MCQOPTIONS
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MCQOPTIONS
This section includes 187 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 forces, which meet at one point, but their lines of action do not lie in a plane, are called |
| A. | Coplanar non-concurrent forces |
| B. | Non-coplanar concurrent forces |
| C. | Non-coplanar non-concurrent forces |
| D. | Intersecting forces |
| Answer» C. Non-coplanar non-concurrent forces | |
| 2. |
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 |
| Answer» B. Rectangle | |
| 3. |
If the shear force along a section of a beam is zero, the bending moment at the section is |
| A. | Zero |
| B. | Maximum |
| C. | Minimum |
| D. | Average of maximum-minimum |
| Answer» C. Minimum | |
| 4. |
A single force and a couple acting in the same plane upon a rigid body |
| A. | Balance each other |
| B. | Cannot balance each other |
| C. | Produce moment of a couple |
| D. | Are equivalent |
| Answer» C. Produce moment of a couple | |
| 5. |
The areas of cross-section of a square beam and a circular beam subjected to equal bending moments, are same. |
| A. | Circular beam is more economical |
| B. | Square beam is more economical |
| C. | Both the beams are equally strong |
| D. | Both the beams are equally economical |
| Answer» C. Both the beams are equally strong | |
| 6. |
A three-hinged arch is said to be: |
| A. | Statically determinate structure |
| B. | Statically indeterminate structure |
| C. | A bent beam |
| D. | None of these |
| Answer» B. Statically indeterminate structure | |
| 7. |
Frictional force encountered after commencement of motion is called |
| A. | Post friction |
| B. | Limiting friction |
| C. | Kinematic friction |
| D. | Dynamic friction |
| Answer» E. | |
| 8. |
A solid circular shaft of diameter d is subjected to a torque T. The maximum normal stress induced in the shaft, is |
| A. | Zero |
| B. | 16T/ 3 |
| C. | 32T/ 3 |
| D. | None of these |
| Answer» C. 32T/ 3 | |
| 9. |
The materials which have the same elastic properties in all directions, are called |
| A. | Isotropic |
| B. | Brittle |
| C. | Homogeneous |
| D. | Hard |
| Answer» B. Brittle | |
| 10. |
If a rigid body is in equilibrium under the action of three forces, then |
| A. | These forces are equal |
| B. | The lines of action of these forces meet in a point |
| C. | The lines of action of these forces are parallel |
| D. | Both (B) and (C) above |
| Answer» E. | |
| 11. |
For a beam having fixed ends, the unknown element of the reactions, is |
| A. | Horizontal components at either end |
| B. | Vertical components at either end |
| C. | Horizontal component at one end and vertical component at the other |
| D. | Horizontal and vertical components at both the ends |
| Answer» E. | |
| 12. |
According to Unwin’s formula, the diameter of a rivet of plate of thickness is: |
| A. | d = 6.05 t |
| B. | d = 1.5 t + 4 |
| C. | d = t |
| D. | d = t + 1.5 |
| Answer» B. d = 1.5 t + 4 | |
| 13. |
The section modulus of a rectangular section is proportional to |
| A. | Area of the section |
| B. | Square of the area of the section |
| C. | Product of the area and depth |
| D. | Product of the area and width |
| Answer» B. Square of the area of the section | |
| 14. |
For structural analysis of forces, the method refers to |
| A. | Moment-area-theorem |
| B. | Three-moment equation |
| C. | Maxwell’s reciprocal theorem |
| D. | None of these |
| Answer» B. Three-moment equation | |
| 15. |
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 atmosphere |
| D. | Gravitational force of attraction towards the centre of the earth |
| Answer» E. | |
| 16. |
Shear force for a cantilever carrying a uniformly distributed load over its length, is |
| A. | Triangle |
| B. | Rectangle |
| C. | Parabola |
| D. | Cubic parabola |
| Answer» C. Parabola | |
| 17. |
