Mechanics of Materials & Structures Online Test – Paper 3

1. How does Young's Modulus vary with an increase in temperature?

2. The variation of the bending moment in the segment of a beam where no external load is present is

3. *The forces which meet at one point, but their lines of action do not lie in a plane, are called:

4. *The compression test is commonly used for testing

5. Along the neutral axis of a simply supported beam

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

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

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

9. *Proof resilience is the greatest stored energy at

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

11. Which of the following is a relatively ductile material?

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

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

14. *Stress may be defined as force

15. If the Poisson's ratio of a material is 0.25, the ratio of Modulus of Rigidity to the Young's Modulus is

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

17. *Mathematically, strain may be defined as

18. *The total time of collision and restitution of two bodies is called

19. In the case of an H section, the maximum shear stress will occur at

20. A viscoelastic material

21. *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

22. 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

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

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

25. *Load required to produce unit deflection is called

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

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

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

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

30. *The velocity of a moving body is:

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

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

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

34. *The relation between the radius of curvature (R), bending moment (M), and flexural rigidity (EI) is given by

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

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

37. *A beam is said to be of uniform strength if

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

39. *The shear force and bending moment are related by

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

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

42. *"A simply supported beam of span L carries a uniformly distributed load W. The maximum bending moment, M is:

43. Shear strain is defined as

44. Permanent set is

45. The shear center may be defined as

46. *Strut is a

47. The moment of inertia of a triangular section b x h about the base is

48. *In a simply supported beam with span (L) having a triangular load with its intensity 0 at both ends and W at center. The maximum BM will be

49. Identify the correct relationship that exists among the modulus of elasticity (E), modulus of rigidity (N), and bulk modulus (k) is

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