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 4.5 cm 5.0 cm 5.5 cm 5.25 cm TRUE ANSWER : ? YOUR ANSWER : ?
The maximum displacement of a particle executing S.H.M. corresponds to Minimum kinetic energy and minimum potential energy Zero potential energy and maximum kinetic energy Zero kinetic energy and maximum potential energy Maximum kinetic energy and maximum potential energy TRUE ANSWER : ? YOUR ANSWER : ?
A 49 kg lady stands on a spring scale in an elevator. During the first 5 sec, starting from rest, the scale reads 69 kg. The velocity of the elevator will be 25 m/sec 15 m/sec 20 m/sec 10 m/sec TRUE ANSWER : ? YOUR ANSWER : ?
Williot-Mohr diagram is used to determine deflection in Any type of structure Rigid frames only Beam only Trusses only TRUE ANSWER : ? YOUR ANSWER : ?
A satellite goes on moving along its orbit round the earth due to Centripetal force Centrifugal force None of these Gravitational force TRUE ANSWER : ? YOUR ANSWER : ?
Two shots fired simultaneously from the top and bottom of a vertical tower with elevations of 30° and 45° respectively strike a target simultaneously. If horizontal distance of the target from the tower is 1000 m, the height of the tower is 425 m 350 m 375 m 400 m TRUE ANSWER : ? YOUR ANSWER : ?
The member forces in a statically in determinate truss Can be obtained by graphic statics Cannot be obtained by graphic statics Can be obtained by graphic statics by trial and error May be obtained by graphic statics TRUE ANSWER : ? YOUR ANSWER : ?
A rigid body is in a stable equilibrium if the application of any force Tends to lower the CG of the body None of above Can raise the CG of the body but cannot lower it Neither raises nor lowers the CG of the body TRUE ANSWER : ? YOUR ANSWER : ?
A sphere is resting on two planes BA and BC which are inclined at 45° and 60° respectively with the horizontal. The reaction on the plane BA will be More than that of BC Equal to that on BC Less than that on BC None of these TRUE ANSWER : ? YOUR ANSWER : ?
Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of One-third of the total height above base None of these One-half of the total height above base One-fourth of the total height above base TRUE ANSWER : ? YOUR ANSWER : ?