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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. *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: a) 8 KN-m b) 16 KN-m c) 32 KN-m d) 44 KN-m 2 / 50 2. *The compression test is commonly used for testing a) ductile materials b) rubber c) brittle materials 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. 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 5 / 50 5. The relation between deflection (y) and bending moment (M) is a) M = EI(dy/dx) b) M =-EI(d²y/dx²) c) M = EI(d²y/dx] d) none of the above 6 / 50 6. A beam of uniform strength will have at every cross-section the same a) deflection b) stiffness c) BM d) bending stress 7 / 50 7. *The maximum deflection of a simply supported beam subjected to a concentrated load (W) at the midpoint is a) WL^3 / 8EI b) WL^3 / 48EI c) 5WL^3 / 48EI d) none of the above 8 / 50 8. In the case of an H section, the maximum shear stress will occur at a) top fibers b) neutral axis c) bottom fibers d) at the junction of web and flanges 9 / 50 9. 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 10 / 50 10. *The Young's Modulus of elasticity is defined as the ratio of stress & strain within the a) plastic limit b) all of the above c) yield limit d) elastic limit 11 / 50 11. The point of contraflexure occurs in a beam a) cantilevers only b) simply supported only c) overhanging only d) all of the above 12 / 50 12. The difference between BM values at any two sections will be equal to a) the area of SF diagram between those two sections b) the area of loading diagram between the two sections c) the area of loading diagram d) the area of bending moment between the two sections 13 / 50 13. An orthotropic material has a) inelastic properties b) non-homogeneous properties c) the same properties in an orthogonal direction d) different properties in three perpendicular directions 14 / 50 14. 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 15 / 50 15. The slenderness ratio of a vertical column of a square section of 2.5 cm sides and an effective length of 1.75 m is a) 232 b) 242 c) 252 d) 262 16 / 50 16. Shear force diagram for a cantilever carrying a UDL over its whole length is a) rectangle b) triangle c) parabola d) cubic parabola 17 / 50 17. *The bending moment at a section tends to bend or deflect the beam and internal stresses resist its bending. The resistance offered by the internal stress to the bending, is called: a) compressive stress b) shear stress c) bending stress d) elastic modulus 18 / 50 18. The slenderness ratio of a vertical column of square cross-section of 10 cm side and 500 cm long is a) 117.2 b) 17.3 c) 173.2 d) 137.2 19 / 50 19. The strain energy stored by a member when strained within the elastic limit is known as a) resilience b) proof resilience c) potential strain d) none of the above 20 / 50 20. *Determinate beam can be analyzed with the help of a) two equations of statics b) three equations of statics c) four equations of statics d) five equations of statics 21 / 50 21. The section modulus of a circular section about an axis through its C.G. is a) πd^2/16 b) πd^3/32 c) πd^3/64 d) πd^2/64 22 / 50 22. *The velocity of a moving body is: a) A vector quantity b) A scalar quantity c) A constant quantity d) None of the above 23 / 50 23. *The law which states that within elastic limits strain produced is proportional to stress producing it is known as: a) Bernoulli's law b) yield stress c) Hooke's law d) Poisson's law 24 / 50 24. *The maximum bending moment caused by a moving load on a simply supported beam is a) at the support b) under the load c) at mid span d) none of the above 25 / 50 25. Euler's formula for a column of length 1, with one end fixed and other hinged is a) P= 2π^2EI/l^2 b) P = π^2EI/4l^2 c) P= 4π^2EI/l^2 d) none of the above 26 / 50 26. *As per the elastic theory of design, the factor of safety is the ratio of a) working stress to field stress b) yield stress to working stress c) ultimate stress to yield stress d) ultimate load to load at yield 27 / 50 27. An isotropic material has a) elastic mass b) homogeneous mass c) elastoplastic mass d) none of the above 28 / 50 28. 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 29 / 50 29. *The property of a material by which a body returns to its original shape after removal of the force is called a) plasticity b) elasticity c) ductility d) malleability 30 / 50 30. Centrifugal force acts at a curve a) along the center line b) towards the center c) away from the center d) all of the above 31 / 50 31. The effective length of a column effectively held in position and restrained in direction at one end will be a) 1l b) 1.5 l c) 2 l d) 3 l 32 / 50 32. If the Poisson's ratio of a material is 0.25, the ratio of Modulus of Rigidity to the Young's Modulus is a) 2 b) 0.4 c) 2.5 d) 4 33 / 50 33. 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 34 / 50 34. The brittle materials have low toughness because they a) have large plastic deformation before failure b) have small plastic deformation before failure c) have no plastic deformation before failure d) can absorb impact load also 35 / 50 35. 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 36 / 50 36. *The rate of change of shear force is called a) bending moment b) slope c) deflection d) intensity of load 37 / 50 37. Along the neutral axis of a simply supported beam a) fibers do not undergo strain b) fibers undergo very little strain c) the fibers are subjected to maximum stress d) none of the above 38 / 50 38. Shear strain is defined as a) change in the angle between planes at right angles b) distortion of fiber c) change in angle between two angles d) strain that normally occurs 39 / 50 39. *The phenomenon of decreased resistance of material due to the reversal of stress is called a) creep b) fatigue c) elasticity d) plasticity 40 / 50 40. Which of the following materials will have the highest Young's Modulus? a) brass b) timber c) mild steel d) copper 41 / 50 41. Point of contraflexure is a point where bending moment a) minimum b) maximum c) zero d) changes sign 42 / 50 42. 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 43 / 50 43. If α is the coefficient of linear expansion, T is the rise in temperature, then thermal stress is given by a) ETα b) ET/α c) Eα/T d) Tα/E 44 / 50 44. A viscoelastic material a) is an elastic material b) has a small plastic zone c) has a time-dependent stress-strain relation d) has a viscous surface 45 / 50 45. *A simply supported beam as shown in the fig. carries 10 t of load. What will be the reaction at point B ? a) 5t b) 4.5 t c) 4t d) 3 t 46 / 50 46. The effective length of a column if both ends are hinged a) L b) 0.5L c) 2L d) 4L 47 / 50 47. *Strut is a a) horizontal member b) vertical member c) inclined member d) compression member 48 / 50 48. The reaction at end A of the beam shown is a) 9 kN b) 3 kN c) 18 kN d) zero 49 / 50 49. *Proof resilience is the greatest stored energy at a) limit of proportionality b) elastic limit c) plastic limit d) yield point 50 / 50 50. Normally, the numerical value of Poisson's is a) 0.3 for steel b) 0.15 for concrete c) both (a) and (b) of the above d) none of the above Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score isShare your achievement! LinkedIn Facebook 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Buy Mechanics of Materials & Structures MCQ PDF for Offline Study