Strength of Materials Mock test – 4 || Civil Engineering Mock tests Welcome to your Strength of Materials Mock test - 4 Take an exciting test in Strength of Materials You have only 20 mins to complete the test (26 Questions) Wish you all the best!!! Name Email 1. A member which does not regain its original shape after removed of load producing deformation is said A. plastic B. elastic C. rigid D. none of these.2. The shape of the bending moment diagram over the length of a beam, carrying a uniformly increasing load, is always A. linear B. parabolic C. cubical D. circular.3. The point of contraflexture occurs in A. cantilever beams only B. continuous beams only C. over hanging beams only D. all types of beams4. In a shaft rotated by a couple, the shear force varies A. from zero at the centre to a maximum at the circumference B. from minimum at the centre of maximum at the circumference C. from maximum at the centre to zero at the circumference D. equally throughout the section5. When a rectangular beam is loaded longitudinally, shear develops on A. bottom fibre B. top fibre C. middle fibre D. every-horizontal plane.6. A joint of a frame is subjected to three tensile force P, Q and R equally inclined to each other. If P is 10 tonnes, the other forces will be A. Q = 10 tonnes and R = zero B. R + 10 tonnes and Q = zero C. Q + R = 10 tonnes D. Q - R = zero E. Q and R each is equal to 10 tonnes.7. The moment diagram for a cantilever carrying a concentrated load at its free end, will be A. triangle B. rectangle C. parabola D. cubic parabola.8. The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference, is known as A. yield stress B. longitudinal stress C. hoop stress D. circumferential stress E. ultimate stress.9. If the stress in each cross-section of a pillar is equal to its working stress, it is called A. body of equal B. body of equal section C. body of equal strength D. none of these.10. A member which is subjected to reversible tensile or compressive stress may fail at a stress lower than the ultimate stress of the material. This property of metal, is called A. plasticity of the metal B. elasticity of the metal C. fatigue of the metal D. workability of the metal.11. In a shaft shear stress intensity at a point is not A. directly proportional to the distance from the axis B. inversely proportional to the distance from the axis C. inversely proportional to the polar moment of inertia D. directly proportional to the applied torque.12. In a simply supported beam (l + 2a) with equal overhangs (a) and carrying a uniformly distributed load over its entire length, B.M. at the middle point of the beam will be zero if A. l = 2a B. l = 4a C. l < 2a D. l > a E. l > 3a.13. Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to A. very long columns B. long columns C. short columns D. intermediate columns . E. all the above14. The ratio of the tensile stress developed in the wall of a boiler in the circumferential direction to the tensile stress in the axial direction, is A. 4 B. 3 C. 2 D. 115. In a square beam loaded longitudinally, shear develops A. on middle fibre along horizontal plane B. on lower fibre along horizontal plane C. on top fibre along vertical plane D. equally on each fibre along horizontal plane16. Along the neutral axis of a simply supported beam A. fibres do not undergo strain B. fibres undergo minimum strain C. fibres undergo maximum strain D. none of these.17. The tension coefficient of any member is A. force divided by the length B. tension divided by the length C. tension per unit area D. tension in the member.18. A diagram which shows the variations of the axial load for all sections of the span of a beam, is called A. bending moment diagram B. shear force diagram C. thrust diagram D. stress diagram19. If the width b and depth d of a beam simply supported with a central load are interchanged, the deflection at the centre of the beam will be changed in the ratio of A. b/d B. d/b C. (d/b)2 D. (b/d)220. The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is A. 1 B. 2 C. 3 D.1/221. Along the principal plan subjected to maximum principal stress A. maximum shear stress acts B. minimum shear stress acts C. no shear stress acts D. none of these.22. During a tensile test on a ductile material A. nominal stress at fracture is higher than the ultimate stress B. true stress at fracture is higher than the ultimate stress C. true stress at fracture is the same as the ultimate stress D. none of these.23. The stress at which extension of a material takes place more quickly as compared to the increase in load, is called A. elastic point B. plastic point C. breaking point D. yielding point.24. A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If E = 2.1 x 106, the elongation of the rod will be A. 2.275 mm B. 0.2275 mm C. 0.02275 mm D. 2.02275 mm.25. In a three hinged arch, the bending moment will be zero A. at right hinge only B. at left hinge only C. at both right and left hinges D. at all the three hinges.26. At either end of a plane frame, maximum number of possible bending moments, are A. one B. two C. three D. four E. zero.