MCQOPTIONS
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MCQOPTIONS
This section includes 65 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Effect of a force on a body depends upon$? |
| A. | magnitude |
| B. | direction |
| C. | position or line of action |
| D. | all of the above |
| Answer» E. | |
| 52. |
If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either$? |
| A. | meet in a point |
| B. | be all parallel |
| C. | at least two of them must meet |
| D. | all the above are correct |
| Answer» E. | |
| 53. |
Center of percussion is$? |
| A. | the point of C.G. |
| B. | the point of metacentre |
| C. | the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis |
| D. | point of suspension |
| Answer» D. point of suspension | |
| 54. |
The unit of power in S.I. units is$? |
| A. | newton meter |
| B. | watt |
| C. | joule |
| D. | kilogram meter/sec. |
| Answer» C. joule | |
| 55. |
The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be |
| A. | r/2 |
| B. | 2r/3 |
| C. | r/A |
| D. | 3r/2 |
| Answer» E. | |
| 56. |
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span |
| A. | 2.5 cm |
| B. | 3.0 cm |
| C. | 4.0 cm |
| D. | 5.0 cm |
| Answer» D. 5.0 cm | |
| 57. |
Which of the following is not the unit of work, energy and heat ? |
| A. | kcal |
| B. | kg m |
| C. | kWhr |
| D. | hp |
| Answer» E. | |
| 58. |
A pair of smith’s tongs is an example of the lever of$ |
| A. | zeioth order |
| B. | first order |
| C. | second order |
| D. | third order |
| Answer» D. third order | |
| 59. |
D Alembert’s principle is used for$ |
| A. | reducing the problem of kinetics to equivalent statics problem |
| B. | determining stresses in the truss |
| C. | stability of floating bodies |
| D. | designing safe structures |
| Answer» B. determining stresses in the truss | |
| 60. |
The resultant of the following three couples 20 kg force, 0.5 m arm, $ ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be$ |
| A. | 20 kg, – ve sense |
| B. | 20 kg, + ve sense |
| C. | 10 kg, + ve sense |
| D. | 10 kg, – ve sense |
| Answer» B. 20 kg, + ve sense | |
| 61. |
According to Lami's theorem |
| A. | Three forces acting at a point will be in equilibrium |
| B. | Three forces acting at a point can be represented by a triangle, each side being proportional to force |
| C. | If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium |
| D. | If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two |
| Answer» E. | |
| 62. |
A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) |
| A. | 2n-3 |
| B. | n-l |
| C. | 2n-l |
| D. | n-2 |
| Answer» B. n-l | |
| 63. |
A cable with a uniformly distributed load per horizontal metre run will take the following shape |
| A. | Straight line |
| B. | Parabola |
| C. | Hyperbola |
| D. | Elliptical |
| Answer» C. Hyperbola | |
| 64. |
The C.G. of a solid hemisphere lies on the central radius 3r |
| A. | at distance — from the plane base 3r |
| B. | at distance — from the plane base 3r |
| C. | at distance — from the plane base 3r |
| D. | at distance — from the plane base or |
| Answer» E. | |
| 65. |
The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are# |
| A. | 2 and V6 |
| B. | 3 and 1 kg |
| C. | V5 and V5 |
| D. | 2 and 5 |
| Answer» D. 2 and 5 | |