Theory of Machine The total number of instantaneous centers for a mechanism consisting of n links are n(n - 1)/2 n - 1 n/2 n n(n - 1)/2 n - 1 n/2 n ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A disc is a spinning with an angular velocity ω rad/s about the axis of spin. The couple applied to the disc causing precession will be (where I = Mass moment of inertia of the disc, and ωP = Angular velocity of precession of the axis of spin) Iω² I ω ωP (1/2).Iω² (1/2). I ω ωP Iω² I ω ωP (1/2).Iω² (1/2). I ω ωP 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 2.22 mm 2.50 mm 2 mm 3.0 mm 2.22 mm 2.50 mm 2 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Efficiency of a screw jack is given by tan (α - φ)/tanα tanα/tan (α - φ) tanα/tan (α +φ) tan (α + φ)/tanα tan (α - φ)/tanα tanα/tan (α - φ) tanα/tan (α +φ) tan (α + φ)/tanα ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines The algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero None of these Both (A) and (B) The algebraic sum of the primary forces must be equal to zero The algebraic sum of the couples about any point in the plane of the primary forces must be equal to zero None of these Both (A) and (B) The algebraic sum of the primary forces must be equal to zero 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
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