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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.
| 301. |
The locus of the instantaneous centre of a moving rigid body, is |
| A. | straight line |
| B. | involute |
| C. | centroid |
| D. | spiral. |
| Answer» D. spiral. | |
| 302. |
Equation of motion of a point in a straight line, is |
| A. | v = u + ft |
| B. | S = ut + 1/2ft² |
| C. | 2fS = v² - u² |
| D. | all the above. |
| Answer» E. | |
| 303. |
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 | |
| 304. |
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. | |
| 305. |
Effect of a force on a body depends upon its |
| A. | direction |
| B. | magnitude |
| C. | position |
| D. | all the above. |
| Answer» E. | |
| 306. |
On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts |
| A. | downwards at its upper end |
| B. | upwards at its upper end |
| C. | perpendicular to the wall at its upper end |
| D. | zero at its upper end |
| Answer» E. | |
| 307. |
The ratio of the moment of inertia of a rectangle about its centroidal axis to the moment of inertia about its base, is |
| A. | 1/4 |
| B. | 1/2 |
| C. | 3/4 |
| D. | 2. |
| Answer» B. 1/2 | |
| 308. |
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 | |
| 309. |
If two equal forces of magnitude P act at an angle θ, their resultant, will be |
| A. | P cos θ/2 |
| B. | 2P sin θ/2 |
| C. | P tan θ/2 |
| D. | 2P cos θ/2 |
| Answer» E. | |
| 310. |
A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The mechanical advantage of the lifting machine is |
| A. | 15 |
| B. | 18 |
| C. | 20 |
| D. | 26. |
| Answer» D. 26. | |
| 311. |
Pick up the incorrect statement from the following. In a simple harmonic motion |
| A. | velocity is maximum at its mean position |
| B. | velocity is minimum at the end of the storke |
| C. | acceleration is minimum at the end of the stroke |
| D. | acceleration is zero at the mean position. |
| Answer» D. acceleration is zero at the mean position. | |
| 312. |
The apparent weight of a man in a moving lift is less than his real weight when it is going down with |
| A. | uniform speed |
| B. | an acceleration |
| C. | linear momentum |
| D. | retardation. |
| Answer» C. linear momentum | |
| 313. |
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 |
| Answer» D. 5 sec | |
| 314. |
A stone of mass 1 kg is tied to a string of length 1 m and whirled in a horizontal circle at a constant angular speed 5 rad/sec. The tension in the string is, |
| A. | 5 N |
| B. | 10 N |
| C. | 15 N |
| D. | 25 N |
| Answer» E. | |
| 315. |
If the angle of projection is double the angle of inclination (α) of the plane on which particle is projected, the ratio of times of flight up the inclined plane and down the inclined plane, will be |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 316. |
A body of weight w placed on an inclined plane is acted upon by a force P parallel to the plane which causes the body just to move up the plane. If the angle of inclination of the plane is θ and angle of friction is φ, the minimum value of P, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 317. |
If α and u are angle of projection and initial velocity of a projectile respectively, the total time of flight, is given by |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 318. |
In case of S.H.M. the period of oscillation(T), is given by |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 319. |
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. | |
| 320. |
If the radius of the earth is 600 km the height of a mountain above sea level at the top of which a beat seconds pendulum at sea level, looses 27 seconds a day, is |
| A. | 500 metres |
| B. | 1000 metres |
| C. | 1500 metres |
| D. | 2000 metres |
| Answer» E. | |
| 321. |
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation |
| A. | is directly proportional to their velocity of approach |
| B. | is inversely proportional to their velocity of approach |
| C. | bears a constant ratio to their velocity of approach |
| D. | is equal to the sum of their velocities of approach. |
| Answer» D. is equal to the sum of their velocities of approach. | |
| 322. |
The displacement of a particle which moves along a straight line is given by S = 4t³ + 3t² - 10 where S is in meters and t is in seconds. The time taken by the particle to acquire a velocity of 18 m/sec from rest, is |
| A. | 1/2 sec |
| B. | 1 sec |
| C. | 1.5 sec |
| D. | 1.5 sec. |
| Answer» C. 1.5 sec | |
| 323. |
The tension in a cable supporting a lift |
| A. | is more when the lift is moving downwards |
| B. | is less when the lift is moving upwards |
| C. | remains constant whether its moves downwards or upwards |
| D. | is less when the lift is moving downwards. |
| Answer» E. | |
| 324. |
A weight W is suspended at the free end of a light member hinged to a vertical wall. If the angle of inclination of the member with the upper wall is θ°, the force introduced in the member, is |
| A. | W sec θ |
| B. | W cos θ |
| C. | W sin θ |
| D. | W cosec θ |
| Answer» B. W cos θ | |
| 325. |
The reaction RB of the roller support B of the beam shown in below figure is |
| A. | 10.8 t |
| B. | 10.6 t |
| C. | 10.4 t |
| D. | 10.2 t |
| Answer» B. 10.6 t | |
| 326. |
