Mechanics of Materials & Structures Online Test – Paper 3

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

2. *Centrifugal force is given by

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

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

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

6. Find the maximum SF induced in S.S 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

7. *A member with a cross section of a mm^2 is subjected to a force of P N. It is L mm long and of Young's Modulus, E N/mm^2. The strain will be

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

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

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

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

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

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

14. The maximum shear stress will always occur at

15. 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

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

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

18. Euler's formula for a column of length 1, with one end fixed and other hinged is

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

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

21. A beam simply supported at ends is subjected to load. The maximum bending moment is located where

22. *The shear flow in a section can be defined as

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

24. Permanent set is

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

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

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

28. The difference in ordinate of the shear force between any two sections is equal to the area under

29. *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:

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

31. If the elasticity of the material is zero then the material is said to be

32. *Mathematically, strain may be defined as

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

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

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

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

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

38. *A truss is completely analyzed, when

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

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

41. The effective length of a column if both ends are hinged

42. *The property of a material by which a body returns to its original shape after removal of the force is called

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

44. Centrifugal force acts away from the center of the path while centripetal force

45. The slope of the curve of S.F. diagram at any section will be equal to

46. 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

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

48. Which of the following materials will have the highest Young's Modulus?

49. The value of Poisson's ratio always remains

50. *If a cantilever beam of 8m long has a uniformly distributed load of 2KN/m throughout the length and a 10KN point load at the center of the beam, find the moment at the center: