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You Are On Multi Choice Question Bank SET 508

25401. A smooth cylinder lying on its convex surface remains






25402. 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






25403. A satellite goes on moving along its orbit round the earth due to





25404. The phenomenon of collision of two elastic bodies takes place because bodies





25405. 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






25406. Kinetic friction may be defined as





25407. 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





25408. The centre of gravity of a homogenous body is the point at which the whole





25409. Site of fertilization in cattle is------------





25410. Centre of gravity of a thin hollow cone lies on the axis of symmmetry at a height of





25411. A ball of mass 1 kg moving with a velocity of 2 m/sec collides a stationary ball of mass 2 kg and comes to rest after impact. The velocity of the second ball after impact will be





25412. Periodic time of a particle moving with simple harmonic motion is the time taken by the particle for





25413. The reaction at the central support B of the beam ABC hinged at D shown in below figure is





25414. The motion of a bicycle wheel is





25415. 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





25416. Pick up the correct statement from the following. The kinetic energy of a body






25417. A particle moving with a simple harmonic motion, attains its maximum velocity when it passes





25418. The unit of impulse, is





25419. If l is the span of a light suspension bridge whose each cable carries total weight (w) and the central dip is y, the horizontal pull at each support, is





25420. The practical units of work, is





25421. The rate of change of displacement of a body with respect to its surrounding, is known





25422. The C.G. of a hemisphere from its base measured along the vertical radius is at a distance of





25423. The Centre of gravity of a 10 x 15 x 5 cm T section from its bottom, is






25424. For a self-locking machine, the efficiency should be





25425. When a body moves round a fixed axis, it has





25426. Power developed by a torque, is





25427. 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





25428. The unit of moments in M.K.S system, is





25429. The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator






25430. On a mass m describing a circular path of radius r, the centrifugal force





25431. In the structure shown in below figure, the member which carries zero force, is






25432. When a body falls freely under gravitational force, it possesses





25433. A rigid body suspended Vertically at a point and oscillating with a small amplitude under the action of the force of gravity, is called




25434. If a ball which is dropped from a height of 2.25 m on a smooth floor attains the height of bounce equal to 1.00 m, the coefficient of the restitution between the ball and floor, is






25435. The piston of a steam engine moves with a simple harmonic motion. The crank rotates 120 r.p.m. and the stroke length is 2 metres. The linear velocity of the piston when it is at a distance of 0.5 metre from the centre, is





25436. The frequency of oscillation on moon as compared to that on earth, will be





25437. Moment of interia of a squares of side fa about an axis through its centre of gravity, is






25438. The reaction at the support D of the continuous beam ABCD, hinged at two points shown in below figure is






25439. When a body slides down an inclined surface, the acceleration (f) of the body, is given by





25440. The velocity ratio of an inclined plane of inclination θ with horizontal for lifting a load is






25441. Pick up the incorrect statement from the following. In a simple harmonic motion





25442. The gravitational force makes a satellite go round the earth in a circular orbit, if it is projected with an initial velocity of





25443. The point about which combined motion of rotation and translation of a rigid body takes place, is known as






25444. 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





25445. A point subjected to a number of forces will be in equilibrium, if






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