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MCQOPTIONS
This section includes 5814 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 5151. |
If the depth of actual neutral axis of a doubly reinforced beam |
| A. | is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier |
| B. | is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier |
| C. | is equal to the depth of critical neutral axis, the concrete and steel attain their maximum stresses simultanesouly |
| D. | all the above. |
| Answer» E. | |
| 5152. |
The length of the straight portion of a bar beyond the end of the hook, should be at least |
| A. | twice the diameter |
| B. | thrice the diameter |
| C. | four times the diameter |
| D. | five times the diameter |
| E. | seven times the diameter. |
| Answer» F. | |
| 5153. |
P is the prestressed force applied to tendon of a rectangular prestressed beam whose area of cross section is A and sectional modulus is Z. The minimum stress f on the beam subjected to a maximum bending moment M is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-204-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-204-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-204-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-204-4.png"> |
| E. | <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-204-5.png"> |
| Answer» D. <img src="/_files/images/civil-engineering/rcc-structures-design/86-13-204-4.png"> | |
| 5154. |
In a singly reinforced beam |
| A. | compression is borne entirely by concrete |
| B. | steel possesses initial stresses when em-beded in concrete |
| C. | plane sections transverse to the centre line of the beam before bending remain plane after bending |
| D. | elastic modulii for concrete and steel have different values within the limits of deformation of the beam |
| E. | none of these. |
| Answer» D. elastic modulii for concrete and steel have different values within the limits of deformation of the beam | |
| 5155. |
On an absolutely rigid foundation base, the pressure will |
| A. | be more at the edges of the foundation |
| B. | be uniform |
| C. | not be uniform |
| D. | be zero at the centre of the foundation. |
| Answer» D. be zero at the centre of the foundation. | |
| 5156. |
The pitch of the main bars in a simply supported slab, should not exceed its effective depth by |
| A. | three times |
| B. | four times |
| C. | five times |
| D. | six times |
| E. | seven times. |
| Answer» E. seven times. | |
| 5157. |
A pre-cast pile generally used, is |
| A. | circular |
| B. | square |
| C. | octagonal |
| D. | square with corners chamfered. |
| Answer» E. | |
| 5158. |
As per IS : 456, the reinforcement in a column should not be less than |
| A. | 0.5% and not more than 5% of cross-sec-tional area |
| B. | 0.6% and not more than 6% of cross-see-tional area |
| C. | 0.7% and not more than 7% of cross-sec-tional area |
| D. | 0.8% and not more than 8% of cross-sectional area |
| E. | none of these. |
| Answer» E. none of these. | |
| 5159. |
If W is weight of a retaining wall and P is the horizontal earth pressure, the factor of safety against sliding, is |
| A. | 1.0 |
| B. | 1.25 |
| C. | 1.5 |
| D. | 2.0 |
| E. | 2.5 |
| Answer» D. 2.0 | |
| 5160. |
If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth (D) of the footing from punching shear consideration, is |
| A. | <img src="/_files/images/civil-engineering/rcc-structures-design/80-13-136-1.png"> |
| B. | <img src="/_files/images/civil-engineering/rcc-structures-design/80-13-136-2.png"> |
| C. | <img src="/_files/images/civil-engineering/rcc-structures-design/80-13-136-3.png"> |
| D. | <img src="/_files/images/civil-engineering/rcc-structures-design/80-13-136-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/rcc-structures-design/80-13-136-3.png"> | |
| 5161. |
The centre of gravity of a homogenous body is the point at which the whole |
| A. | volume of the body is assumed to be concentrated |
| B. | area of the surface of the body is assumed to be concentrated |
| C. | weight of the body is assumed to be concentrated |
| D. | all the above. |
| Answer» D. all the above. | |
| 5162. |
Centre of gravity of a thin hollow cone lies on the axis of symmmetry at a height of |
