Mechanics of Materials & Structures Online Test – Paper 3

1. If magnitude and direction of a load does not change with respect to time, this type of load is called

2. *Thrust is induced in the case of

3. The brittle materials have low toughness because they

4. A simply supported beam of length I carries a load varying uniformly from zero at the left end to the maximum at the right end. The maximum bending moment occurs at a distance of

5. The bending moment in a cable carrying a system of loads will be

6. If the stress produced by a prismatic bar is equal to the working stress, the area of the cross-section of the prismatic bar becomes

7. *Proof resilience is the greatest stored energy at

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

9. 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°

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

11. *If a cantilever beam of 8m long has a uniformly distributed load of 2KN/m throughout the length and a 10KN point load at the center of the beam, find the moment at the center:

12. The value of buckling load is ... than the crushing load in the case of a long column

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

14. *Maximum bending moment occurs where

15. The square root of the ratio of moment of inertia and cross-section area of the member is known as

16. *The ratio of the intensity of stress in a case of a suddenly loaded to that of gradually applied load is

17. The ratio of moment of inertia of a square section to that of a circular section for a given depth is given by

18. The maximum deflection in a cantilever beam carrying a uniformly distributed load (w) over spans is (Where L is span of beam, W is total load and EI is flexural rigidity)

19. *In the case of a fixed beam loaded at a point at its center, the number of points at which BM is zero

20. *The maximum bending moment caused by a moving load on a simply supported beam is

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

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

23. The strain energy stored by a member when strained within the elastic limit is known as

24. Find the elongation of a bar if c/s area of the bar is A, length 1, applied load p, modulus of elasticity of material is E

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

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

27. The limit of proportionality depends upon

28. *The rate of change of shear force is called

29. *The simple bending equation is

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

31. *In a simply supported beam with span (L) having a triangular load with its intensity 0 at both ends and W at center. The maximum BM will be

32. A viscoelastic material

33. The shear force on a beam and the displacement are related by

34. In a simply supported beam with span, L subjected to a point load, W at the center. Find the maximum bending moment induced in the beam

35. *Which of the following gives Bulk Modulus?

36. Identify the correct relationship that exists among the modulus of elasticity (E), modulus of rigidity (N), and bulk modulus (k) is

37. A cantilever beam of span 4m and carrying a point load of 10 kN located at 3m from the fixed end. Find the BM at the fixed and free end

38. The shear force on a beam is proportional to

39. Which of the following gives Modulus of Rigidity

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

41. *The bending moment at a section tends to bend or deflect the beam and internal stresses resist its bending. The resistance offered by the internal stress to the bending, is called:

42. *Which of the following gives Modulus of Elasticity

43. *A beam is said to be of uniform strength if

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

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

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

47. *Moment of inertia of an object having rectangular section of 'b' as width and 'd' as depth is given by:

48. An orthotropic material has

49. *Hooke's law holds good up to:

50. Which one is correct if the deflection of a beam is y