Mechanics Of Materials & Structures Online Test

Created by

Vikash chaudhary

This is a FREE online test. Beware of scammers who ask for money to attend this test.

Get fresh, new questions in each attempt.

Total Questions: 50
Time Allotted: 50 minutes
Passing Score: 70%
Randomization: Yes
Certificate: Yes
Do not refresh the page!
👍 All the best!

1 / 50

1. In simple bending theory, the assumption that a plane section before bending remains plane after bending implies that

a) stress is proportional to strain at all sections

b) strain is proportional to the distance from the neutral axis

c) stress is uniform in the cross-section

d) none of the above

2 / 50

2. *The velocity of a moving body is:

a) A vector quantity

b) A scalar quantity

c) A constant quantity

d) None of the above

3 / 50

3. *A truss is completely analyzed, when

a) the direct stress in all the members are found

b) all the external reaction components are determined

c) the equilibrium is satisfied

d) none of the above

4 / 50

4. A simply supported beam of length I carries a load varying uniformly from zero at the left end to the maximum at the right end. The maximum bending moment occurs at a distance of

a) 1/√3 from the left end

b) 1/3 from left end

c) 1/√3 from the right end

d) 1/3 from the right end

5 / 50

5. The slope of the curve of B.M. diagram at any section will be equal to

a) the slope of loading at that section

b) the slope of shear force diagram at that section

c) the ordinate of shear force diagram at that section

d) the area of shear force diagram starting from any one end

6 / 50

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

a) P = π^2EI/4l^2

b) P= π^2EI/l^2

c) P= 4π^2EI/l^2

d) P= π^2EI/l

7 / 50

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

a) circular arc

b) parabolic arc

c) catenary

d) all of the above

8 / 50

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

a) rectangular

b) parabolic

c) triangular

d) all of the above

9 / 50

9. *Compression members always tend to buckle in the direction of the

a) parallel to the axis of the load

b) perpendicular to the axis of the load

c) least radius of gyration

d) least cross-section

10 / 50

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

a) axial loading

b) vertical loading

c) horizontal loading

d) none of these

11 / 50

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

a) the area of bending moment between the two sections

b) the difference between the slopes of the curve of the loading diagram at two sections

c) the ordinate of shear force diagram at one section plus the slope of the loading diagram multiplied by the distance between two sections

d) the area of the loading diagram between those two sections

12 / 50

12. *The law "Stress is proportional to strain within certain limits" is formulated by

a) Thomas Youngs

b) Poisson

c) Mohr

d) Robert Hook

13 / 50

13. Which of the following end conditions permits the displacement in any direction and also rotation

a) fixed end

b) hinge end

c) free end

d) roller end

14 / 50

14. In a beam, the neutral plane

a) may be at its centre

b) passes through the c.g. of the area of c/s

c) does not change during deformation

d) none of the above

15 / 50

15. *Normal strain is defined as

a) rate of change of length

b) strain that normally occurs

c) strain that is normal to shear strain

d) deformation normal to the force

16 / 50

16. *The total time of collision and restitution of two bodies is called

a) time of collision

b) period of collision

c) period of impact

d) all the above

17 / 50

17. *A tie is a member which

a) is subjected axial compression only

b) is subjected axial tension only

c) is subjected moment tension only

d) is subjected two equal and opposite forces.

18 / 50

18. *The stress at which the extension of a material takes place more quickly as compared to the increase in load is called

