MCQOPTIONS
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MCQOPTIONS
This section includes 314 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
__To attain the synchronous orbit, the launch of a satellite, is done from a place__ |
| A. | On equator |
| B. | On 30° latitude |
| C. | On 45° latitude |
| D. | On the poles |
| Answer» B. On 30¬¨‚àû latitude | |
| 152. |
__Power developed by a torque, is__ |
| A. | 2πNT kg m/min |
| B. | 2πNT/4500 h.p |
| C. | 2πNT /60 watts |
| D. | All the above |
| Answer» E. | |
| 153. |
__A 2 m long ladder rests against a wall and makes an angle of 30° with the horizontal floor. Where will be the instantaneous center of rotation when the ladder starts slipping ?i. 1.0 in from the wallii. 1.732 m from the walliii. 1.0 m above the flooriv. 1.732 m above the floorThe correct answer is__ |
| A. | (i) and (iii) |
| B. | (i) and (iv) |
| C. | (ii) and (iii) |
| D. | (ii) and (iv) |
| Answer» E. | |
| 154. |
__The resultant of the forces acting on a body will be zero if the body__ |
| A. | Rotates |
| B. | Moves with variable velocity in a straight line |
| C. | Moves along a curved path |
| D. | Does not move at all |
| Answer» E. | |
| 155. |
__A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration__ |
| A. | At the start |
| B. | At the top of the trajectory |
| C. | As it strikes the ground |
| D. | Elsewhere |
| Answer» B. At the top of the trajectory | |
| 156. |
__The velocity ratio of an inclined plane of inclination ‘θ’ with horizontal for lifting a load is__ |
| A. | sin θ |
| B. | cos θ |
| C. | tan θ |
| D. | cosec θ |
| Answer» E. | |
| 157. |
__A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be__ |
| A. | Zero |
| B. | 5 m/sec |
| C. | 10 m/sec |
| D. | None of these |
| Answer» B. 5 m/sec | |
| 158. |
__The total kinetic energy of a hoop of mass 2 kg and radius 4 m sliding with linear velocity 8 m/sec and angular velocity 5 radian/sec is__ |
| A. | 64 J |
| B. | 400 J |
| C. | 464 J |
| D. | 89 J |
| Answer» D. 89 J | |
| 159. |
_When a body falls freely under gravitational force, it possesses$? |
| A. | Maximum weight |
| B. | Minimum weight |
| C. | No weight |
| D. | No effect on its weight |
| Answer» D. No effect on its weight | |
| 160. |
_The velocity ratio of the differential wheel and axle is$? |
| A. | R/r1 - r2 |
| B. | 2R/r1 |
| C. | 3R/r1 - r2 |
| D. | 2R/r1 + r2 |
| Answer» C. 3R/r1 - r2 | |
| 161. |
_The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is$? |
| A. | 98 m |
| B. | 490 m |
| C. | 980 m |
| D. | 1960 m |
| Answer» D. 1960 m | |
| 162. |
_The angle of projection at which the horizontal range and maximum height of a projectile are equal to$? |
| A. | 45° |
| B. | tan-1 (2) |
| C. | tan-‘ (4) |
| D. | tan”1 (1/4) |
| Answer» D. tan‚Äö√Ñ√π1 (1/4) | |
| 163. |
_A square hole is made in a circular lamina, the diagonal of the square is equal to the radius of the circle as shown in below figure the shift in the centre of gravity is$? |
| A. | r (π - 0.75)/(π - 0.5) |
| B. | r (π - 0.25)/(π - 0.75) |
| C. | r (π - 0.5)/(π - 0.75) |
| D. | r (π - 0.5)/(π - 0.25) |
| Answer» B. r (≈ì√Ñ - 0.25)/(≈ì√Ñ - 0.75) | |
| 164. |
_A stone is thrown up a slope of inclination 60° to the horizontal. At what angle to the slope must the stone be thrown so as to land as far as possible from the point of projection ?$? |
| A. | 15° |
| B. | 30° |
| C. | 45° |
| D. | 75° |
| Answer» B. 30¬¨‚àû | |
| 165. |
_The following is in unstable equilibrium$? |
| A. | A uniform solid cone resting on a generator on a smooth horizontal plane |
| B. | A uniform solid cone resting on its base on a horizontal plane |
| C. | A solid cube resting on one edge |
| D. | A satellite encircling the earth |
| Answer» D. A satellite encircling the earth | |
| 166. |
_If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is$? |
| A. | 30° |
| B. | 45° |
| C. | 60° |
| D. | 120° |
| Answer» E. | |
| 167. |
_Periodic time of body moving with simple harmonic motion, is$? |
| A. | Directly proportional to its angular velocity |
| B. | Directly proportional to the square of its angular velocity |
| C. | Inversely proportional to the square of its angular velocity |
| D. | Inversely proportional to its angular velocity |
| Answer» E. | |
| 168. |
_The C.G. of a right circular cone lies on its axis of symmetry at a height of$? |
