Mechanics of Materials & Structures Online Test – Paper 3

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

2. 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

3. *Maximum deflection of a simply supported beam subjected to concentrated load (w) at the mid-point is

4. In a beam, the neutral plane

5. 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

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

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

8. *Proof resilience is the greatest stored energy at

9. *Normal strain is defined as

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

11. The reaction at end A of the beam shown is

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

13. *Moment of inertia of an object having rectangular section of 'b' as width and 'd' as depth is given by:

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

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

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

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

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

19. 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

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

21. *As the elastic limit reaches, tensile strain

22. *Maximum bending moment occurs where

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

24. *The ratio of the largest load in a test to the original cross-sectional area of the piece is called:

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

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

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

28. The property of material by which it can be beaten or rolled into plates is called

29. *The compression test is commonly used for testing

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

31. A Prismatic bar when subjected to pure bending assumes the shape of

32. An isotropic material has

33. A cantilever beam is one which is:

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

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

36. *A simply supported beam as shown in the fig. carries 10 t of load. What will be the reaction at point B ?

37. Longitudinal cracks observed in timber beams are due to

38. 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

39. Maximum bending moment occurs at the center if the simply supported beam is subjected to

40. A brittle material has

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

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

43. In a fixed beam, the points of contraflexure,

44. The region of c/s of a column in which compressive load may be applied without producing tensile load is known as

45. The ratio of the effective length of a column and the minimum radius of gyration of its cross-sectional area is known as

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

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

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

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

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