Theory of Machine Torsional vibrations are said to occur when the particles of a body moves In a circle about its axis Parallel to its axis None of these Perpendicular to its axis In a circle about its axis Parallel to its axis None of these Perpendicular to its axis ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a simple harmonic motion, the velocity vector with respect to displacement vector Is in phase Leads by 90° Leads by 180° Lags by 90° Is in phase Leads by 90° Leads by 180° Lags by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The contact ratio is given by (Length of the path of approach)/(Circular pitch) (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) (Length of the arc of contact)/(Circular pitch) (Length of the path of approach)/(Circular pitch) (Length of the arc of approach)/cosφ (Length of path of recess)/(Circular pitch) (Length of the arc of contact)/(Circular pitch) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced primary forces in a reciprocating engine are Balanced partially Not balanced Balanced completely Balanced by secondary forces Balanced partially Not balanced Balanced completely Balanced by secondary forces 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 Forced vibration with damping Free vibration without damping Free vibration with damping Forced vibration without damping Forced vibration with damping Free vibration without damping Free vibration with damping ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is 180° and 360° 0° and 180° 0° and 90° 90° and 180° 180° and 360° 0° and 180° 0° and 90° 90° and 180° ANSWER DOWNLOAD EXAMIANS APP
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