| A. | one-half of the total height above base |
| B. | one-third of the total height above base |
| C. | one-fourth of the total height above base |
| D. | none of these. |
| Answer» C. one-fourth of the total height above base | |
| 5163. |
A retarding force on a body does not |
| A. | change the motion of the body |
| B. | retard the motion of the body |
| C. | introduce the motion of the body |
| D. | none of these. |
| Answer» C. introduce the motion of the body | |
| 5164. |
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 | |
| 5165. |
A block of weight 50 kg is placed on a horizontal plane. When a horizontal force of 18 kg is applied, the block is just on the point of motion. The angle of friction is |
| A. | 17 48' |
| B. | 18 48' |
| C. | 19 48' |
| D. | 20 48' |
| E. | 21 48'. |
| Answer» D. 20 48' | |
| 5166. |
From a circular plate of a diameter 6 cm is cut out a circle whose diameter is equal to the radius of the plate. The C.G. of the remainder from the centre of circular plate is at a distance of |
| A. | 2.0 cm |
| B. | 1.5 cm |
| C. | 1.0 |
| D. | 0.5 cm. |
| Answer» E. | |
| 5167. |
The force which produces an acceleration of 1 m/sec2 in a mass of one kg, is called |
| A. | dyne |
| B. | Netwon |
| C. | joule |
| D. | erg. |
| Answer» C. joule | |
| 5168. |
Lami's theroem states that |
| A. | three forces acting at a point are always in equilibrium |
| B. | if three forces acting on a point can be represented in magnitude and direction by the sides of a triangle, the point will be in the state of equilibrium |
| C. | three coplaner forces acting at a point will be in equilibrium, if each force is proportional to the sine of the angle between the other two |
| D. | three coplaner forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two |
| E. | none of these. |
| Answer» D. three coplaner forces acting at a point will be in equilibrium if each force is inversely proportional to the sine of the angle between the other two | |
| 5169. |
A Seconds pendulum executes |
| A. | 0.5 beat per second |
| B. | 1.0 beat per second |
| C. | 2.0 beats per second |
| D. | 2.5 beats per second |
| E. | 3 beats per second. |
| Answer» D. 2.5 beats per second | |
| 5170. |
Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature, |
| A. | dip of the cable increases |
| B. | length of the cable increases |
| C. | dip of the cable decreases |
| D. | none of the these. |
| Answer» D. none of the these. | |
| 5171. |
For a body moving with simple harmonic motion, the number of cycles per second, is known as its |
| A. | oscillation |
| B. | amplitude |
| C. | periodic time |
| D. | beat |
| E. | frequency. |
| Answer» F. | |
| 5172. |
If the horizontal range is 2.5 times the greatest height, the angle of projection of the projectile, is |
| A. | 57 |
| B. | 58 |
| C. | 59 |
| D. | 60 . |
| Answer» C. 59 | |
| 5173. |
The shape of a suspended cable under its own weight, is |
| A. | parabolic |
| B. | circular |
| C. | catenary |
| D. | elliptical. |
| Answer» D. elliptical. | |
| 5174. |
Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is |
| A. | 2 sec |
| B. | 3 sec |
| C. | 4 sec |
| D. | 5 sec |
| E. | 6 sec. |
| Answer» D. 5 sec | |
| 5175. |
The characteristic of a couple, is : |
| A. | algebraic sum of forces, constituting a couple is zero |
| B. | algebraic sum of moments of forces, constituting a couple, about any poin, is same |
| C. | a couple can be balanced only by a couple but of opposite sense |
| D. | a couple can be never the balanced by a single force |
| E. | all the above. |
| Answer» F. | |
| 5176. |
When a body of mass M1 is hanging freely and an other of mass M2 lying on a smooth inclined plane( ) are connected by a light indextensible string passing over a smooth pulley, the acceleration of the body of mass M1, will be given by |
| A. | <img src="/_files/images/civil-engineering/applied-mechanics/112-5.170-1.png"> |
| B. | <img src="/_files/images/civil-engineering/applied-mechanics/112-5.170-2.png"> |
| C. | <img src="/_files/images/civil-engineering/applied-mechanics/112-5.170-3.png"> |
| D. | <img src="/_files/images/civil-engineering/applied-mechanics/112-5.170-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/applied-mechanics/112-5.170-3.png"> | |
