Mechanics of Materials & Structures Online Test – Paper 3

1. Which one is correct if the deflection of a beam is y

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

3. Moment of inertia of a rectangular beam bxd is

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

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

6. *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

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

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

9. Maximum bending moment occurs at the center if the simply supported beam is subjected to

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

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

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

13. *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

14. *A point where SF is zero, BM is

15. An orthotropic material has

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

17. 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)

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

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

20. *Dead load of a member is the

21. Point of contraflexure is a point where bending moment

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

23. The moment of inertia of an area will be least with respect to

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

25. *The simple bending equation is

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

27. *Bending moment diagram of a simply supported beam having a uniformly distributed load is

28. An isotropic material has

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

30. *The stress at which the extension of a material takes place more quickly as compared to the increase in load is called

31. Which of the following materials will have the highest Young's Modulus?

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

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

34. The bending moment diagram for a cantilever beam subjected to a moment at the end of the beam would be

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

36. Find the value of thrust, if the member (beam) is subjected to an inclined force having a magnitude of 5 kN and an inclination with the vertical of 30°

37. *In a simply supported beam subjected to a point load at the center, the maximum bending moment occurs at

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

39. 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

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

41. The impact tests are used to determine

42. Rate of change of bending moment is equal to

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

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

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

46. The region of c/s of a column in which compressive load may be applied without producing tensile load is known as

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

48. The variation of the bending moment in the portion of the beam carrying a linearly varying load is

49. The difference between SF values at any two sections will be equal to

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