Applied Mechanics and Graphic Statics 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 19° 48' 17° 48' 20° 48' 18° 48' 19° 48' 17° 48' 20° 48' 18° 48' ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics For a self-locking machine, the efficiency should be Less than 60% None of these 0.5 More than 50% Less than 60% None of these 0.5 More than 50% ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A cube on a smooth horizontal surface Cannot be in unstable equilibrium Cannot be in neutral equilibrium Cannot be in stable equilibrium Can be in any of these states Cannot be in unstable equilibrium Cannot be in neutral equilibrium Cannot be in stable equilibrium Can be in any of these states ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics 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 70 m/sec 80 m/sec 75 m/sec 90 m/sec 70 m/sec 80 m/sec 75 m/sec 90 m/sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be 20 m/sec 40 m/sec 50 m/sec 30 m/sec 20 m/sec 40 m/sec 50 m/sec 30 m/sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics 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 Imaginary work Negative work Virtual work Zero work Imaginary work Negative work Virtual work Zero work ANSWER DOWNLOAD EXAMIANS APP
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