| A. | h/2 |
| B. | h/3 |
| C. | h/4 |
| D. | h/5 |
| Answer» D. h/5 | |
| 169. |
_The C.G. of a thin hollow cone of height ‘h’, above its base lies on the axis, at a height of$? |
| A. | h/3 |
| B. | h/4 |
| C. | 2h/3 |
| D. | 3h/4 |
| Answer» D. 3h/4 | |
| 170. |
_The numbers of funicular polygons which can be drawn to pass through two specified points in the space diagram are$? |
| A. | Zero |
| B. | 1 |
| C. | 2 |
| D. | Infinity |
| Answer» E. | |
| 171. |
_Engineer's units of force, is$? |
| A. | Newton in absolute units |
| B. | Dyne in absolute units |
| C. | Newton and dyne in absolute units |
| D. | All the above |
| Answer» B. Dyne in absolute units | |
| 172. |
_Maximum efficiency of a screw jack for the angle of friction θ, is$? |
| A. | sin θ/(1 + sin θ) |
| B. | (1 - sin θ)/sin θ |
| C. | (1 + sin θ)/(1 - sin θ) |
| D. | (1 - sin θ)/(1 + sin θ) |
| Answer» E. | |
| 173. |
_A point subjected to a number of forces will be in equilibrium, if$? |
| A. | Sum of resolved parts in any two directions at right angles, are both zero |
| B. | Algebraic sum of the forces is zero |
| C. | Two resolved parts in any two directions at right angles are equal |
| D. | Algebraic sum of the moments of the forces about the point is zero |
| Answer» B. Algebraic sum of the forces is zero | |
| 174. |
_A ladder of weight 'w' rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight 'w' is to walk to the top of it safely, is tan'1 x, where x is$? |
| A. | 1/4 |
| B. | 1/3 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 175. |
_The reaction at the support B of the beam shown in below figure is$? |
| A. | 1.6 t |
| B. | 9.6 t |
| C. | 8.5 t |
| D. | 0.5 t |
| Answer» D. 0.5 t | |
| 176. |
_‘ω’ rad/sec is the angular velocity of a crank whose radius is ‘r’. If it makes θ° with inner dead centre and obliquity of the connecting rod ‘l’ is ‘ϕ’, the velocity v of the piston, is given by the equation$? |
| A. | ω² (l cos ϕ + r sin ϕ tan θ) |
| B. | ω² (l sin ϕ + r cos φ tan θ) |
| C. | ω (l sin ϕ + r cos ϕ tan θ) |
| D. | ω² (l sin ϕ - r cos θ tan ϕ) |
| Answer» D. ≈ì√¢¬¨‚⧠(l sin ≈ì√Ø - r cos ≈í‚àè tan ≈ì√Ø) | |
| 177. |
_Kinetic friction may be defined as$? |
| A. | Friction force acting when the body is just about to move |
| B. | Friction force acting when the body is in motion |
| C. | Angle between normal reaction and resultant of normal reaction and limiting friction |
| D. | Ratio of limiting friction and normal reaction |
| Answer» C. Angle between normal reaction and resultant of normal reaction and limiting friction | |
| 178. |
_A block in the shape of a parallelepiped of sides 1m √ó 2m √ó 3m lies on the surface. Which of the faces gives maximum stable block?$? |
| A. | 1 m √ó 2 m |
| B. | 2 m √ó 3 m |
| C. | 1 m √ó 3 m |
| D. | Equally stable on all faces |
| Answer» C. 1 m ‚àö√≥ 3 m | |
| 179. |
_A body is said to move with Simple Harmonic Motion if its acceleration, is$? |
| A. | Always directed away from the centre, the point of reference |
| B. | Proportional to the square of the distance from the point of reference |
| C. | Proportional to the distance from the point of reference and directed towards it |
| D. | Inversely proportion to the distance from the point of reference |
| Answer» D. Inversely proportion to the distance from the point of reference | |
| 180. |
_An ordinate in a funicular polygon represents$? |
| A. | Shear force |
| B. | Resultant force |
| C. | Bending moment |
| D. | Equilibrium |
| Answer» D. Equilibrium | |
| 181. |
_A particle moves along a straight line such that distance ‘x’ traversed in ‘t’ seconds is given by x = t²(t + 1), the acceleration of the particle, will be$? |
| A. | 3t³ - 2t |
| B. | 3t² + 2t |
| C. | 6t - 2 |
| D. | 6t + 2 |
| Answer» E. | |
| 182. |
_A cube on a smooth horizontal surface$? |
| A. | Cannot be in stable equilibrium |
| B. | Cannot be in neutral equilibrium |
| C. | Cannot be in unstable equilibrium |
| D. | Can be in any of these states |
| Answer» E. | |
| 183. |
_Cartesian form of the equation of catenary is$? |
| A. | y = c cosh x/c |
| B. | y = c sinh x/c |
| C. | y = c tan x/c |
| D. | y = c sin x/c |
| Answer» B. y = c sinh x/c | |
| 184. |
_Pick up the incorrect statement from the following:$? |
| A. | The C.G. of a circle is at its centre |
| B. | The C.G. of a triangle is at the intersection of its medians |