| 5177. |
According to Law of Triangle of Forces |
| A. | three forces acting at a point, can be rep-resented by the sides of a triangle, each side being in proportion to the force |
| B. | three forces acting along the sides of a triangle are always in equilibrium |
| C. | if three forces acting on a, point can be represented.in magnitude and direction, by the sides of a triangle taken in order, these 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 |
| E. | if the forces acting on a particle be represented in magnitude and direction by the two sides of a triangle taken in order, their resultant will be represented in magnitude and direction by the third side of the triangle, taken in opposite order. |
| Answer» F. | |
| 5178. |
A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length |
| A. | must be decreased |
| B. | must be increased |
| C. | is not changed but weight of the bob is increased |
| D. | is not changed but weight of the bob is decreased |
| E. | none of these. |
| Answer» C. is not changed but weight of the bob is increased | |
| 5179. |
A spring scale in a stationary lift shows a reading of 60 kg for a man standing on it. If the lift starts descending at an acceleration of g/5, the scale reading would be |
| A. | 48 kg |
| B. | 60 kg |
| C. | 72 kg |
| D. | none of these. |
| Answer» B. 60 kg | |
| 5180. |
The resolved part of the resultant of two forces inclined at an angle in a given direction is |
| A. | algebraic sum of the resolved parts of the forces in the direction |
| B. | arithmetical sum of the resolved parts of the forces in the direction |
| C. | difference of the forces multiplied by cosine |
| D. | sum of the forces multiplied by the sine |
| E. | sum of the forces multiplied by the tangent . |
| Answer» B. arithmetical sum of the resolved parts of the forces in the direction | |
| 5181. |
The velocity ratio of the differential wheel and axle is |
| A. | <img src="/_files/images/civil-engineering/applied-mechanics/115-5.219-1.png"> |
| B. | <img src="/_files/images/civil-engineering/applied-mechanics/115-5.219-2.png"> |
| C. | <img src="/_files/images/civil-engineering/applied-mechanics/115-5.219-3.png"> |
| D. | <img src="/_files/images/civil-engineering/applied-mechanics/115-5.219-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/applied-mechanics/115-5.219-3.png"> | |
| 5182. |
The ratio of the ranges on the inclined plane with motion upward and with motion downward for a given velocity, angle of projection will be |
| A. | <img src="/_files/images/civil-engineering/applied-mechanics/106-5.88-1.png"> |
| B. | <img src="/_files/images/civil-engineering/applied-mechanics/106-5.88-2.png"> |
| C. | <img src="/_files/images/civil-engineering/applied-mechanics/106-5.88-3.png"> |
| D. | <img src="/_files/images/civil-engineering/applied-mechanics/106-5.88-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/applied-mechanics/106-5.88-3.png"> | |
| 5183. |
A 50 kg boy climbs up a 8 m rope in gymnasiam in 10 sec. The average power developed by the boy is approximately |
| A. | 400 watts |
| B. | 500 watts |
| C. | 4000 watts |
| D. | none of these. |
| Answer» B. 500 watts | |
| 5184. |
The following statement is one of the laws of Dynamic friction |
| A. | The force of friction always acts in a direction opposite to that in which a body is moving |
| B. | The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction |
| C. | For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed |
| D. | all the above. |
| Answer» E. | |
| 5185. |
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 | |
| 5186. |
For maximum range of a projectile, the angle of projection should be |
| A. | 30 |
| B. | 45 |
| C. | 60 |
| D. | none of these. |
| Answer» C. 60 | |
| 5187. |
If the angle of projection is double the angle of inclination ( ) of the plane on which particle is projected, the ratio of times of fligh up the inclined plane and down the inclined plane, will be |
| A. | <img src="/_files/images/civil-engineering/applied-mechanics/106-5.86-1.png"> |
| B. | <img src="/_files/images/civil-engineering/applied-mechanics/106-5.86-2.png"> |