A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is |
| A. | 40 kg |
| B. | 60 kg |
| C. | 10 kg |
| D. | 100 kg. |
| Answer» D. 100 kg. | |
| 327. |
The maximum frictional force which comes into play, when a body just begins to slide over the surface of a an other body, is known |
| A. | sliding friction |
| B. | rolling friction |
| C. | limiting friction |
| D. | none of these. |
| Answer» D. none of these. | |
| 328. |
The Law of Polygon of Forces states that |
| A. | if a polygen representing the forces acting at point in a body is closed, the forces are in equilibrium |
| B. | if forces acting on a point can be represented in magnitde and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by the closing side of the polygon |
| C. | if forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side of the polygon, taken in opposite order |
| D. | if forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium. |
| Answer» D. if forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium. | |
| 329. |
At a given instant ship A is travelling at 6 km/h due east and ship B is travelling at 8 km/h due north. The velocity of B relative to A is |
| A. | 7 km/hrs |
| B. | 2 km/hrs |
| C. | 1 km/hrs |
| D. | 10 km/hrs |
| Answer» E. | |
| 330. |
A projectile is thrown at an angle a to the horizontal with α 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. | else where. |
| Answer» B. at the top of the trajectory | |
| 331. |
The length of a Second's pendulum, is |
| A. | 99.0 cm |
| B. | 99.4 cm |
| C. | 100 cm |
| D. | 101 cm |
| Answer» C. 100 cm | |
| 332. |
If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called |
| A. | virtual work |
| B. | imaginary work |
| C. | zero work |
| D. | negative work. |
| Answer» E. | |
| 333. |
A trolley wire weighs 1 kg per metre length. The ends of the wire are attached to two poles 20 m apart. If the horizontal tension is 1000 kg, the central dip of the cable is |
| A. | 2 cm |
| B. | 3 cm |
| C. | 4 cm |
| D. | 5 cm. |
| Answer» E. | |
| 334. |
The member which does not carry zero force in the structure shown in below figure, is |
| A. | ED |
| B. | DC |
| C. | BC |
| D. | BD |
| Answer» E. | |
| 335. |
A body of weight 14 g appears to weight 13 g when weighed by a spring balance in a moving lift. The acceleration of the lift at that moment was |
| A. | 0.5 m/sec² |
| B. | 0.7 m/sec² |
| C. | 1 m/sec² |
| D. | 1 cm/sec² |
| Answer» C. 1 m/sec² | |
| 336. |
A satellite is said to move in a synchronous orbit if it moves at an altitude of 36, 000 km with a maximum velocity of about |
| A. | 7000 km per hour |
| B. | 8000 km per hour |
| C. | 9000 km per hour |
| D. | 11, 000 km per hour. |
| Answer» E. | |
| 337. |
A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is |
| A. | 70 m/sec. |
| B. | 75 m/sec. |
| C. | 80 m/sec. |
| D. | 90 m/sec. |
| Answer» E. | |
| 338. |
A rigid body suspended Vertically at a point and oscillating with a small amplitude under the action of the force of gravity, is called |
| A. | simple pendulum |
| B. | compour pendulum |
| C. | Second's pendulum |
| D. | none of these. |
| Answer» C. Second's pendulum | |
| 339. |
The product of mass and velocity of a moving a body, is called |
| A. | moment |
| B. | momentum |
| C. | power |
| D. | impulse. |
| Answer» C. power | |
| 340. |
The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is |
| A. | 437.5 cm⁴ |
| B. | 337.5 cm⁴ |
| C. | 237.5 cm⁴ |
| D. | 137.5 cm⁴ |
| Answer» E. | |
| 341. |
The reaction at the support A of the beam shown in below figure is |
| A. | 2 t |
| B. | 5.8 t |
| C. | 0.2 t |
| D. | 3.5 t |
| Answer» B. 5.8 t | |
| 342. |
The acceleration of a particle moving along the circumference of a circle with a uniform speed, is directed |
| A. | radially |
| B. | tangentially at that point |
| C. | away from the centre |
| D. | towards the centre. |
| Answer» C. away from the centre | |
| 343. |
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 |
| Answer» D. 3.5 m/sec | |
| 344. |
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. | |
| 345. |
Principle of Transmissibility of Forces states that, when a force acts upon a body, its effect is |
| A. | maximum if it acts at the centre of gravity of the body |
| B. | different at different points on its line of |
| C. | same at every point on its line of action |
| D. | minimum if it acts at the C.G. of the body |
| Answer» D. minimum if it acts at the C.G. of the body | |
| 346. |
Two forces of 6 Newtons and 8 Newtons which are acting at right angles to each other, will have a resultant of |
| A. | 5 Newtons |
| B. | 8 Newtons |
| C. | 10 Newtons |
| D. | 12 Newtons. |
| Answer» D. 12 Newtons. | |
| 347. |
The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator |
| A. | eastward |
| B. | northward |
| C. | westward |
| D. | southward |
| Answer» B. northward | |
| 348. |
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. ω²(l sin φ - r cos θ tan φ). | |
| 349. |
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. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 350. |
If G is the Gauge of track, v is velocity of the moving vehicle, g is the acceleration due to gravity and r is the radius of a circular path, the required super elevation is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |