MCQOPTIONS
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MCQOPTIONS
This section includes 439 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
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. | remains constant |
| Answer» D. remains constant | |
| 202. |
The rate of change of displacement of a body with respect to its surrounding, is known |
| A. | velocity |
| B. | acceleration |
| C. | speed |
| D. | none of these. |
| Answer» D. none of these. | |
| 203. |
Joule is the unit of |
| A. | work |
| B. | force |
| C. | power |
| D. | torque |
| Answer» B. force | |
| 204. |
The forces which meet at one point and have their lines of action in different planes are called |
| A. | coplaner non-concurrent forces |
| B. | non-coplaner concurrent forces |
| C. | non-coplaner non-current forces |
| D. | intersecting forces |
| Answer» C. non-coplaner non-current forces | |
| 205. |
The motion of a particle moving with S.H.M. from an extremity to the other, constitutes |
| A. | half an oscillation |
| B. | one full oscillation |
| C. | two oscillations |
| D. | none of these. |
| Answer» B. one full oscillation | |
| 206. |
The gravitational force makes a satellite go round the earth in a circular orbit, if it is projected with an initial velocity of |
| A. | 8.04 km/sec at a height of 285 km |
| B. | 11.11 km/sec at a height of 37, 400 km |
| C. | 11.26 km/sec, the satellite escapes the pull of the earth |
| D. | all the above. |
| Answer» E. | |
| 207. |
The acceleration of a train starting from rest at any instant is 1/6(V+1) m/sec² where V is the velocity of the train in m/sec. The train will attain a velocity of 36 km/hour after travelling a distance of |
| A. | 2000 m |
| B. | 2100 m |
| C. | 2200 m |
| D. | 2300 m |
| Answer» E. | |
| 208. |
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. | |
| 209. |
If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along |
| A. | the same line in the same sense |
| B. | the same line in opposite sense |
| C. | the perpendicular to both the lines |
| D. | none of these. |
| Answer» C. the perpendicular to both the lines | |
| 210. |
Periodic time of body moving with simple harmonic motion, is |
| A. | directly proportional to its angular velocity |
| B. | directly porportional to the square of its angular velocity |
| C. | inversly proportional to the square of its angular velocity |
| D. | inversely proportional to its angular velocity. |
| Answer» E. | |
| 211. |
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 | |
| 212. |
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 |
| Answer» D. 15 sec | |
| 213. |
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° | |
| 214. |
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 | |
| 215. |
The practical units of work, is |
| A. | erg |
| B. | joule |
| C. | Newton |
| D. | dyne. |
| Answer» C. Newton | |
| 216. |
P is the force acting on a body whose mass is m and acceleration is f. The equation P - mf = 0, is known as |
| A. | equation of dynamics |
| B. | equation of dynamic equilibrium |
| C. | equation of statics |
| D. | none of these. |
| Answer» B. equation of dynamic equilibrium | |
| 217. |
The centre of gravity of a triangle is at the point where three |
| A. | medians of the triangle meet |
| B. | perpendicular bisectors of the sides of the triangle meet |
| C. | bisectors of the angle of the triangle meet |
| D. | none of these. |
| Answer» B. perpendicular bisectors of the sides of the triangle meet | |
| 218. |
Two forces act an angle of 120°. If the greater force is 50 kg and their resultant is perpendicular to the smaller force, the smaller force is |
| A. | 20 kg |
| B. | 25 kg |
| C. | 30 kg |
| D. | 35 kg |
| Answer» C. 30 kg | |
| 219. |
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 |
| Answer» C. is not changed but weight of the bob is increased | |
| 220. |
The shape of a suspended cable under its own weight, is |
| A. | parabolic |
| B. | circular |
| C. | catenary |
| D. | elliptical. |
| Answer» D. elliptical. | |
| 221. |
For lifting a load of 50 kg through a distance of 2.5 cm, an effort of 12.5 kg is moved through a distance of 40 cm. The efficiency of the lifting machine, is |
| A. | 60% |
| B. | 65% |
| C. | 70% |
| D. | 75%. |
| Answer» E. | |
| 222. |
The resolved part of the resultant of two forces inclined at an angle θ 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 θ° |
| D. | sum of the forces multiplied by the sine θ |
| Answer» B. arithmetical sum of the resolved parts of the forces in the direction | |
| 223. |
The mechanical advantage of an ideal machine is 100. For moving the local through 2 m, the effort moves through |
| A. | 0.02 m |
| B. | 2 m |
| C. | 2.5 m |
| D. | 20 m. |
| Answer» B. 2 m | |
| 224. |
If two forces each equal to T in magnitude act at right angles, their effect may be neutralised by a third force acting along their bisector in opposite direction whose magnitude will be |
| A. | 2 T |
| B. | 1/2 T |
| C. | √2 T |
| D. | 3 T |
| Answer» D. 3 T | |
| 225. |
A rod 5 m in length is moving in a vertical plane. When it is inclined at 60° to horizontal, its lower end is moving horizontally at √3 m/sec and upper end is moving in vertical direction. The velocity of its upper end, is |