A simply supported beam carrying a uniformly distributed load over its whole span, is propped at the centre of the span so that the beam is held to the level of the end supports. The reaction of the prop will be |
| A. | Half the distributed load |
| B. | 3/8th the distributed load |
| C. | 5/8th the distributed load |
| D. | Distributed load |
| Answer» D. Distributed load | |
| 18. |
If three forces acting in different planes can be represented by a triangle, these will be in |
| A. | Non-equilibrium |
| B. | Partial equilibrium |
| C. | Full equilibrium |
| D. | None of the above |
| Answer» B. Partial equilibrium | |
| 19. |
The following assumption is not true in the theory of pure torsion |
| A. | The twist along the shaft is uniform |
| B. | The shaft is of uniform circular section throughout |
| C. | Cross-section of the shaft, which is plane before twist remains plane after twist |
| D. | All radii get twisted due to torsion |
| Answer» E. | |
| 20. |
A simply supported beam of span L carries a concentrated load W at its mid-span. The maximum bending moment M is |
| A. | WL/2 |
| B. | WL/4 |
| C. | WL/8 |
| D. | WL/12 |
| Answer» C. WL/8 | |
| 21. |
The possible loading in various members of framed structures are |
| A. | Compression or tension |
| B. | Buckling or shear |
| C. | Shear or tension |
| D. | All of the above |
| Answer» B. Buckling or shear | |
| 22. |
The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length, is |
| A. | 1/2 |
| B. | 1/3 |
| C. | 1/4 |
| D. | 1/5 |
| Answer» C. 1/4 | |
| 23. |
Which of the following is not the unit of power? |
| A. | kW (kilowatt) |
| B. | hp (horse power) |
| C. | kcal/sec |
| D. | kcal/kg sec |
| Answer» E. | |
| 24. |
The equivalent length of a column fixed at both ends, is |
| A. | 0.5 l |
| B. | 0.7 l |
| C. | l |
| D. | 1.5 l |
| Answer» B. 0.7 l | |
| 25. |
and are numbers of members and joints in a frame. It contains redundant members if |
| A. | n = 2j – 3 |
| B. | n = 3j – 2 |
| C. | n < 2j – 3 |
| D. | n > 2j – 3 |
| Answer» E. | |
| 26. |
The algebraic sum of moments of the forces forming couple about any point in their plane is |
| A. | Equal to the moment of the couple |
| B. | Constant |
| C. | Both of above are correct |
| D. | Both of above are wrong |
| Answer» B. Constant | |
| 27. |
Simple bending equation is |
| A. | M/I = R/E = F/Y |
| B. | I/M = E/R = Y/F |
| C. | M/I = E/R = F/Y |
| D. | M/I = R/E = Y/F |
| Answer» D. M/I = R/E = Y/F | |
| 28. |
While testing a cast iron beam (2.5 cm × 2.5 cm) in section and a metre long simply supported at the ends failed when a 100 kg weight is applied at the centre. The maximum stress induced is |
| A. | 960 kg/cm2 |
| B. | 980 kg/cm2 |
| C. | 1000 kg/cm2 |
| D. | 1200 kg/cm2 |
| Answer» B. 980 kg/cm2 | |
| 29. |
The product of either force of couple with the arm of the couple is called |
| A. | Resultant couple |
| B. | Moment of the forces |
| C. | Resulting couple |
| D. | Moment of the couple |
| Answer» E. | |
| 30. |
For a beam of uniform strength keeping its depth constant, the width will vary in proportion to |
| A. | Bending moment (M) |
| B. | All |
| C. | M2 |
| D. | None of these |
| Answer» B. All | |
| 31. |
The law which states, “Within elastic limits strain produced is proportional to the stress producing it”, is known as |
| A. | Bernoulli’s law |
| B. | Stress law |
| C. | Hooke’s law |
| D. | Poisson’s law |
| Answer» D. Poisson’s law | |
| 32. |
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of |
| A. | Forces |
| B. | Independence of forces |
| C. | Dependence of forces |
| D. | Resolution of forces |
| Answer» E. | |
| 33. |
The moment diagram for a cantilever whose free end is subjected to a bending moment, will be a |
| A. | Triangle |
| B. | Rectangle |
| C. | Parabola |
| D. | Cubic parabola |
| Answer» C. Parabola | |
| 34. |
In a beam, the neutral plane |
| A. | May be its centre |
| B. | Passes through the C.G. of the area of cross-section |
