som viva questions in options

1. Strain energy is theA.energy stored in a body when strained within elastic limitsB.energy stored in a body when strained upto the breaking of a specimenC.maximum strain energy which can be stored in a bodyD.proof resilience per unit volume of a materialStrength Of Materials Viva Questions

2. A vertical column has two moments of inertia (i.e. Ixx and Iyy ). The column will tend to buckle in the direction of theA.axis of loadB.perpendicular to the axis of loadC.maximum moment of inertiaD.minimum moment of inertiaStrength Of Materials Viva Questions

3. The neutral axis of the cross-section a beam is that axis at which the bending stress isA.zero B.minimumC.maximum D.infinityStrength Of Materials Viva Questions

4. Euler's formula holds good only forA.short columnsB. long columnsC.both short and long columnsD.weak columnsStrength Of Materials Viva Questions

5. The object of caulking in a riveted joint is to make the jointA. free from corrosionB.stronger in tensionC.free from stressesD.leak-proof

6. A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induceA.no stressB.shear stressC.tensile stressD.compressive stressStrength Of Materials Viva Questions

7. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum normal stress will beA.400 MPaB.500 MPaC.900 MPaD.1400 MPaStrength Of Materials Viva Questions

8. Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft 'B' is 300 r.p.m. The shaft 'B' has the greater diameter.A.True B.FalseStrength Of Materials Viva Questions

9. A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pressure (p). The maximum tangential stress at the inner surface of the shell is

A.

B.

C.

D.

Strength Of Materials Viva Questions

10. The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.A.equal toB.one-halfC.twiceD.four timesStrength Of Materials Viva Questions

11.

For a beam, as shown in the below figure, the maximum deflection is .

A.True B.FalseStrength Of Materials Viva Questions

12. If the slenderness ratio for a column is 100, then it is said to be a __________ column.A.long B.mediumC.shortStrength Of Materials Viva Questions

13. A masonry dam may fail due toA. tension in the masonry of the dam and its baseB.overturning of the damC.crushing of masonry at the base of the damD.any one of the aboveStrength Of Materials Viva Questions

14. In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.A.equal toB.less thanC.more thanStrength Of Materials Viva Questions

15. When a body is subjected to two equal and opposite pushes, as a result of which the body tends to reduce its length, the stress and strain induced is compressive.


16. The bending moment at a point on a beam is the algebraic __________ of all the moments on either side of the point.A.sum B.differenceStrength Of Materials Viva Questions

17. The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)A.t B.2tC.4t D.8tStrength Of Materials Viva Questions

18. Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' isA.1/8 B.1/4C.1/2 D.2Strength Of Materials Viva Questions

19. The deformation per unit length is calledA.tensile stressB.compressive stressC.shear stressD.strainStrength Of Materials Viva Questions

20. A thin cylindrical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to volumetric strain is

A.

B.

C.

D.

21.

In the torsion equation the term J/R is calledA.shear modulusB.section modulusC.polar modulusD.none of theseStrength Of Materials Viva Questions

22. Strain resetters are used toA.measure shear strainB.measure linear strainC.measure volumetric strainD.relieve strainStrength Of Materials Viva Questions

23. The torque transmitted by a solid shaft of diameter (D) is (where τ = Maximum allowable shear stress)

A.x τ x D3

B.x τ x D3

C.x τ x D3

D.x τ x D3


24. When a rectangular beam is loaded transversely, the maximum compressive stress is developed on theA.top layerB.bottom layerC.neutral axisD.every cross-sectionStrength Of Materials Viva Questions

25. For a beam, as shown in the below figure, when the load W is applied in the centre of the beam, the maximum deflection is

A.

B.

C.

D.

