Mechanics of Materials & Structures Online Test – Paper 3

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

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

3. The relation between deflection (y) and bending moment (M) is

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

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

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

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

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

9. 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

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

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

12. The moment of inertia of a triangular section b x h about the c-g is

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

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

15. Point of contraflexure is a point where bending moment

16. *The maximum bending moment in a simply supported beam UDL is applied

17. *The product EI is called

18. *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

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

20. Buckling load for a given column depends upon

21. *A truss is completely analyzed, when

22. The shear force on a beam and the displacement are related by

23. The number of reaction components at a hinge on rollers support is

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

25. *Tensile internal force tends to:

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

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

28. A perfectly elastic body is

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

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

31. The maximum bending moment caused by a large number of equally spaced identical loads on a simply supported beam is (W = wL)

32. The section modulus of a rectangular section is proportional to

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

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

35. *The ratio of change in volume to the original volume is called:

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

37. 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

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

39. The shear center in the case of a T-beam section is

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

41. A cantilever beam is one which is:

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

43. The value of Poisson's ratio always remains

44. *The critical bending moment caused in a fixed end beam loaded with a uniformly distributed load (W = wL) throughout is

45. If magnitude and direction of a load does not change with respect to time, this type of load is called

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

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

48. *Toughness is

49. *Which of the following is dimensionless?

50. Along the neutral axis of a simply supported beam