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 A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by W CS / 2CE W CE / CS W CE / 2CS 2 W CE / CS W CS / 2CE W CE / CS W CE / 2CS 2 W CE / CS ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The displacement of the D-slide valve is __________ the steam lap by a distance known as lead of the valve. Equal to Greater than Less than None of these Equal to Greater than Less than None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An exact straight line motion mechanism is a All of these Hart's mechanism Peaucellier's mechanism Scott-Russell's mechanism All of these Hart's mechanism Peaucellier's mechanism Scott-Russell's mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For a kinematic chain to be considered as mechanism Two links should be fixed One link should be fixed None of the links should be fixed There is no such criterion Two links should be fixed One link should be fixed None of the links should be fixed There is no such criterion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle) [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) sinφ]/2 [(r² + R²) cosφ]/2 [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) sinφ]/2 [(r² + R²) cosφ]/2 ANSWER DOWNLOAD EXAMIANS APP
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