Mechanics of Materials & Structures Online Test – Paper 3

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

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

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

4. A brittle material has

5. The point of contraflexure occurs in a beam

6. The safe value of stress below which the material will not fail when subjected to a reversal of stress is known as

7. For a beam of uniform strength if its depth is maintained constant then its width will vary in proportion to

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

9. The variation of the bending moment in the portion of the beam carrying a linearly varying load is

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

11. The moment of inertia of a rectangular (Bx D) section about its base is

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

13. *Load required to produce unit deflection is called

14. *"If a rod is simultaneously pulled at both of its ends, it will be a case of:

15. The actual breaking stress of a ductile material from a tension test will be

16. *Short column taking maximum load having equal section

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

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

19. *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:

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

21. The effective length of a column effectively held in position and restrained in direction at one end will be

22. *Mathematically, strain may be defined as

23. 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

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

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

26. *Tensile internal force tends to:

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

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

29. 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)

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

31. *The tension in a cable supporting a lift

32. In an I section, almost all the shear force is taken by

33. The property of material by which it can be drawn, due to tension, to a smaller section, is called

34. The shear center in the case of a T-beam section is

35. Which of the following gives Modulus of Rigidity

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

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

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

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

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

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

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

43. 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

44. The beam strongest in flexure will have the maximum

45. 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)

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

47. The slope of the curve of S.F. diagram at any section will be equal to

48. An orthotropic material has

49. Rate of change of bending moment is equal to

50. Find the maximum BM induced in a cantilever beam subjected to a point load of 10 KN and a length of the beam is 10 m. The load is located at a distance of 3 m from the free end:-