Theory of Machine In a gear having involute teeth, the normal to the involute is a tangent to the Pitch circle Base circle Dedendum circle Addendum circle Pitch circle Base circle Dedendum circle Addendum circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Robert’s mechanism Watt’s mechanism Peaucellier’s mechanism Grasshopper mechanism Robert’s mechanism Watt’s mechanism Peaucellier’s mechanism Grasshopper mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 3.0 mm 2 mm 2.22 mm 2.50 mm 3.0 mm 2 mm 2.22 mm 2.50 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The moment on the pulley which produces rotation is called Momentum Torque Moment of momentum Inertia Momentum Torque Moment of momentum Inertia ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The fundamental equation for correct steering is (where φ and α = Angle through which the axis of the outer wheel and inner wheel turns respectively, c = Distance between the pivots of the front axles, and d = Wheel base) cosφ - sinα = c/b sinφ + sinα = b/c tanφ + cotα = b/c cotφ - cotα = c/b cosφ - sinα = c/b sinφ + sinα = b/c tanφ + cotα = b/c cotφ - cotα = c/b ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to reciprocating masses Varies in magnitude but constant in direction Varies in direction but constant in magnitude Varies in magnitude and direction both Constant in magnitude and direction both Varies in magnitude but constant in direction Varies in direction but constant in magnitude Varies in magnitude and direction both Constant in magnitude and direction both ANSWER DOWNLOAD EXAMIANS APP
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