a) breaking point

b) plastic point

c) yielding point

d) elastic point

19 / 50

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

a) does not act

b) away from the center of the path

c) towards the center of the path

d) all of the above

20 / 50

20. The number of points of contraflexture in a simply supported beam carrying udl is

a) 1

b) 2

c) 3

21 / 50

21. The variation of the bending moment in the segment of a beam where no external load is present is

a) linear

b) parabolic

c) cubic

d) rectangular

22 / 50

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

a) BD^3/12

b) DB^3/12

c) BD^3/3

d) DB^3/3

23 / 50

23. An isotropic material has

a) elastic mass

b) homogeneous mass

c) elastoplastic mass

d) none of the above

24 / 50

24. Bending moment diagram of simply supported beam with a point load at the centre of the span is

a) parabola

b) triangular

c) rectangle

d) diagonal

25 / 50

25. Find the bending moment at the center and also find the maximum bending moment

a) 10 kN-m, 12 kN-m

b) 15 kN-m, 10 kN-m

c) 20 kN-m, 12 kN-m

d) 10 kN-m, 15 kN-m

26 / 50

26. The ratio of moment of inertia of a square section to that of a circular section for a given depth is given by

a) <1

b) >1

c) 1

d) none of the above

27 / 50

27. The beam strongest in flexure will have the maximum

a) moment of inertia

b) section modulus

c) area of cross-section

d) none of the above

28 / 50

28. The diagram showing the variation of BM along the span of the beam is called

a) BMD

b) SFD

c) thrust diagram

d) all of the above

29 / 50

29. In a continuous beam, the point where bending moment changes sign is called

a) point of inflection

b) point of virtual hinge

c) point of contraflexure

d) all of the above

30 / 50

30. Which of the following gives Modulus of Rigidity

a) the ratio of linear stress to linear strain

b) the ratio of shear stress to shear strain

c) the ratio of lateral strain to longitudinal strain

d) the ratio of the normal stress

31 / 50

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

a) maximum

b) zero

c) minimum

d) no relation

32 / 50

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

a) the square root of the moment of inertia

b) the square root of the inverse of the area

c) the square root of the moment of inertia divided by the area of the section

d) none of the above

33 / 50

33. Longitudinal cracks observed in timber beams are due to

a) high bending stresses

b) application of concentrated loads over the beam

c) shear failure between the layers

d) timber not being in compression

34 / 50

34. The region of c/s of a column in which compressive load may be applied without producing tensile load is known as

a) core

b) more

c) compression area

d) tension area

35 / 50

35. A Prismatic bar when subjected to pure bending assumes the shape of

a) catenary

b) parabola

c) cubic parabola

d) arc of a circle

36 / 50

36. *Which of the following gives Modulus of Elasticity

a) the ratio of linear stress to linear strain

b) the ratio of shear stress to shear strain

c) the ratio of lateral strain to longitudinal strain

d) the ratio of the normal stress

37 / 50

37. A brittle material has

a) no plastic zone

b) no inelastic zone

c) a very little plastic zone

d) a large plastic zone

38 / 50

38. *The tension in a cable supporting a lift

a) is more when the lift is moving downwards

b) is less when the lift is moving upwards

c) Remains constant whether it moves downwards or upwards

d) is less when the lift is moving downwards

39 / 50

39. The bending moment in a cable carrying a system of loads will be

a) zero at all point

b) minimum at the center

c) maximum at the center

d) none of the above

40 / 50

40. The moment of inertia of a triangular section b x h about the base is

a) bh^3/12

b) bh^3/18

c) bh^3/36

d) all of the above

41 / 50

41. The effective length of a column if both ends are hinged

a) L

b) 0.5L

c) 2L

d) 4L

42 / 50

42. *In a simply supported beam with span (L) having a triangular load with its intensity 0 at both ends and W at center. The maximum BM will be

a) WL/2

b) WL/2

c) WL^2/12

d) WL/9

43 / 50

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

a) rectangular section

b) circular section

c) I-section

d) T-section

44 / 50

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

a) at one place

b) at two places

c) at three places

d) none of the above

45 / 50

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

a) point load of center

b) uniformly distributed load throughout the span

c) triangular load with maximum intensity at the center

d) all of the above

46 / 50

46. A body having similar properties throughout

a) homogeneous

b) isomorphic

c) isotropic

d) anisotropy

47 / 50

47. *The amount of shear force at the maximum bending moment

a) all of the above

b) minimum

c) medium

d) maximum

48 / 50

48. Which one is correct if the deflection of a beam is y

a) θ = dy/dx

b) dθ/dx = d²y/dx²

c) M = EI/R

d) all of the above

49 / 50

49. If the stress produced by a prismatic bar is equal to the working stress, the area of the cross-section of the prismatic bar becomes

a) zero

b) infinite

c) maximum

d) minimum

50 / 50

50. The bending moment diagram for a cantilever beam subjected to a moment at the end of the beam would be

a) rectangle

b) triangle

c) parabola

d) cubic parabola

Please provide accurate information so we can send your Achievement Certificate by mail.

NameEmailPhone Number

Your score is

Please provide your feedback.

Thank you for your valuable feedback.

Buy Mechanics of Materials & Structures MCQ PDF for Offline Study

Mechanics of Materials & Structures Online Test – Paper 3

Please provide accurate information so we can send your Achievement Certificate by mail.

Related MCQs