Mechanics of Materials & Structures Online Test – Paper 3

1. *A simply supported beam as shown in the fig. carries 10 t of load. What will be the reaction at point B ?

2. *The product EI is called

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

4. *Toughness is

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

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

7. *Find the maximum bending moment in a simply supported beam loaded with a UDL of 2 t/m having a span of 4m

8. Load carrying capacity of fixed beam is

9. *Mathematically, strain may be defined as

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

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

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

13. A shear force diagram of a simply supported beam shows constant shear force throughout the span. It is subjected to

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

15. *Maximum bending moment occurs where

16. If magnitude and direction of a load does not change with respect to time, this type of load is called

17. A section of a beam is said to be in pure bending if it is subjected to

18. The brittle materials have low toughness because they

19. The impact tests are used to determine

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

21. The property of material by which it can be beaten or rolled into plates is called

22. *A beam is said to be loaded in pure bending when

23. A cantilever beam is the one which is supported with

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

25. *A truss is completely analyzed, when

26. The beam strongest in flexure will have the maximum

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

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

29. *The critical bending moment caused in a fixed end beam loaded with a uniformly distributed load (W = wL) throughout is

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

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

32. The shear force on a beam is proportional to

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

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

35. *As per the elastic theory of design, the factor of safety is the ratio of

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

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

38. The c.g. of a semi-circular arc is

39. For a column, with both ends fixed, the crippling load will be equal to

40. A brittle material will

41. *Proof resilience is the greatest stored energy at

42. 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

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

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

45. Longitudinal cracks observed in timber beams are due to

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

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

48. Point of contraflexure is a point where bending moment

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

50. *Thrust is induced in the case of