Mechanics of Materials & Structures Online Test – Paper 3

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

2. The section modulus of a circular section about an axis through its C.G. is

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

4. *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:

5. The beam strongest in flexure will have the maximum

6. *The bending moment at a section tends to bend or deflect the beam and internal stresses resist its bending. The resistance offered by the internal stress to the bending, is called:

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

8. 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

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

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

11. An orthotropic material has

12. 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

13. *A tie is a member which

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

15. If the value of Young's Modulus of elasticity for a material is zero, it implies that the material is

16. Moment of inertia of a rectangular beam bxd is

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

18. Find the slenderness ratio of the column of M.I. = 10000cm4, Area =100cm^2 & effective length =3.0m

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

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

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

22. 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

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

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

25. A perfectly elastic body is

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

27. 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

28. A column that fails primarily due to buckling is known as

29. *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

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

31. *Short column taking maximum load having equal section

32. The value of Poisson's ratio always remains

33. Find the maximum SF 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

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

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

36. *BM in a cantilever beam having a span of 1.8m and a uniformly distributed load of 4kg/m

37. *Maximum bending moment occurs where

38. *If a beam is loaded transversely, the maximum compressive stress develops on

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

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

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

42. 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)

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

44. *The velocity of a moving body is:

45. 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

46. The brittle materials have low toughness because they

47. *As the elastic limit reaches, tensile strain

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

49. Longitudinal cracks observed in timber beams are due to

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