Mechanics of Materials & Structures Online Test – Paper 3

1. Rate of change of bending moment is equal to

2. The difference in ordinate of the shear force between any two sections is equal to the area under

3. The maximum bending moment caused by a moment M applied at a distance 'a' from one end on a simply supported beam is.... (where L=span, a>L/2)

4. What is tenacity?

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

6. The maximum number of transverse shear forces possible at one end of an element of a plane frame are

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

8. *The slope of an elastic curve at the point of contraflexture

9. The difference between BM values at any two sections will be equal to

10. Shear strain is defined as

11. 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

12. The stress necessary to initiate yielding is considerably

13. *Young's modulus is the ratio of

14. *"A simply supported beam of span L carries a uniformly distributed load W. The maximum bending moment, M is:

15. *Load required to produce unit deflection is called

16. *The phenomenon of decreased resistance of material due to the reversal of stress is called

17. Load carrying capacity of fixed beam is

18. The value of Poisson's ratio always remains

19. *The relation between the radius of curvature (R), bending moment (M), and flexural rigidity (EI) is given by

20. The phenomenon of slow growth of strain under steady tensile stress, i.e., increasing with time, is called

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

22. In the case of an H section, the maximum shear stress will occur at

23. Strain energy of a member may be defined as work done on it

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

25. *Centre of gravity of a semi-circle is... above the base AB (Dia.)

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

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

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

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

30. The impact tests are used to determine

31. In a beam, the neutral plane

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

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

34. *The critical bending moment caused in a fixed end beam loaded with a uniformly distributed load (W = wL) throughout is

35. 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)

36. *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

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

38. A brittle material has

39. The effective length of a column if both ends are hinged

40. Which of the following end conditions permits the displacement in any direction and also rotation

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

42. If a constant section is subjected to a uniform/ pure bending moment throughout, its length bends to

43. Effective length of column fixed at one end and hinged at the other end is

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

45. Permanent set is

46. The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length is

47. "When a rectangular beam is loaded transversely the maximum compressive stress is developed on the :

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

49. 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

50. The maximum deflection of a simply supported beam subjected to a uniformly distributed load (w) over the span is