Theory of Machine In Meyer's expansion valve, the main valve is driven by an eccentric having an angle of advance from 30°-40° 15°-25° 10°-15° 25°-30° 30°-40° 15°-25° 10°-15° 25°-30° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is 18.52 N-s/m 1.4 N-s/m 529.2 N-s/m 52.92 N-s/m 18.52 N-s/m 1.4 N-s/m 529.2 N-s/m 52.92 N-s/m ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The maximum value of the pressure angle in case of cam is kept as 30° 20° 10° 14° 30° 20° 10° 14° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because Resonance is caused due to the heavy mass of the rotor The shafts are rotating at very high speeds The system is unbalanced Bearing centre line coincides with the axis Resonance is caused due to the heavy mass of the rotor The shafts are rotating at very high speeds The system is unbalanced Bearing centre line coincides with the axis ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following statements regarding laws governing the friction between dry surfaces are correct? The friction force is directly proportional to the normal force. All of these The friction force is independent of me area of contact. The friction force is dependent on the materials of the contact surfaces. The friction force is directly proportional to the normal force. All of these The friction force is independent of me area of contact. The friction force is dependent on the materials of the contact surfaces. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A single degree of freedom system is given by, m × (d²x/dt²) + c × (dx/dt) + sx = F.cosω.t with usual notations. It represents Forced vibration without damping Free vibration without damping Forced vibration with damping Free vibration with damping Forced vibration without damping Free vibration without damping Forced vibration with damping Free vibration with damping ANSWER DOWNLOAD EXAMIANS APP
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