to

32. The equivalent length of column fixed at one end and free at the other end is

33. *Compression members always tend to buckle in the direction of the

34. *The maximum BM produced in a simply supported beam having a span of 4 m and subjected to a UDL of 10 kN/m

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

36. Centrifugal force acts away from the center of the path while centripetal force

37. 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

38. Load carrying capacity of fixed beam is

39. *BM in a cantilever beam having a span of 1.8m and a uniformly distributed load of 4kg/m

40. The ratio of the effective length of a column and the minimum radius of gyration of its cross-sectional area is known as

41. *Which of the following is dimensionless?

42. The moment of inertia of a triangular section b x h about the base is

43. The shear center may be defined as

44. A viscoelastic material

45. If the value of Young's Modulus of elasticity for a material is zero, it implies that the material is

46. For a column, with both ends fixed, the crippling load will be equal to

47. The expression EI(d^4y/dx^4) at any section for a beam is equal to

48. *Dead load of a member is the

49. The bending moment diagram for a cantilever beam subjected to a moment at the end of the beam would be

50. *The maximum deflection of a simply supported beam subjected to a concentrated load (W) at the midpoint is