Mechanics of Materials & Structures Online Test – Paper 3

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

2. The zone between the elastic limit and proportional limit on the elastic curve of an elastic material is known as

3. *Dead load of a member is the

4. *The ratio of the largest load in a test to the original cross-sectional area of the piece is called:

5. What is tenacity?

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

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

8. The c.g. of a semi-circular arc is

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

10. The impact tests are used to determine

11. *The maximum bending moment in a simply supported beam UDL is applied

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

13. How does Young's Modulus vary with an increase in temperature?

14. *A truss is completely analyzed, when

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

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

17. A brittle material has

18. 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

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

20. *The stress at which the extension of a material takes place more quickly as compared to the increase in load is called

21. A member that is subjected to reversible tensile or compressible stress may fail at a stress lower than the ultimate stress of the material. The property of the metal is called

22. *The S.I. unit of the modulus of elasticity is

23. An isotropic material has

24. A beam fixed at both ends with a central load W in the middle will have zero bending moment

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

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

27. Point of contraflexure is a point where bending moment

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

29. A column that fails primarily due to buckling is known as

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

31. *Maximum deflection of a simply supported beam subjected to concentrated load (w) at the mid-point is

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

33. In a beam, the neutral plane

34. *A member which does not regain its original shape after the load producing deformation is removed, is said to be:

35. *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

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

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

38. If the value of Young's Modulus of elasticity for a material is zero, it implies that the material is

39. A body having similar properties throughout

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

41. The region of c/s of a column in which compressive load may be applied without producing tensile load is known as

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

43. In the case of a simply supported beam subjected to UDL, the maximum shear force occurs at a point

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

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

46. 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:-

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

48. Shear force diagram for a cantilever carrying a UDL over its whole length is

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

50. *The velocity of a moving body is: