Theory of Machine In S.H.M., the velocity vector w.r.t. displacement vector Leads by 180° Are in phase Leads by 90° Lags by 90° Leads by 180° Are in phase Leads by 90° Lags by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gramophones for adjusting the speed of the turntable, the following type of governor is commonly employed Wilson Hartnell governor Inertia governor Pickering governor Hartung governor Wilson Hartnell governor Inertia governor Pickering governor Hartung governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The main disadvantage of the sliding pair is that it is Both (A) and (B) above Difficult to manufacture Wears rapidly Bulky Both (A) and (B) above Difficult to manufacture Wears rapidly Bulky 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 cotφ - cotα = c/b tanφ + cotα = b/c sinφ + sinα = b/c cosφ - sinα = c/b cotφ - cotα = c/b tanφ + cotα = b/c sinφ + sinα = b/c ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O) (ω₁ - ω₂) 2r (ω₁ + ω₂) r ω₁.ω₂.r (ω₁ - ω₂) r (ω₁ - ω₂) 2r (ω₁ + ω₂) r ω₁.ω₂.r (ω₁ - ω₂) r ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to loge(x₁/x₂) x₁/x₂ log(x₁/x₂) log(x₁.x₂) loge(x₁/x₂) x₁/x₂ log(x₁/x₂) log(x₁.x₂) ANSWER DOWNLOAD EXAMIANS APP
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