Q. The vertical reaction at the support A of the structure shown in below figure, is

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Q. Maximum efficiency of a screw jack for the angle of friction φ, is

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Q. The reaction at the support A of the beam shown in below figure is

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Q. u1 and u2 are the velocities of approach of two moving bodies in the same direction and their corresponding velocities of separation are v1 and v2. As per Newton's law of collision of elastic bodies, the coefficient of restitution (e) is given by

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Q. If α and u are the angle of projection and initial velocity of a projectile respectively, the horizontal range of the projectile, is

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Q. The ratio of the reactions RA and RB of a simply supported beam shown in below figure is

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Q. The distance of the c.g. of a semi-circular arc of radius r from its diameter along the radius of symmetry, is

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Q. 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

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Q. M.I. of a thin ring (external diameter D, internal diameter d) about an axis perpendicular to the plane of the ring, is

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Q. Pick up the correct statement from the following for the structure shown in below figure.

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Q. When a body of mass M1 is hanging freely and an other of mass M2 lying on a smooth inclined plane(α) are connected by a light indextensible string passing over a smooth pulley, the acceleration of the body of mass M1, will be given by

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Q. The velocity ratio of the differential wheel and axle is

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Q. The ends of a string weighing w/metre are attached to two points at the same horizontal level. If the central dip is very small, the horizontal tension of the string throughout is

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Q. For the system of the loads shown in below figure, the time required for the 6.6 kg load to fall on the edge, is

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Q. If two bodies of masses M1 and M2 (M1 > M2) are connected by alight inextensible string passing over a smooth pulley, the tension in the string, will be given by

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Q. For a simple pendulum, the period of one oscillation is

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Q. A body A of mass 6.6 kg which is lying on a horizontal platform 4.5 m from its edge is connected to the end of a light string whose other end is supporting a body of mass 3.2 kg as shown in below figure. If the friction between the platform and the body A is 1/3, the acceleration is

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Q. 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

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Q. Time of flight of a projectile on a horizontal plane, is

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Q. The reaction RB of the roller support B of the beam shown in below figure is

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