Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed First increases and then decreases Increases Remain unaffected Decreases First increases and then decreases Increases Remain unaffected Decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2 mm 2.50 mm 3.0 mm 2.22 mm 2 mm 2.50 mm 3.0 mm 2.22 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as Logarithmic decrement Magnification factor Critical damping ratio Damping factor Logarithmic decrement Magnification factor Critical damping ratio Damping factor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin) (1/2). I ω ωP I ω ωP (1/2).Iω² Iω² (1/2). I ω ωP I ω ωP (1/2).Iω² Iω² ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The component of the acceleration, perpendicular to the velocity of the particle, at the given instant is called Coriolis component Tangential component None of these Radial component Coriolis component Tangential component None of these Radial component ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Whitworth quick return mechanism is obtained by inversion of Five link mechanism Kinematic chain Roller cam mechanism Slider crank mechanism Five link mechanism Kinematic chain Roller cam mechanism Slider crank mechanism ANSWER DOWNLOAD EXAMIANS APP
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