Mechanics of Materials & Structures Online Test – Paper 3

1. *If a cantilever beam of 8m long has a uniformly distributed load of 2KN/m throughout the length and a 10KN point load at the center of the beam, find the moment at the center:

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

3. 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

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

5. The diagram showing the variation of axial load along the span is called

6. The maximum deflection of a beam occurs at

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

8. The slenderness ratio of a vertical column of square cross-section of 10 cm side and 500 cm long is

9. The maximum deflection in a cantilever beam carrying a concentrated load 'w' at the free end is (Where L is span of bean, W is total load and EI is flexural rigidity)

10. The crippling load for a column with both ends hinged is

11. The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length is

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

13. *Load required to produce unit deflection is called

14. *The property of a material by which a body returns to its original shape after removal of the force is called

15. *When the equal and opposite forces are applied to a body, tending to elongate it, then the stress produced is called

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

17. Point of contraflexure is a point where bending moment

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

19. *Stress may be defined as force

20. A perfectly elastic body is

21. *The law which states that within elastic limits strain produced is proportional to stress producing it is known as:

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

23. Which of the following gives Poisson's ratio?

24. If a cantilever beam carries a uniformly distributed load over its entire length, then the shape of the shear force diagram and bending moment diagram respectively are

25. 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

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

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

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

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

30. *The product EI is called

31. For a column of given material, the Rankine's constant depends on

32. The maximum bending moment caused by a moving load on a fixed-end beam occurs

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

34. *Thrust is induced in the case of

35. The radius of gyration of a rectangular section is not proportional to

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

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

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

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

40. *If a beam is loaded transversely, the maximum compressive stress develops on

41. The equivalent length of column fixed at one end and free at the other end is

42. 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)

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

44. The stress due to temperature change in a member depends on

45. *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

46. *Which of the following is dimensionless?

47. 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

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

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

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