Mechanics of Materials & Structures Online Test – Paper 3

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

2. The method of increasing fatigue resistance by overstressing the metal by successively increasing the loading is known as

3. The slope of the curve of B.M. diagram at any section will be equal to

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

5. *The magnitude of a shear force at a distance of L/4 from either end of a simply supported beam with load P applied at midspan is equal to:

6. *The simple bending equation is

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

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

9. The crippling load for column of length 1, with one end fixed and the other end free is

10. Find the maximum BM induced in a simply supported beam if the beam is subjected to a point load of 4 KN at the center of the beam and the span of the beam is 4 m

11. *The inclined member carrying compressive load in the case of frames and trusses is

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

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

14. *A truss is completely analyzed, when

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

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

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

18. A beam of uniform strength will have at every cross-section the same

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

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

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

22. The radius of gyration of a rectangular section is not proportional to

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

24. *Strut is a

25. The maximum bending moment caused by a moving load on a fixed-end beam occurs

26. Which of the following gives Modulus of Rigidity

27. *Which of the following is dimensionless?

28. The limit of proportionality depends upon

29. *A tie is a member which

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

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

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

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

34. "When a rectangular beam is loaded transversely the maximum compressive stress is developed on the :

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

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

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

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

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

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

41. *A beam is said to be of uniform strength if

42. A brittle material will

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

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

45. Along the neutral axis of a simply supported beam

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

47. *Dead load of a member is the

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

49. The moment of inertia of a triangular section b x h about the base is

50. What is tenacity?