Mechanics of Materials & Structures Online Test – Paper 3

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

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

3. *Centre of gravity of a semi-circle is... above the base AB (Dia.)

4. *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:

5. The impact tests are used to determine

6. *The law which states that within elastic limits strain produced is proportional to stress producing it is known as:

7. *The forces which meet at one point, but their lines of action do not lie in a plane, are called:

8. *Which of the following is dimensionless?

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

10. 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

11. *A tie is a member which

12. *The tension in a cable supporting a lift

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

14. 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

15. *The maximum deflection of a simply supported beam subjected to a concentrated load (W) at the midpoint is

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

17. *If a beam is loaded transversely, the maximum compressive stress develops on

18. According to Hook's law, which one is correct?

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

20. The variation of the bending moment in the segment of a beam where no external load is present is

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

22. Rate of change of bending moment is equal to

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

24. *Young's modulus is the ratio of

25. The maximum bending moment in a simply supported beam loaded with a UDL of w/m having span l is

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

27. *The shear flow in a section can be defined as

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

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

31. *A point where SF is zero, BM is

32. *Strut is a

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

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

35. In a simply supported beam with span, L subjected to a point load, W at the center. Find the maximum bending moment induced in the beam

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

37. If a material has identical properties in all directions, it is said to be

38. A perfectly elastic body is

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

40. The maximum deflection of a simply supported beam subjected to a uniformly distributed load (w) over the span is

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

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

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. A brittle material will

45. 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

46. The section modulus of a circular section about an axis through its C.G. is

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

48. *The velocity of a moving body is:

49. *Maximum bending moment occurs where

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