Mechanics of Materials & Structures Online Test – Paper 3

1. Bending moment diagram of simply supported beam with a point load at the centre of the span is

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

3. The brittle materials have low toughness because they

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

5. *Young's modulus is the ratio of

6. Normally, the numerical value of Poisson's is

7. A column that fails primarily due to direct stress is called

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

9. If the length of a simply supported beam carrying a concentrated load at the center is doubled, the deflection at the center will become

10. *As per the elastic theory of design, the factor of safety is the ratio of

11. Find the maximum SF induced in S.S 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

12. *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

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

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

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

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

17. The slenderness ratio of a vertical column of a square section of 2.5 cm sides and an effective length of 1.75 m is

18. The limit of proportionality depends upon

19. If y is the deflection of the beam, then shear force is

20. *As the elastic limit reaches, tensile strain

21. *Which of the following gives Modulus of Elasticity

22. *The inclined member carrying compressive load in the case of frames and trusses is

23. *A cable subjected to U.D.L. over its entire span assumes a shape of

24. *The compression test is commonly used for testing

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

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

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

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

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

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

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

32. The rate of change of shear force is called

33. Shear strain is defined as

34. The number of points of contraflexture in a simply supported beam carrying udl is

35. The property of material by which it can be beaten or rolled into plates is called

36. *The ratio of change in volume to the original volume is called:

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

38. An isotropic material has

39. *The total time of collision and restitution of two bodies is called

40. *A simply supported beam as shown in the fig. carries 10 t of load. What will be the reaction at point B ?

41. A beam of uniform strength will have at every cross-section the same

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

43. A long vertical member subjected to an axial compressive load is called

44. If a cantilever beam carries a uniformly distributed load over its entire length, then the shape of the shear force diagram and bending moment diagram respectively are

45. In a continuous beam, the point where bending moment changes sign is called

46. At the point of application of concentrated load on a beam, there is

47. The diagram showing the variation of BM along the span of the beam is called

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

49. *Determinate beam can be analyzed with the help of

50. *The amount of shear force at the maximum bending moment