Mechanics of Materials & Structures Online Test – Paper 3

1. An orthotropic material has

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

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

4. *Centrifugal force is given by

5. Rate of change of bending moment is equal to

6. A viscoelastic material

7. *Which of the following gives Bulk Modulus?

8. *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

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

10. *Compression members always tend to buckle in the direction of the

11. If y is the deflection of the beam, then shear force is

12. The maximum bending moment in a simply supported beam loaded with a UDL of w/m having span l is

13. The number of reaction components at a hinged end of a general loading is

14. The value of Poisson's ratio always remains

15. The shear center may be defined as

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

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

18. *"If a rod is simultaneously pulled at both of its ends, it will be a case of:

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

20. 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

21. A brittle material will

22. Normally, the numerical value of Poisson's is

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

24. In a beam where shear force is maximum, the bending moment will be

25. *The compression test is commonly used for testing

26. In a beam, the neutral plane

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

28. Point of contraflexure is a point where bending moment

29. *Centre of gravity of a semi-circle is... above the base AB (Dia.)

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

31. *Dead load of a member is the

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

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

34. *The simple bending equation is

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

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

37. *Stress may be defined as force

38. What is tenacity?

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

40. The maximum bending moment caused by a moment M applied at a distance 'a' from one end on a simply supported beam is.... (where L=span, a>L/2)

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

42. A perfectly elastic body is

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

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

45. *In the case of a fixed beam loaded at a point at its center, the number of points at which BM is zero

46. The ratio of the effective length of a column and the minimum radius of gyration of its cross-sectional area is known as

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

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

49. *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:

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