Mechanics of Materials & Structures Online Test – Paper 3

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

2. *Load required to produce unit deflection is called

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

4. *A member which does not regain its original shape after the load producing deformation is removed, is said to be:

5. The ratio of moment of inertia of a square section to that of a circular section for a given depth is given by

6. Which of the following gives Modulus of Rigidity

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

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

9. A member that is subjected to reversible tensile or compressible stress may fail at a stress lower than the ultimate stress of the material. The property of the metal is called

10. *When the equal and opposite forces are applied to a body, tending to elongate it, then the stress produced is called

11. For a beam of uniform strength if its depth is maintained constant then its width will vary in proportion to

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

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

14. *The simple bending equation is

15. *Tensile internal force tends to:

16. Which of the following gives Poisson's ratio?

17. *Hooke's law holds good up to:

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

19. *The ratio of the intensity of stress in a case of a suddenly loaded to that of gradually applied load is

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

21. 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)

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

23. *The maximum BM produced in a simply supported beam having a span of 4 m and subjected to a UDL of 10 kN/m

24. Find the maximum BM induced in a cantilever beam subjected to a point load of 10 KN and a length of the beam is 10 m. The load is located at a distance of 3 m from the free end:-

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

26. *The product EI is called

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

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

29. Load carrying capacity of fixed beam is

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

31. *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

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

33. If a cantilever beam carries a uniformly distributed load over its entire length, then the shape of the shear force diagram and bending moment diagram respectively are

34. The brittle materials have low toughness because they

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

36. 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

37. 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)

38. If the length of a simply supported beam carrying a concentrated load at the center is doubled, the deflection at the center will become

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

40. *The phenomenon of decreased resistance of material due to the reversal of stress is called

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

42. A cantilever beam is one which is:

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

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

45. Centrifugal force acts at a curve

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

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

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

49. 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

50. For a column of given material, the Rankine's constant depends on