MCQOPTIONS
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MCQOPTIONS
This section includes 719 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The direction of the reaction at support of a truss shown in below figure will be |
| A. | East of North |
| B. | West of North |
| C. | East of South |
| D. | West of South |
| E. | Vertical. |
| Answer» B. West of North | |
| 2. |
The B.M. of a cantilever beam shown in below figure at , is |
| A. | zero |
| B. | 8 Tm |
| C. | 12 Tm |
| D. | 20 Tm. |
| Answer» B. 8 Tm | |
| 3. |
The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of for the material is 2100 tonnes/cm, the permissible maximum crippling load will be |
| A. | 1.288 tonnes |
| B. | 12.88 |
| C. | 128.8 tonnes |
| D. | 288.0 |
| E. | none of these. |
| Answer» C. 128.8 tonnes | |
| 4. |
A cantilever carrying a uniformly distributed load over its full length is propped at its free end such that it is at the level of the fixed end. The bending moment will be zero at its free end also at |
| A. | mid point of the cantilever |
| B. | fixed point of the cantilever |
| C. | 1/4th length from free end |
| D. | 3/4th length from free end |
| E. | half length from free end. |
| Answer» E. half length from free end. | |
| 5. |
The tensile force required to cause an elongation of 0.045 mm in a steel rod of 1000 mm length and 12 mm diameter, is (where = 2 x 10 kg/cm) |
| A. | 166 kg |
| B. | 102 kg |
| C. | 204 kg |
| D. | 74 kg |
| Answer» C. 204 kg | |
| 6. |
A simply supported wooden beam 150 cm long and having a cross section 16 cm x 24 cm carries a concentrated load, at the centre. If the permissible stress = 75 kg/cm and = 10 kg/cm the safe load is |
| A. | 3025 kg |
| B. | 3050 kg |
| C. | 3075 kg |
| D. | 3100 kg. |
| Answer» D. 3100 kg. | |
| 7. |
The nature of the stress in horizontal members of the truss shown in below figure may be |
| A. | compressive |
| B. | tensile |
| C. | shear |
| D. | zero |
| E. | all the above. |
| Answer» C. shear | |
| 8. |
A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be -times the linear strain in any of the three axes when |
| A. | = 1 |
| B. | = 2 |
| C. | = 3 |
| D. | = 4 |
| Answer» D. = 4 | |
| 9. |
For a given material Young's modulus is 200 GN/m and modulus of rigidity is 80 GN/m. The value of Poisson's ratio is |
| A. | 0.15 |
| B. | 0.20 |
| C. | 0.25 |
| D. | 0.30 |
| E. | 0.40 |
| Answer» D. 0.30 | |
| 10. |
The force in member of the truss shown in below figure, is |
| A. | 10 T tension |
| B. | 10 T compression |
| C. | zero |
| D. | 15 T compression. |
| Answer» C. zero | |
| 11. |
If a shaft is rotating revolutions per minute with an applied torque kg-m, the horse power being transmitted by the shaft, is |
| A. | none of these. |
| Answer» D. | |
| 12. |
If a rectangular beam measuring 10 x 18 x 400 cm carries a unformly distributed load such that the bending stress developed is 100 kg/cm. The intensity of the load per metre length, is |
| A. | 240 kg |
| B. | 250 kg |
| C. | 260 kg |
| D. | 270 kg |
| E. | 280 kg. |
| Answer» E. 280 kg. | |
| 13. |
A 8 metre long simply supported rectangular beam which carries a distributed load 45 kg/m. experiences a maximum fibre stress 160 kg/cm. If the moment of inertia of the beam is 640 cm, the overall depth of the beam is |
| A. | 10 cm |
| B. | 12 cm |
| C. | 15 cm |
| D. | 16 cm |
| E. | 18 cm. |
| Answer» B. 12 cm | |
| 14. |
A cast iron section beam is subjected to pure bending. For maximum compressive stress to be three times the maximum tensile stress, centre of gravity of the section from flange side is |
| A. | /4 |
| B. | /3 |
| C. | /2 |
| D. | 2/3 |
| E. | . |
| Answer» B. /3 | |
| 15. |
A rectangular beam 20 cm wide is subjected to a maximum shearing force of 10, 000 kg, the corresponding maximum shearing stress being 30 kg/cm. The depth of the beam is |
| A. | 15 cm |
| B. | 20 cm |
| C. | 25 cm |
| D. | 30 cm. |
