Theory of Machine The rotating shafts tend to vibrate violently at whirling speeds because Bearing centre line coincides with the axis The shafts are rotating at very high speeds Resonance is caused due to the heavy mass of the rotor The system is unbalanced Bearing centre line coincides with the axis The shafts are rotating at very high speeds Resonance is caused due to the heavy mass of the rotor The system is unbalanced ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine According to Kennedy's theorem, if three bodies have plane motions, their instantaneous centers lie on A. A triangle Two lines A point A straight line A triangle Two lines A point A straight line A triangle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a higher pair? Screw pair Turning pair Sliding pair Belt and pulley Screw pair Turning pair Sliding pair Belt and pulley ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A point on a link connecting double slider crank chain traces a Hyperbola Parabola Ellipse Circle Hyperbola Parabola Ellipse Circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of sliding of meshing gear teeth is (Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point) (ω₁/ω₂) y (ω₁ + ω₂)/y (ω₁ + ω₂) y (ω₁ × ω₂) y (ω₁/ω₂) y (ω₁ + ω₂)/y (ω₁ + ω₂) y (ω₁ × ω₂) y ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves upwards, the governor speed Decreases Remain unaffected First increases and then decreases Increases Decreases Remain unaffected First increases and then decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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