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 180° and 270° 90° and 180° 45° and 225° 270° and 360° 180° and 270° 90° and 180° 45° and 225° 270° and 360° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, one method of obtaining the earlier cut-off with a simple slide valve is by increasing the angle of advance of the eccentric while the throw of the eccentric, steam lap and exhaust lap are kept constant. This method will Cause withdrawing or throttling of steam All of these Reduce length of effective stroke of piston Reduce maximum opening of port to steam Cause withdrawing or throttling of steam All of these Reduce length of effective stroke of piston Reduce maximum opening of port to steam ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Kinematic pairs are those which have two elements that Have line contact Are held together Permit relative motion Have surface contact Have line contact Are held together Permit relative motion Have surface contact 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) tanφ + cotα = b/c sinφ + sinα = b/c cosφ - sinα = c/b cotφ - cotα = c/b tanφ + cotα = b/c sinφ + sinα = b/c cosφ - sinα = c/b cotφ - cotα = c/b ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A torsional system with discs of moment of inertia I₁ and I₂ as shown in the below figure, is gear driven such that the ratio of speed of shaft B to shaft A is 'G'. Neglecting the inertia of gears, the equivalent inertia of disc on shaft B at the speed of shaft A is equal to G.I₂ I₂/G² I₂/G G².I₂ G.I₂ I₂/G² I₂/G G².I₂ 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
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