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 Free vibration without damping Forced vibration without damping Free vibration with damping Forced vibration with damping Free vibration without damping Forced vibration without damping Free vibration with damping Forced vibration with damping ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Higher pairs are those which have Surface contact between the two elements when in motion Elements of pairs not held together mechanically Two elements that permit relative motion Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically Two elements that permit relative motion Point or line contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For the same lift and same angle of ascent, a smaller base circle will give A small value of pressure angle There is no such relation with pressure angle A large value of pressure angle Something else A small value of pressure angle There is no such relation with pressure angle A large value of pressure angle Something else ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Critical damping is a function of Damping coefficient and natural frequency Mass and damping coefficient Mass and natural frequency Mass and stiffness Damping coefficient and natural frequency Mass and damping coefficient Mass and natural frequency Mass and stiffness ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because The shafts are rotating at very high speeds Bearing centre line coincides with the axis The system is unbalanced Resonance is caused due to the heavy mass of the rotor The shafts are rotating at very high speeds Bearing centre line coincides with the axis The system is unbalanced Resonance is caused due to the heavy mass of the rotor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following would constitute a link? Piston, piston rod and cross head Piston rod and cross head Piston, crank pin and crank shaft Piston and piston rod Piston, piston rod and cross head Piston rod and cross head Piston, crank pin and crank shaft Piston and piston rod ANSWER DOWNLOAD EXAMIANS APP
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