Mechanics of Materials & Structures Online Test – Paper 3

1. A shear force diagram of a simply supported beam shows constant shear force throughout the span. It is subjected to

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

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

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

5. A perfectly elastic body is

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

7. 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

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

9. 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

10. Which of the following gives Modulus of Rigidity

11. Find the maximum SF 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

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

13. *The unit failure stress is taken as :

14. *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:

15. *The velocity of a moving body is:

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

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

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

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

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

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

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

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

24. A cantilever beam is the one which is supported with

25. *Which of the following gives Bulk Modulus?

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

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

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

29. 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)

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

31. 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

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

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

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

35. 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:-

36. What is strain energy?

37. *The simple bending equation is

38. *The variation of the bending moment in the segment of a beam where the load is uniformly distributed is

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

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

41. The stress due to temperature change in a member depends on

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

43. *Strut is a

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

45. *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

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

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

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

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

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