Mechanics of Materials & Structures Online Test – Paper 3

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

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

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

4. Load carrying capacity of fixed beam is

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

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

7. The value of buckling load is ... than the crushing load in the case of a long column

8. The impact tests are used to determine

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

10. Point of contraflexure is a point where bending moment

11. Centrifugal force acts at a curve

12. Longitudinal cracks observed in timber beams are due to

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

14. 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

15. *A truss is completely analyzed, when

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

17. The zone between the elastic limit and proportional limit on the elastic curve of an elastic material is known as

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

19. The moment of inertia of a rectangular (Bx D) section about its base is

20. Find the maximum SF induced in S.S 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

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

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

23. *The variation of the bending moment in the segment of a beam where the load is uniformly distributed is

24. The strain energy stored by a member when strained within the elastic limit is known as

25. A brittle material will

26. If a constant section is subjected to a uniform/ pure bending moment throughout, its length bends to

27. A body having similar properties throughout

28. The phenomenon of slow growth of strain under steady tensile stress, i.e., increasing with time, is called

29. The crippling load for column of length 1, with one end fixed and the other end free is

30. *Thrust is induced in the case of

31. *Maximum bending moment occurs where

32. If all the dimensions of a bar are increased in the proportion n:1, the proportion with which the maximum stress produced in the prismatic bar by its own weight will increase in the ratio

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

34. Permanent set is

35. *Load required to produce unit deflection is called

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

37. 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)

38. *Fatigue is the failure of a material under:

39. *Which of the following is dimensionless?

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

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

42. A perfectly elastic body is

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

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

45. The maximum deflection of a simply supported beam subjected to a uniformly distributed load (w) over the span is

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

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

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

49. Shear force diagram for a cantilever carrying a UDL over its whole length is

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