Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction) P = W tan(φ - α) P = W cos(α + φ) P = W tan(α - φ) P = W tan(α + φ) P = W tan(φ - α) P = W cos(α + φ) P = W tan(α - φ) P = W tan(α + φ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The maximum fluctuation of energy is the Variations of energy above and below the mean resisting torque line Ratio of the mean resisting torque to the work-done per cycle Sum of the maximum and minimum energies Difference between the maximum and minimum energies Variations of energy above and below the mean resisting torque line Ratio of the mean resisting torque to the work-done per cycle Sum of the maximum and minimum energies Difference between the maximum and minimum energies ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as Spiral gearing Helical gearing Bevel gearing Spur gearing Spiral gearing Helical gearing Bevel gearing Spur gearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a multiple V-belt drive, if one of the belts is broken, then we should replace None of these The broken belt and the belts on either side of it All the belts The broken belt only None of these The broken belt and the belts on either side of it All the belts The broken belt only ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be Unaffected of sensitivity More sensitive Isochronous Less sensitive Unaffected of sensitivity More sensitive Isochronous Less sensitive ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Whitworth quick return motion mechanism is formed in a slider crank chain when the Coupler link is fixed Longest link is a fixed link Smallest link is a fixed link Slider is a fixed link Coupler link is fixed Longest link is a fixed link Smallest link is a fixed link Slider is a fixed link ANSWER DOWNLOAD EXAMIANS APP
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