Theory of Machine In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever) (r₁ + r₂) (y/x) (r₁ - r₂) (y/x) (r₁ - r₂) (x/y) (r₁ + r₂) (x/y) (r₁ + r₂) (y/x) (r₁ - r₂) (y/x) (r₁ - r₂) (x/y) (r₁ + r₂) (x/y) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A body having moment of inertia o:m2 is rotating at 210 RPM and r with another body at rest having I 40 kg m2. The resultant speed after ing will be 100 RPM 80 RPM data are insufficient 90 RPM 100 RPM 80 RPM data are insufficient 90 RPM ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The critical speed of a shaft in revolution per second is __________ as that of natural frequency of transverse vibration. Same Different Unpredictable None of these Same Different Unpredictable None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped. Equal Complex conjugate None of these Real Equal Complex conjugate None of these Real ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, one method of obtaining the earlier cut-off with a simple slide valve is by increasing the angle of advance of the eccentric while the throw of the eccentric, steam lap and exhaust lap are kept constant. This method will Reduce maximum opening of port to steam All of these Cause withdrawing or throttling of steam Reduce length of effective stroke of piston Reduce maximum opening of port to steam All of these Cause withdrawing or throttling of steam Reduce length of effective stroke of piston ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, the amplitude of vibration Decreases linearly with time Increases linearly with time Decreases exponentially with time Increases exponentially with time Decreases linearly with time Increases linearly with time Decreases exponentially with time Increases exponentially with time ANSWER DOWNLOAD EXAMIANS APP
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