Mechanics of Materials & Structures Online Test – Paper 3

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

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

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

4. In rectangular column having cross section b X h, the core is

5. The diagram showing the variation of BM along the span of the beam is called

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

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

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

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

10. An orthotropic material has

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

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

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

14. *"A simply supported beam of span L carries a uniformly distributed load W. The maximum bending moment, M is:

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

16. The bending moment diagram for a cantilever beam subjected to a moment at the end of the beam would be

17. Bending moment diagram of simply supported beam with a point load at the centre of the span is

18. *Find the maximum bending moment in a simply supported beam loaded with a UDL of 2 t/m having a span of 4m

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

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

21. *In the case of a fixed beam loaded at a point at its center, the number of points at which BM is zero

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

23. *As the elastic limit reaches, tensile strain

24. Which of the following gives Modulus of Rigidity

25. 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

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

27. The stress necessary to initiate yielding is considerably

28. Find the bending moment at the center and also find the maximum bending moment

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

31. If all the dimensions of a bar are increased in the proportion n:1, the proportion with which the maximum stress produced in the prismatic bar by its own weight will increase in the ratio

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

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

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

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

36. Shape of the bending moment diagram for a simply supported beam having a point load at the center is

37. *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:

38. *Load required to produce unit deflection is called

39. The moment of inertia of an area will be least with respect to

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

41. The safe value of stress below which the material will not fail when subjected to a reversal of stress is known as

42. 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

43. The property of material by which it can be drawn, due to tension, to a smaller section, is called

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

45. *The law "Stress is proportional to strain within certain limits" is formulated by

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

47. A cantilever beam of span 4m and carrying a point load of 10 kN located at 3m from the fixed end. Find the BM at the fixed and free end

48. *Which of the following sections is the most efficient in carrying bending moments

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

50. *The shear force in a concrete beam is assumed to act