Theory of Machine Instantaneous center of rotation of a link in a four bar mechanism lies on Left side pivot of this link A point obtained by intersection on extending adjoining links Right side pivot of this link Can’t occur Left side pivot of this link A point obtained by intersection on extending adjoining links Right side pivot of this link Can’t occur ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Peaucellier’s mechanism has Four links Eight links Twelve links Six links Four links Eight links Twelve links Six links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A chain comprises of 5 links having 5 joints. Is it kinematic chain? It is a marginal case Yes No Data are insufficient to determine it It is a marginal case Yes No Data are insufficient to determine it 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 swaying couple is maximum or minimum when the angle of inclination of the crank to the line of stroke (θ) is equal to 270° and 360° 90° and 180° 45° and 225° 180° and 270° 270° and 360° 90° and 180° 45° and 225° 180° and 270° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Pulley in a belt drive acts as Turning pair Rolling pair Cylindrical pair Sliding pair Turning pair Rolling pair Cylindrical pair Sliding pair ANSWER DOWNLOAD EXAMIANS APP
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