| C. | The C.G. of a rectangle is at the intersection of its diagonals |
| D. | The C.G. of a semicircle is at a distance of r/2 from the centre |
| Answer» E. | |
| 185. |
If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by$? |
| A. | g1 |
| B. | g2 |
| C. | g1/g2 |
| D. | g2/g1 |
| Answer» E. | |
| 186. |
When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are$? |
| A. | Straight line and parabola |
| B. | Straight line and circle |
| C. | Circle and straight line |
| D. | Circle and parabola |
| Answer» D. Circle and parabola | |
| 187. |
Pick up the correct statement from the following. A rubber ball when strikes a wall rebounds but a lead ball of same mass and velocity when strikes the same wall, falls down$? |
| A. | Rubber and lead balls undergo equal changes in momentum |
| B. | Change in momentum suffered by lead ball is less that of rubber ball |
| C. | Momentum of rubber ball is less than that of lead ball |
| D. | None of these |
| Answer» E. | |
| 188. |
The unit of force in C.G.S. system of units, is called$? |
| A. | Dyne |
| B. | Newton |
| C. | Kg |
| D. | All the above |
| Answer» B. Newton | |
| 189. |
Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction.The speeds of the objects are:$? |
| A. | 2 m/sec and 2 m/sec |
| B. | 3 m/sec and 2 m/sec |
| C. | 3 m/sec and 3 m/sec |
| D. | 4 m/sec and 6 m/sec |
| Answer» C. 3 m/sec and 3 m/sec | |
| 190. |
The following is not a law of static friction:$? |
| A. | The force of friction always acts in a direction opposite to that in which the body tends to move |
| B. | The force of friction is dependent upon the area of contact |
| C. | The force of friction depends upon the roughness of the surface |
| D. | The magnitude of the limiting friction bears a constant ratio to the normal reaction between two surfaces |
| Answer» B. The force of friction is dependent upon the area of contact | |
| 191. |
In a lifting machine a weight of 5 kN is lifted through 200 mm by an effort of 0.1 kN moving through 15 m. The mechanical advantage and velocity ratio of the machine are respectively$? |
| A. | 50 and 75 |
| B. | 75 and 50 |
| C. | 75 and 75 |
| D. | 50 and 50 |
| Answer» B. 75 and 50 | |
| 192. |
Pick up the correct statement from the following. The kinetic energy of a body$? |
| A. | Before impact is equal to that after impact |
| B. | Before impact is less than that after impact |
| C. | Before impact is more than that after impact |
| D. | Remain constant |
| Answer» D. Remain constant | |
| 193. |
Effect of a force on a body depends upon its$? |
| A. | Direction |
| B. | Magnitude |
| C. | Position |
| D. | All the above |
| Answer» E. | |
| 194. |
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?$? |
| A. | pyramid |
| B. | prism |
| C. | both equally stable |
| D. | none of the above |
| Answer» B. prism | |
| 195. |
A weight of 100 kg is supported by a string whose ends are attached to pegs ‘A’ and ‘B’ at the same level shown in below figure. The tension in the string is$? |
| A. | 50 kg |
| B. | 750 kg |
| C. | 100 kg |
| D. | 120 kg |
| Answer» D. 120 kg | |
| 196. |
A sphere is resting on two planes BA and BC which are inclined at 45° and 60° respectively with the horizontal. The reaction on the plane BA will be$? |
| A. | Less than that on BC |
| B. | More than that of BC |
| C. | Equal to that on BC |
| D. | None of these |
| Answer» C. Equal to that on BC | |
| 197. |
On a ladder resisting on a smooth ground and leaning against a rough vertical wall, the force of friction acts$? |
| A. | Towards the wall at its upper end |
| B. | Away from the wall at its upper end |
| C. | Upwards at its upper end |
| D. | Downwards at its upper end |
| Answer» D. Downwards at its upper end | |
| 198. |
The moment of inertia of a circular lamina of diameter ‘d’, about an axis perpendicular to the plane of the lamina and passing through its centre, is$? |
| A. | π/64 (D⁴ + d⁴) |
| B. | πd⁴/16 |
| C. | πd⁴/24 |
| D. | πd⁴/32 |
| Answer» E. | |
| 199. |
A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2A, the energy becomes$? |
| A. | E |
| B. | E/2 |
| C. | 2E |
| D. | 4E |
| Answer» E. | |
| 200. |
The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is$? |
| A. | 188.5 m/sec |
| B. | 18.85 m/sec |
| C. | 1.885 m/sec |
| D. | 0.18845 m/sec |
| Answer» D. 0.18845 m/sec | |