Mechanics of Materials & Structures Online Test – Paper 3

1. *In a simply supported beam with span (L) having a triangular load with its intensity 0 at both ends and W at center. The maximum BM will be

2. *Stress may be defined as force

3. Point of contraflexure is a point where bending moment

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

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

6. Which of the following is a relatively ductile material?

7. 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)

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

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

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

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

12. *The rate of change of shear force is called

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

14. In the case of an H section, the maximum shear stress will occur at

15. The beam strongest in flexure will have the maximum

16. The shear center may be defined as

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

18. The number of reaction components at a hinge on rollers support is

19. The difference between BM values at any two sections will be equal to

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

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

22. Which of the following gives Modulus of Rigidity

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

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

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

26. *Dead load of a member is the

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

28. *A cable subjected to U.D.L. over its entire span assumes a shape of

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

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

31. *Thrust is induced in the case of

32. *The velocity of a moving body is:

33. *As per the elastic theory of design, the factor of safety is the ratio of

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

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

36. Load carrying capacity of fixed beam is

37. *The compression test is commonly used for testing

38. *Which of the following is dimensionless?

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

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

41. The square root of the ratio of moment of inertia and cross-section area of the member is known as

42. Buckling load for a given column depends upon

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

44. The maximum bending moment caused by a large number of equally spaced identical loads on a simply supported beam is (W = wL)

45. 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)

46. *A beam is said to be loaded in pure bending when

47. Find the value of thrust, if the member (beam) is subjected to an inclined force having a magnitude of 5 kN and an inclination with the vertical of 30°

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

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

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