26. The point of contraflexure is a point whereA.shear force changes signB.bending moment changes signC.shear force is maximumD.bending moment is maximumStrength Of Materials Viva Questions

27. The simply supported beam 'A' of length l carries a central point load W. Another beam 'B' is loaded with a uniformly distributed load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B isA.5/8 B.8/5C.5/4 D.4/5Strength Of Materials Viva Questions

28. The maximum stress produced in a bar of tapering section is at

A.smaller endB. larger endC.middleD.anywhereStrength Of Materials Viva Questions

29. The energy stored in a body when strained within elastic limit is known asA.resilienceB.proof resilienceC.strain energyD.impact energyStrength Of Materials Viva Questions

30. In compression test, the fracture in cast iron specimen would occur alongA.the axis of loadB.an oblique planeC.at right angles to the axis of specimenD.would not occurStrength Of Materials Viva Questions

31. The bending stress in a beam is __________ section modulus.A.directly proportional toB.inversely proportional toStrength Of Materials Viva Questions

32. When shear force at a point is zero, then bending moment is __________ at that point.A.zero B.minimumC.maximum D.infinityStrength Of Materials Viva Questions

33. The maximum bending moment for the beam shown in the below figure, lies at a distance of __________ from the end B.

A. l/2B. l/3

C.

D.


34. When a bar is cooled to - 5°C, it will developA.no stressB.shear stressC.tensile stressD.compressive stressStrength Of Materials Viva Questions

35. The limit of eccentricity is based upon no tension condition.


36. In order to know whether a column is long or short, we must know its slenderness ratio.A.True B.FalseStrength Of Materials Viva Questions

37. A composite shaft consisting of two stepped portions having spring constants k1 and k2 is held between two rigid supports at the ends. Its equivalent spring constant is

A.

B.

C.

D.k1k2


38. Resilience is theA.energy stored in a body when strained within elastic limitsB.energy stored in a body when strained upto the breaking of the specimenC.maximum strain energy which can be stored in a bodyD.none of the aboveStrength Of Materials Viva Questions

39. If the depth is kept constant for a beam of uniform strength, then its width will vary in proportional to (where M = Bending moment)A.MB.MC.M2

D.M3


40. A concentrated load is one whichA.acts at a point on a beamB.spreads non-uniformly over the whole length of a beamC.spreads uniformly over the whole length of a beamD.varies uniformly over the whole length of a beamStrength Of Materials Viva Questions

41. If the tearing efficiency of a riveted joint is 50%, then ratio of rivet hole diameter to the pitch of rivets isA.0.20 B.0.30C.0.50 D.0.60Strength Of Materials Viva Questions

42. The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and depth but width is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.A.sameB.doubleC.four timesD.six times


43. In a simple bending of beams, the stress in the beam variesA.linearly B.parabolicallyC.hyperbolically D.ellipticallyStrength Of Materials Viva Questions

44. A beam supported at its both ends is not a simply supported beam.A.True B.FalseStrength Of Materials Viva Questions

45. The stress at which the extension of the material takes place more quickly as compared to the increase in load, is calledA.elastic limitB.yield pointC.ultimate pointD.breaking pointStrength Of Materials Viva Questions

46. The strain energy stored in a solid circular shaft subjected to shear stress (τ) is (where C = Modulus of rigidity for the shaft material)

A.x Volume of shaft

B.x Volume of shaft

C.x Volume of shaft

D.x Volume of shaft


47. When two main plates are kept in alignment butting each other and riveted with cover plate on both sides of the main plates with two rows of rivets in each main plate, the joint is known as __________ double cover butt joint.A.single rivetedB.double rivetedStrength Of Materials Viva Questions

48. Whenever a material is loaded within elastic limit, stress is __________ strain.A.equal toB.directly proportional toC.inversely proportional toStrength Of Materials Viva Questions

49. A load which is spread over a beam in such a manner that it varies uniformly over the whole length of abeam is called uniformly __________ load.A.distributed B.varyingStrength Of Materials Viva Questions

50. Which of the following statement is correct?

A.The energy stored in a body, when strained within elastic limit is known as strain energy.

B.The maximum strain energy which can be stored in a body is termed as proof

resilience.C.The proof resilience per unit volume of a material is known as modulus of resilience.D.all of the aboveStrength Of Materials Viva Questions

som viva questions in options

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