| C. | Does not change during deformation |
| D. | None of these |
| Answer» D. None of these | |
| 35. |
Which of the following is not the unit of energy? |
| A. | kg m |
| B. | kcal |
| C. | watt |
| D. | watt hours |
| Answer» D. watt hours | |
| 36. |
The maximum load to which a fillet joint of length can be subjected to, is |
| A. | 0.7 × S × fillet size × L |
| B. | 2 × S × fillet size × L |
| C. | Permissible shear stress × fillet size × L |
| D. | (S × fillet size × L)/3 |
| Answer» B. 2 × S × fillet size × L | |
| 37. |
The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always |
| A. | Linear |
| B. | Parabolic |
| C. | Cubical |
| D. | Circular |
| Answer» C. Cubical | |
| 38. |
Pick up wrong statement about friction force for dry surfaces. Friction force is |
| A. | Proportional to normal load between the surfaces |
| B. | Dependent on the materials of contact surface |
| C. | Proportional to velocity of sliding |
| D. | Independent of the area of contact surfaces |
| Answer» D. Independent of the area of contact surfaces | |
| 39. |
If a solid shaft is subjected to a torque at its end such that maximum shear stress does not exceed fs the diameter of the shaft will be |
| A. | 16T/ fs |
| B. | T/ fs) |
| C. | (16T/ fs) |
| D. | None of these |
| Answer» D. None of these | |
| 40. |
The weakest section of a diamond riveting, is the section which passes through |
| A. | First row |
| B. | Second row |
| C. | Central row |
| D. | One rivet hole of end row |
| Answer» B. Second row | |
| 41. |
Center of percussion is |
| A. | The point of C.G. |
| B. | The point of metacentre |
| C. | The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis |
| D. | Point of suspension |
| Answer» D. Point of suspension | |
| 42. |
The stiffness factor for a prismatic beam of length L and moment of inertia I, is |
| A. | IE/L |
| B. | 2EI/L |
| C. | 3EI/L |
| D. | 4EI/L |
| Answer» B. 2EI/L | |
| 43. |
In a three hinged arch, the third hinge is generally kept at |
| A. | Crown of the arch |
| B. | Midpoint of the crown and left support hinge |
| C. | Midpoint of the crown and right support hinge |
| D. | None of these |
| Answer» B. Midpoint of the crown and left support hinge | |
| 44. |
A force is completely defined when we specify |
| A. | Magnitude |
| B. | Direction |
| C. | Point of application |
| D. | All of the above |
| Answer» E. | |
| 45. |
The C.G. of a right circular solid cone of height h lies at the following distance from the base |
| A. | h/2 |
| B. | J/3 |
| C. | h/6 |
| D. | h/4 |
| Answer» E. | |
| 46. |
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 |
| Answer» D. Circular | |
| 47. |
An arch may be subjected to |
| A. | Shear and axial force |
| B. | Bending moment and shear force |
| C. | Bending moment and axial force |
| D. | Thrust, shear force and bending moment |
| Answer» E. | |
| 48. |
Coefficient of friction is the |
| A. | Angle between normal reaction and the resultant of normal reaction and the limiting friction |
| B. | Ratio of limiting friction and normal reaction |
| C. | The friction force acting when the body is just about to move |
| D. | The friction force acting when the body is in motion |
| Answer» C. The friction force acting when the body is just about to move | |
| 49. |
For the same height, the bottom width for no tension |
| A. | For triangular section is more than rectangular section |
| B. | For rectangular section is more than triangular section |
| C. | For triangular section is same as that of a rectangular section |
| D. | None of these |
| Answer» D. None of these | |
| 50. |
The range within which a load can be applied on a rectangular column, to avoid any tensile stress, is |
| A. | One-half of the base |
| B. | One-fifth of the base |
| C. | One-fourth of the base |
| D. | One-fifth of the base |
| Answer» C. One-fourth of the base | |