CVE 204 CBT PRACTICE

1. A tensile test is performed on a round bar. After fracture, it has been found that the diameter remains approximately same at fracture. The material under test was

2. What will be the variation in BMD for the diagram? [Assume l = 2m].

3. The body will regain it is previous shape and size only when the deformation caused by the external forces, is within a certain limit. What is that limit?

4. If section modulus of a beam is increased the bending stress in the beam will:

5. Coloumb friction is the friction between

6. A sample of metal weighs 219 gms in air, 180 gms in water and 120 gms in an Unkonwn fluid. Then which statement is correct about the density of the metal?

7. Engineering strain of a mild steel sample is recorded as 0.100%. The true strain is

8. The property of a material by which it can be beaten or rolled into thin plates is called _______

9. The Y axis of centre of gravity of semicircular plate 1.32 m diameter from its base as shown in figure.

10. Given below diagram is ______ load.

11. Some structural members subjected to a long time sustained loads deform progressively with time especially at elevated temperatures. What is such a phenomenon called?

12. The weight of a body is due to

13. The materials which have the same elastic properties in all directions are called _________

14. A steel cube, with all faces free to deform, has Young’s modulus, E, Poisson’s ratio, ν, and coefficient of thermal expansion, α. The pressure (hydrostatic stress) developed within the cube, when it is subjected to a uniform increase in temperature, ΔT, is given by

15. The product of either force of couple with the arm of couple is called

16. Maximum energy that a given component can absorb without undergoing any permanent deformation upto elastic limit is known as:

17. The loading and unloading response of a metal is shown in the figure. The elastic and plastic strains corresponding to 200 MPa stress, respectively, are

18. If a part is constrained to move and heated, it will develop

19. The unit of force in S.I. units is ?

20. Which of the following is not the unit of distance?

21. If a piece of material neither expands nor contracts in volume when subjected to stresses, then the Poisson’s ratio must be

22. What the number that measures an object’s resistance to being deformed elastically when stress is applied to it?

23. Units of U.D.L?

24. What kind of elastic materials are derived from a strain energy density function?

25. The dimension of strain is?

26. Shear force is unbalanced _____ to the left or right of the section.

27. What is the maximum shear force, when a cantilever beam is loaded with udl throughout?

28. Find the strain of a brass rod of length 250mm which is subjected to a tensile load of 50kN when the extension of rod is equal to 0.3mm?

29. The property by which a body returns to its original shape after removal of the force is called __________

30. Find the elongation of an steel rod of 100mm length when it is subjected to a tensile strain of 0.005?

31. Sagging, the bending moment occurs at the _____ of the beam.

32. A rod 200cm long is subjected to an axial pull due to which it elongates about 2mm. Calculate the amount of strain?

33. Determine the moment at fixed end.

34. The reactions at the rigid supports at A and B for the bar loaded as shown in the figure are respectively:

35. A member which does not regain its original shape after removal of the load producing deformation is said __________

36. Fixed beam is also known as __________

37. A beam which extends beyond it supports can be termed as __________

38. If a tangential force acts parallel to the surface of an object, the resulting internal force per unit area is known as __________.

39. A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times the linear strain in any of the three axes when?

40. _______ support develops support moment.

41. The lateral strain is ___________

42. For steel, the ultimate strength in shear as compared to ultimate strength in tension is:

43. As the elastic limit reaches, tensile strain __________

44. Continuous beams are _________

45. A rigid body is very slowly dropped on another body and a deflection δ_st occurs in the second body. If the rigid body be placed suddenly, the value of the impact factor will be:

46. Example for cantilever beam is ______

47. To avoid _____ stresses in beams, one end of the beam is placed on the rollers.

48. _______ is a horizontal structural member subjected to transverse loads perpendicular to its axis.

49. U.D.L stands for?

50. The room-temperature stress (σ) -strain (ϵ) curves of four materials P, Q, R, and S are shown in the figure below. The material that behaves as a rigid perfectly plastic material is

51. The total area under the stress-strain curve of a mild steel specimen tested up to failure under tension is a measure of its:

52. Find the reaction at simple support A?

53. Moving train is an example of ____ load.

54. A tensile test was conducted on a mild steel bar. The diameter and the gauge length of bat was 3cm and 20cm respectively. The extension was 0.21mm. What is the value to strain?

55. The diagram depicts _______ kind of beam.

56. What is the bending moment at end supports of a simply supported beam?

57. A tensile test was conducted on a steel bar. The gauge length of the bar was 10cm and the extension was 2mm. What will be the percentage elongation?

58. What is tensile strain?

59. What is tensile stress?

60. i) Strain is a fundamental behaviour of a material.
ii) Strain does not have a unit.