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) / h (S₁ + S₂) / h (S₁ - S₂) / 2h (S₁ + S₂) / 2h (S₁ - S₂) / h (S₁ + S₂) / h (S₁ - S₂) / 2h (S₁ + S₂) / 2h ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank) m.ω².r (sin 2θ/n) m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r sinθ m.ω².r (cos 2θ/n) m.ω².r cosθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to balance the reciprocating masses, None of these Primary forces and couples must be balanced Both (A) and (B) Secondary forces and couples must be balanced None of these Primary forces and couples must be balanced Both (A) and (B) Secondary forces and couples must be balanced ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The maximum fluctuation of energy is the Variations of energy above and below the mean resisting torque line Difference between the maximum and minimum energies Sum of the maximum and minimum energies Ratio of the mean resisting torque to the work-done per cycle Variations of energy above and below the mean resisting torque line Difference between the maximum and minimum energies Sum of the maximum and minimum energies Ratio of the mean resisting torque to the work-done per cycle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Peaucellier’s mechanism has Eight links Twelve links Four links Six links Eight links Twelve links Four links Six links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical) tanα = c/2b sinα = b/c cotα = c/2b cosα = c/b tanα = c/2b sinα = b/c cotα = c/2b cosα = c/b ANSWER DOWNLOAD EXAMIANS APP
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