| Answer» D. 30 cm. | |
| 16. |
A solid circular shaft of diameter is subjected to a torque . The maximum normal stress induced in the shaft, is |
| A. | zero |
| B. | none of these. |
| Answer» C. | |
| 17. |
In the cantilever truss as shown in below figure, the horizontal component of the reaction at , is |
| A. | 30 tonnes |
| B. | 60 tonnes |
| C. | 90 tonnes |
| D. | 120 tonnes |
| E. | 150 tonnes. |
| Answer» B. 60 tonnes | |
| 18. |
A beam of length is pinned at both ends and is subjected to a concentrated bending couple of moment at its centre. The maximum bending moment in the beam is |
| A. | /2 |
| B. | /3 |
| C. | /2 |
| Answer» B. /3 | |
| 19. |
The intensity of direct longitudinal stress in the cross-section at any point distant from the neutral axis, is proportional to |
| A. | . |
| Answer» B. | |
| 20. |
The B.M. diagram of the beam shown in below figure, is |
| A. | a rectangle |
| B. | a triangle |
| C. | a trapezium |
| D. | a parabola |
| E. | a circle. |
| Answer» B. a triangle | |
| 21. |
In the given below figure, the rivets with maximum stress, are : |
| A. | 1 and 2 |
| B. | 1 and 3 |
| C. | 3 and 4 |
| D. | 2 and 4 |
| Answer» E. | |
| 22. |
The maximum stress intensity due to a suddenly applied load is -times the stress intensity produced by the load of the same magnitude applied gradually. The value of is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| Answer» C. 3 | |
| 23. |
For the beam shown in below figure, the maximum positive bending moment is nearly equal to negative bending moment when is equal to |
| A. | 1.0 |
| B. | 0.7 |
| C. | 0.5 |
| D. | 0.35 |
| E. | . |
| Answer» E. . | |
| 24. |
If a solid shaft is subjected to a torque at its end such that maximum shear stress does not exceed the diameter of the shaft will be |
| A. | none of these. |
| Answer» D. | |
| 25. |
A shaft 9 m long is subjected to a torque 30 -m at a point 3 m distant from either end. The reactive torque at the nearer end will be |
| A. | 5 tonnes metre |
| B. | 10 tonnes metre |
| C. | 15 tonnes metre |
| D. | 20 tonnes metre |
| E. | none of these. |
| Answer» E. none of these. | |
| 26. |
An open-ended cylinder of radius and thickness is subjected to internal pressure . The Young's modulus for the material is and Poisson's ratio is μ. The longitudinal strain is |
| A. | zero |
| B. | none of these. |
| Answer» B. none of these. | |
| 27. |
The force in of the truss shown in below figure is : |
| A. | 500 kg compressive |
| B. | 500 kg tensile |
| C. | 1500 kg tensile |
| D. | 1500 kg compressive |
| E. | zero. |
| Answer» B. 500 kg tensile | |
| 28. |
The bending moment at for the structure shown in below figure, is |
| A. | zero |
| B. | 10 Tm |
| C. | 20 Tm |
| D. | 40 Tm. |
| Answer» B. 10 Tm | |
| 29. |
Euler's formula states that the buckling load for a column of length , both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are and respectively, is given by the relation |
| A. | = π |
| B. | . |
| Answer» B. . | |
| 30. |
For a cantilever with a uniformly distributed load over its entire length , the maximum bending moment is |
| A. | |
| B. | |
| C. | |
| D. | |
| Answer» C. | |
| 31. |
The maximum compressive stress at the top of a beam is 1600 kg/cm and the corresponding tensile stress at its bottom is 400 kg/cm . If the depth of the beam is 10 cm, the neutral axis from the top, is |
| A. | 2 cm |
| B. | 4 cm |
| C. | 6 cm |
| D. | 8 cm |
| E. | 10 cm. |
| Answer» E. 10 cm. | |
| 32. |
A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If = 2.1 x 10, the elongation of the rod will be |
| A. | 2.275 mm |
| B. | 0.2275 mm |
| C. | 0.02275 mm |
| D. | 2.02275 mm. |
| Answer» C. 0.02275 mm | |
| 33. |
The ratio of the moments of resistance of a solid circular shaft of diameter and a hollow shaft (external diameter and internal diameter ), is |
| A. | none of these. |
| Answer» B. | |
| 34. |