| C. | <img src="/_files/images/civil-engineering/applied-mechanics/106-5.86-3.png"> |
| D. | 2 cos . |
| Answer» B. <img src="/_files/images/civil-engineering/applied-mechanics/106-5.86-2.png"> | |
| 5188. |
A satellite goes on moving along its orbit round the earth due to |
| A. | gravitational force |
| B. | centrifugal force |
| C. | centripital force |
| D. | none of these. |
| Answer» C. centripital force | |
| 5189. |
A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec2. Time required to traverse a distance of 1.5 m, is |
| A. | 40 sec |
| B. | 30 sec |
| C. | 20 sec |
| D. | 15 sec |
| E. | 10 sec. |
| Answer» D. 15 sec | |
| 5190. |
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 |
| E. | none of these. |
| Answer» D. inversely proportion to the distance from the point of reference | |
| 5191. |
One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The reaction between the sphere and the wall of the arrangement made is |
| A. | 102.5 kg |
| B. | 105.5 kg |
| C. | 108.5 kg |
| D. | 110 kg. |
| Answer» B. 105.5 kg | |
| 5192. |
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. | |
| 5193. |
A pilot flies a small plane in a vertical loop of radius r. At the top of its trajectory he experiences weightlessness. If the acceleration due to gravity is g, the speed of the plane at the top of its trajectory would be |
| A. | zero |
| B. | infinite |
| C. | <span class="root"><i>gr</i></span> |
| D. | <span class="root">2<i>gr</i></span> |
| E. | . |
| Answer» D. <span class="root">2<i>gr</i></span> | |
| 5194. |
A ball moving with a velocity of 5 m/sec impinges a fixed plane at an angle of 45 and its direction after impact is equally inclined to the line of impact. If the coefficient of restitution is 0.5, the velocity of the ball after impact will be |
| A. | 0.5 m/sec |
| B. | 1.5 m/sec |
| C. | 2.5 m/sec |
| D. | 3.5 m/sec |
| E. | 4.5 m/sec. |
| Answer» D. 3.5 m/sec | |
| 5195. |
The distance of the c.g. of a semi-circular arc of radius r from its diameter along the radius of symmetry, is |
| A. | <img src="/_files/images/civil-engineering/applied-mechanics/116-5.231-1.png"> |
| B. | <img src="/_files/images/civil-engineering/applied-mechanics/116-5.231-2.png"> |
| C. | <img src="/_files/images/civil-engineering/applied-mechanics/116-5.231-3.png"> |
| D. | <img src="/_files/images/civil-engineering/applied-mechanics/116-5.231-4.png"> |
| Answer» E. | |
| 5196. |
Varigon's theorem of moments states |
| A. | arithmetical sum of the moments of two forces about any point, is equal to the moments of their resultant about that point |
| B. | algebraic sum of the moments of two forces about any point, is equal to the moment of their resultant about that point |
| C. | arithmetical sum of the moments of the forces about any point in their plane, is equal to the moment of their resultant about that point |
| D. | algebraic sum of the moments of the forces about any point in their plane, is equal to the moment of their resulant about that point. |
| Answer» E. | |
| 5197. |
A glass ball is shot to hit a wall from a point on a smooth floor. If the ball returns back to the point of projection in twice the time taken in reaching the wall, the coefficient of restitution between the glass ball and the wall is |
| A. | 0.25 |
| B. | 0.33 |
| C. | 0.40 |
| D. | 0.50 |
| E. | 0.55 |
| Answer» E. 0.55 | |
| 5198. |
The ratio of the reactions RA and RB of a simply supported beam shown in below figure is |
| A. | 0.50 |
| B. | 0.40 |
| C. | 0.67 |
| D. | 1.00 |
| E. | 1.50 |
| Answer» E. 1.50 | |
| 5199. |
Effect of a force on a body depends upon its |
| A. | direction |
| B. | magnitude |
| C. | position |
| D. | all the above. |
| Answer» E. | |
| 5200. |
In case of S.H.M. the period of oscillation(T), is given by |
| A. | <img src="/_files/images/civil-engineering/applied-mechanics/108-5.108-1.png"> |
| B. | <img src="/_files/images/civil-engineering/applied-mechanics/108-5.108-2.png"> |
| C. | <img src="/_files/images/civil-engineering/applied-mechanics/108-5.108-3.png"> |
| D. | <img src="/_files/images/civil-engineering/applied-mechanics/108-5.108-4.png"> |
| Answer» C. <img src="/_files/images/civil-engineering/applied-mechanics/108-5.108-3.png"> | |