| A. | 0.5 m/sec |
| B. | 1.0 m/sec |
| C. | 1.5 m/sec |
| D. | 2.5 m/sec |
| Answer» C. 1.5 m/sec | |
| 226. |
A vehicle weighing w kg is to run on a circular curve of radius r. If the height of its centre of gravity above the road level is h and the distance between the centres of wheels is 2a, the maximum velocity, in order to avoid over turning, will be |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 227. |
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 | |
| 228. |
The unit of impulse, is |
| A. | kg.m/sec |
| B. | kg.m/sec³ |
| C. | kg.m/sec² |
| D. | kg.m²/sec. |
| Answer» B. kg.m/sec³ | |
| 229. |
The load shared by the member BC of the structure shown in below figure is |
| A. | 2√3t |
| B. | 3√2t |
| C. | 4 t |
| D. | 3 t |
| Answer» D. 3 t | |
| 230. |
From a solid cylinder of height 8 cm and radius 4 cm, a right circular cone is scooped out on the same base and having the same height as that of the cylinder. The c.g. of the remainder is at a height of |
| A. | 4.5 cm |
| B. | 5.0 cm |
| C. | 5.25 cm |
| D. | 5.5 cm. |
| Answer» C. 5.25 cm | |
| 231. |
Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and |
| A. | concurrent |
| B. | parallel |
| C. | concurrent parallel |
| D. | none of these. |
| Answer» B. parallel | |
| 232. |
The necessary condition of equilibrium of a body, is : |
| A. | algebraic sum of horizontal components of all the forces must be zero |
| B. | algebraic sum of vertical components of all the forces must be zero |
| C. | algebraic sum of the moments of the forces about a point must be zero |
| D. | all (a), (b) and (c). |
| Answer» E. | |
| 233. |
The centre of gravity of a quadrant of a circle lies along its central radius at a distance of |
| A. | 0.2 R |
| B. | 0.3 R |
| C. | 0.4 R |
| D. | 0.6 R. |
| Answer» E. | |
| 234. |
If the gravitational accelerational at any place is doubled, the weight of a body, will |
| A. | be reduced to half |
| B. | be doubled |
| C. | not be affected |
| D. | none of these. |
| Answer» C. not be affected | |
| 235. |
A ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is |
| A. | 0.33 |
| B. | 0.44 |
| C. | 0.57 |
| D. | 0.67 |
| Answer» E. | |
| 236. |
M.I. of solid sphere, is |
| A. | 2/3 Mr² |
| B. | 2/5 Mr² |
| C. | Mr² |
| D. | πr⁴/2 |
| Answer» D. πr⁴/2 | |
| 237. |
A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is |
| A. | 16 m/sec |
| B. | 18 m/sec |
| C. | 20 m/sec |
| D. | 22 m/sec. |
| Answer» D. 22 m/sec. | |
| 238. |
A projectile is fired at an angle θ to the vertical. Its horizontal range will be maximum when θ is |
| A. | 0° |
| B. | 30° |
| C. | 45° |
| D. | 60° |
| Answer» D. 60° | |
| 239. |
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 tension in the string is |
| A. | 17.5 kg |
| B. | 19.5 kg |
| C. | 22.5 kg |
| D. | 25 kg. |
| Answer» D. 25 kg. | |
| 240. |
The moment of inertia of a triangular section (base b, height h) about centroidal axis parallel to the base, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 241. |
In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is |
| A. | 1.5 |
| B. | 5 |
| C. | 25 |
| D. | 314 |
| Answer» E. | |
| 242. |
When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as |
| A. | imaginary work |
| B. | negative work |
| C. | virtual work |
| D. | none of these. |
| Answer» D. none of these. | |
| 243. |
To avoid bending action at the base of a pier, |
| A. | suspension and anchor cables are kept at the same level |
| B. | suspension and anchor cables are fixed to pier top |
| C. | suspension cable and anchor cables are attached to a saddle mounted on rollers on top of the pier |
| D. | none the these. |
| Answer» C. suspension cable and anchor cables are attached to a saddle mounted on rollers on top of the pier | |
| 244. |
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 | |
| 245. |
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' |
| Answer» D. 20° 48' | |
| 246. |
A heavy ladder resting on a floor and against a vertical wall may not be in equilibrium, if |
| A. | floor is smooth and the wall is rough |
| B. | floor is rough and the wall is smooth |
| C. | floor and wall both are smooth surfaces |
| D. | floor and wall both are rough surfaces. |
| Answer» D. floor and wall both are rough surfaces. | |
| 247. |
A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be |
| A. | 0.01 m/sec |
| B. | 0.05 m/sec |
| C. | 1.00 m/sec |
| D. | 1.5 m/see. |
| Answer» C. 1.00 m/sec | |
| 248. |
The inherent property of a body which offers reluctance to change its state of rest or uniform motion, is |
| A. | weight |
| B. | mass |
| C. | interia |
| D. | momentum. |
| Answer» D. momentum. | |
| 249. |
The equation of motion of a particle starting from rest along a straight line is x = t³ - 3t² + 5. The ratio of the accelerations after 5 sec and 3 sec will be |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» B. 3 | |
| 250. |
The reaction at the support D of the continuous beam ABCD, hinged at two points shown in below figure is |
| A. | 1.6 t ↑ |
| B. | 1.6 t ↓ |
| C. | 0.5 t ↑ |
| D. | 0.5 t ↓ |
| Answer» C. 0.5 t ↑ | |