Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Peaucellier’s mechanism Grasshopper mechanism Robert’s mechanism Watt’s mechanism Peaucellier’s mechanism Grasshopper mechanism Robert’s mechanism Watt’s mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A) vBA × AB v²BA vBA /AB v²BA /AB vBA × AB v²BA vBA /AB v²BA /AB ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of lower pair is Straight line motion mechanisms Automobile steering gear Shaft revolving in a bearing All of these Straight line motion mechanisms Automobile steering gear Shaft revolving in a bearing All of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The acceleration of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by ω² R cosθ ω² r₁ sinθ ω² (R - r₁) cosθ ω² (R - r₁) sinθ ω² R cosθ ω² r₁ sinθ ω² (R - r₁) cosθ ω² (R - r₁) sinθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a truncated conical pivot bearing, considering uniform wear, is (1/2). μ W cosec α (r₁ + r₂) (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3).μ W cosec α (r₁ + r₂) (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W cosec α (r₁ + r₂) (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3).μ W cosec α (r₁ + r₂) (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called Addendum circle Pitch circle Dedendum circle Clearance circle Addendum circle Pitch circle Dedendum circle Clearance circle ANSWER DOWNLOAD EXAMIANS APP
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