Mechanics of Materials & Structures Online Test – Paper 3

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

2. The maximum deflection of a beam occurs at

3. The diagram showing the variation of axial load along the span is called

4. Shear strain is defined as

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

6. A long vertical member subjected to an axial compressive load is called

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

8. The bending moment in a cable carrying a system of loads will be

9. The phenomenon of slow growth of strain under steady tensile stress, i.e., increasing with time, is called

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

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

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

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

14. Permanent set is

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

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

17. *A tie is a member which

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

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

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

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

22. *The compression test is commonly used for testing

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

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

25. *The S.I. unit of the modulus of elasticity is

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

27. Point of contraflexure is a point where bending moment

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

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

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

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

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

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

34. *Which of the following is dimensionless?

35. The stress in the member subjected to a force is

36. 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

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

38. *Strut is a

39. *The centre of gravity of a triangle is at the point where three

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

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

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

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

44. *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

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

46. In a simply supported beam with span, L subjected to a point load, W at the center. Find the maximum bending moment induced in the beam

47. Shear force diagram for a cantilever carrying a UDL over its whole length is

48. In the case of a simply supported beam subjected to UDL, the maximum shear force occurs at a point

49. *Maximum bending moment occurs where

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