Theory of Machine In a Hartnell governor, the stiffness of the spring is given by (where S1 and S2 = Spring forces exerted on the sleeve at max. and min. radii of rotation, and h = Compression of the spring) (S₁ - S₂) / 2h (S₁ + S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h (S₁ - S₂) / 2h (S₁ + S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h 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) r (ω₁ - ω₂) 2r ω₁.ω₂.r (ω₁ + ω₂) r (ω₁ - ω₂) r (ω₁ - ω₂) 2r ω₁.ω₂.r (ω₁ + ω₂) r ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a single slider crank chain Each of the four pairs is a turning pair Three are turning pairs and one is a sliding pair Two are turning pairs and two are sliding pairs One is a turning pair and three are sliding pairs Each of the four pairs is a turning pair Three are turning pairs and one is a sliding pair Two are turning pairs and two are sliding pairs One is a turning pair and three are sliding pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be Isochronous Less sensitive More sensitive Unaffected of sensitivity Isochronous Less sensitive More sensitive Unaffected of sensitivity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine To obviate axial thrust, following gear drive is used Double helical gears having identical teeth Mutter gears Double helical gears having opposite teeth Single helical gear in which one of the teeth of helix angle a is more Double helical gears having identical teeth Mutter gears Double helical gears having opposite teeth Single helical gear in which one of the teeth of helix angle a is more ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The periodic time is given by (where ω = Angular velocity of the particle in rad/s) ω × 2π π/ω 2π/ω ω/2π ω × 2π π/ω 2π/ω ω/2π ANSWER DOWNLOAD EXAMIANS APP
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