Theory of Machine Which of the following statements regarding laws governing the friction between dry surfaces are correct? The friction force is independent of me area of contact. All of these The friction force is directly proportional to the normal force. The friction force is dependent on the materials of the contact surfaces. The friction force is independent of me area of contact. All of these The friction force is directly proportional to the normal force. The friction force is dependent on the materials of the contact surfaces. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The direction of Coriolis component of acceleration is the direction Along the centripetal acceleration Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link Along perpendicular to angular velocity Along tangential acceleration Along the centripetal acceleration Of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link Along perpendicular to angular velocity Along tangential acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a vibrating system, if the actual damping coefficient is 40 N/m/s and critical damping coefficient is 420 N/m/s, then logarithmic decrement is equal to 0.2 0.8 0.6 0.4 0.2 0.8 0.6 0.4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relative velocity of B with respect to A in a rigid link AB is Parallel to AB At 45° to AB Perpendicular to AB Along AB Parallel to AB At 45° to AB Perpendicular to AB Along AB ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The method of direct and reverse cranks is used in engines for Balancing of forces and couples The control of speed fluctuations Kinematic analysis Vibration analysis Balancing of forces and couples The control of speed fluctuations Kinematic analysis Vibration analysis ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Minimum number of teeth for involute rack and pinion arrangement for pressure angle of 20° is 34 10 30 20 34 10 30 20 ANSWER DOWNLOAD EXAMIANS APP
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