Applied Mechanics and Graphic Statics The centre of gravity of a trapezoidal dam section whose top width is a, bottom width is band the vertical side is a, from its vertical face is (a² + ab + b²)/3 (a + b) (b² + bc + c²)/3 (b + c) None of these (a² + ab + c²)/3 (a + c) (a² + ab + b²)/3 (a + b) (b² + bc + c²)/3 (b + c) None of these (a² + ab + c²)/3 (a + c) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Instantaneous center is at infinity when the angular velocity is Constant Zero Minimum Maximum Constant Zero Minimum Maximum ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics To double the period of oscillation of a simple pendulum The mass of its bob should be doubled Its length should be doubled Its length should be quadrupled The mass of its bob should be quadrupled The mass of its bob should be doubled Its length should be doubled Its length should be quadrupled The mass of its bob should be quadrupled ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If a particle is projected inside a horizontal tunnel which is 554 cm high with a velocity of 60 m per sec, the angle of projection for maximum range, is 8° 11° 9° 10° 8° 11° 9° 10° ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics 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 1 sec ½ sec 1.2 sec 1.5 sec 1 sec ½ sec 1.2 sec 1.5 sec ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A ball of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/sec hits an identical stationary ball ‘B’ on the table. If the impact is perfectly plastic, the velocity of the ball ‘B’ just after impact would be Zero 5 m/sec None of these 10 m/sec Zero 5 m/sec None of these 10 m/sec ANSWER DOWNLOAD EXAMIANS APP
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