Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 3 Hz 6π Hz 3π Hz 6 Hz 3 Hz 6π Hz 3π Hz 6 Hz ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2 mm 2.22 mm 2.50 mm 3.0 mm 2 mm 2.22 mm 2.50 mm 3.0 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a four bar chain or quadric cycle chain One is a turning pair and three are sliding pairs Two are turning pairs and two are sliding pairs Each of the four pairs is a turning pair Three are turning pairs and one is a sliding pair One is a turning pair and three are sliding pairs Two are turning pairs and two are sliding pairs Each of the four pairs is a turning pair Three are turning pairs and one is a sliding pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The dynamic friction is the friction experienced by a body, when the body Is at rest None of these Is in motion Just begins to slide over the surface of the other body Is at rest None of these Is in motion Just begins to slide over the surface of the other body ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The cam follower generally used in aircraft engines is Roller follower Spherical faced follower Knife edge follower Flat faced follower Roller follower Spherical faced follower Knife edge follower Flat faced follower ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a circular arc cam with roller follower, the acceleration in any position of the lift will depend only upon Radius of circular arc, cam speed, location of centre of circular arc and roller diameter Total lift, centre of gravity of the cam and cam speed Total lift, total angle of lift, minimum radius of cam and cam speed Mass of cam follower linkage, spring stiffness and cam speed Radius of circular arc, cam speed, location of centre of circular arc and roller diameter Total lift, centre of gravity of the cam and cam speed Total lift, total angle of lift, minimum radius of cam and cam speed Mass of cam follower linkage, spring stiffness and cam speed ANSWER DOWNLOAD EXAMIANS APP
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