Mechanics of Materials & Structures Online Test – Paper 3

1. *The shear force and bending moment are related by

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

3. The limit of proportionality depends upon

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

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

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

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

8. An isotropic material has

9. A Prismatic bar when subjected to pure bending assumes the shape of

10. *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:

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

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

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

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

15. *When the equal and opposite forces are applied to a body, tending to elongate it, then the stress produced is called

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

17. For keeping the stress wholly permissible, the load may be applied to a circular column anywhere within a concentric circle of diameter

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

19. The moment of inertia of a square section is given by

20. In rectangular column having cross section b X h, the core is

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

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

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

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

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

26. *Normal strain is defined as

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

28. *Proof resilience is the greatest stored energy at

29. The point of contraflexure occurs in a beam

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

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

32. The relation between deflection (y) and bending moment (M) is

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

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

35. 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)

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

37. *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

38. *Which of the following gives Modulus of Elasticity

39. In simple bending theory, the assumption that a plane section before bending remains plane after bending implies that

40. 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

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

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

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

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

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

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

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

48. 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)

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

50. The value of Poisson's ratio always remains