A cantilever carries is uniformly distributed load over its whole length and a force acts at its free end upward. The net deflection of the free end will be |
| A. | zero |
| B. | upward |
| C. | downward |
| D. | none of these. |
| Answer» C. downward | |
| 35. |
If a circular beam of diameter experiences a longitudinal strain and a lateral strain the volumetric strain is |
| A. | none of these. |
| Answer» C. | |
| 36. |
A rectangular bar of width and height is being used as a cantilever. The loading is in a plane parallel to the side . The section modulus is |
| A. | none of these. |
| Answer» D. | |
| 37. |
The ratio of strengths of solid to hollow shafts, both having outside diameter and hollow having inside diameter /2, in torsion, is |
| A. | 1/4 |
| B. | 1/2 |
| C. | 1/16 |
| D. | 15/16 |
| E. | 3/8 |
| Answer» E. 3/8 | |
| 38. |
Which one of the following statements is not correct_________________? |
| A. | the tangent of the angle of friction is equal to coefficient of friction |
| B. | the angle of repose is equal to angle of friction |
| C. | the tangent of the angle of repose is equal to coefficient of friction |
| D. | the sine of the angle of repose is equal to coefficient to friction |
| E. | none of the above |
| Answer» E. none of the above | |
| 39. |
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one________________? |
| A. | ellipse |
| B. | hyperbola |
| C. | parabola |
| D. | circle |
| E. | none of the above |
| Answer» C. parabola | |
| 40. |
Which of the following is the example of lever of first order________________? |
| A. | arm of man |
| B. | pair of scissors |
| C. | pair of clinical tongs |
| D. | all of the above |
| E. | none of the above |
| Answer» E. none of the above | |
| 41. |
Which of the following is not the unit of energy________________? |
| A. | kg m |
| B. | kcal |
| C. | wattr |
| D. | watt hours |
| E. | kg m x (m/sec)2 |
| Answer» D. watt hours | |
| 42. |
Which of the following is not a vector quantity_______________? |
| A. | weight |
| B. | velocity |
| C. | acceleration |
| D. | force |
| E. | moment |
| Answer» B. velocity | |
| 43. |
Which of the following is not a scalar quantity__________________? |
| A. | time |
| B. | mass |
| C. | volume |
| D. | density |
| E. | acceleration |
| Answer» F. | |
| 44. |
When trying to turn a key into a lock, following is applied___________________? |
| A. | coplanar force |
| B. | non-coplanar forces |
| C. | lever |
| D. | moment |
| E. | couple |
| Answer» F. | |
| 45. |
Two non-collinear parallel equal forces acting in opposite direction________________? |
| A. | balance each other |
| B. | constitute a moment |
| C. | constitute a couple |
| D. | constitute a moment of couple |
| E. | constitute a resultant couple |
| Answer» D. constitute a moment of couple | |
| 46. |
Two coplanar couples having equal and op-posite moments_________________? |
| A. | balance each other |
| B. | produce a couple and an unbalanced force |
| C. | are equivalent |
| D. | produce a moment of couple |
| E. | can not balance each other |
| Answer» F. | |
| 47. |
The weight of a body is due to____________________? |
| A. | centripetal force of earth |
| B. | gravitational pull exerted by the earth |
| C. | forces experienced by body in atmos-phere |
| D. | force of attraction experienced by par-ticles |
| E. | gravitational force of attraction towards the centre of the earth |
| Answer» F. | |
| 48. |
The units of moment of inertia of mass are_____________________? |
| A. | kg m2 |
| B. | m4 |
| C. | kg/m2 |
| D. | kg/m |
| E. | m2/kg |
| Answer» B. m4 | |
| 49. |
The units of moment of inertia of an area are_______________? |
| A. | kg m2 |
| B. | m4 |
| C. | kg/m2 |
| D. | m3 |
| E. | kg/m4 |
| Answer» C. kg/m2 | |
| 50. |
The unit of work or energy in S.I. units is________________? |
| A. | newton |
| B. | pascal |
| C. | kilogram meter |
| D. | watt |
| E. | joule |
| Answer» F. | |