Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 90° - φ α = 45° - φ/2 α = 90° + φ α = 45° + φ/2 α = 90° - φ α = 45° - φ/2 α = 90° + φ α = 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If some links are connected such that motion between them can take place in more than one direction, it is called Incompletely constrained motion Partially constrained motion Successfully constrained motion Completely constrained motion Incompletely constrained motion Partially constrained motion Successfully constrained motion Completely constrained motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An exact straight line motion mechanism is a All of these Hart's mechanism Scott-Russell's mechanism Peaucellier's mechanism All of these Hart's mechanism Scott-Russell's mechanism Peaucellier's mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Throw of a cam is the maximum distance of the follower from Pitch circle Prime circle Root circle Base circle Pitch circle Prime circle Root circle Base circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of lower pair is Shaft revolving in a bearing Straight line motion mechanisms All of these Automobile steering gear Shaft revolving in a bearing Straight line motion mechanisms All of these Automobile steering gear ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The lower pairs are _________ pairs. Self-closed None of these Force-closed Friction closed Self-closed None of these Force-closed Friction closed ANSWER DOWNLOAD EXAMIANS APP
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