Theory of Machine In a rigid link OA, velocity of 'A' w.r.t. 'O' will be At 45° to OA Along AO Parallel to OA Perpendicular to OA At 45° to OA Along AO Parallel to OA Perpendicular to OA ANSWER DOWNLOAD EXAMIANS APP
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 = 45° + φ/2 α = 90° + φ α = 90° - φ α = 45° - φ/2 α = 45° + φ/2 α = 90° + φ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose) ω² × OQ sinθ ω² × OQ cosθ ω² × OQ ω² × OQ tanθ ω² × OQ sinθ ω² × OQ cosθ ω² × OQ ω² × OQ tanθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Kinematic pairs are those which have two elements that Have line contact Are held together Permit relative motion Have surface contact Have line contact Are held together Permit relative motion Have surface contact ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Klein's diagram is useful to find Acceleration of various parts Angular acceleration of various parts Velocity of various parts Displacement of various parts Acceleration of various parts Angular acceleration of various parts Velocity of various parts Displacement of various parts ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is 90° and 180° 0° and 180° 0° and 90° 180° and 360° 90° and 180° 0° and 180° 0° and 90° 180° and 360° ANSWER DOWNLOAD EXAMIANS APP
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