Theory of Machine In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever) (r₁ + r₂) (y/x) (r₁ + r₂) (x/y) (r₁ - r₂) (y/x) (r₁ - r₂) (x/y) (r₁ + r₂) (y/x) (r₁ + r₂) (x/y) (r₁ - r₂) (y/x) (r₁ - r₂) (x/y) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves upwards, the governor speed Increases First increases and then decreases Remain unaffected Decreases Increases First increases and then decreases Remain unaffected Decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a lower pair? Piston and cylinder Both (A) and (B) above Ball and socket i Cam and follower Piston and cylinder Both (A) and (B) above Ball and socket i Cam and follower ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Efficiency of a screw jack is given by tan (α - φ)/tanα 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) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When there is a reduction in amplitude over every cycle of vibration, then the body is said to have Under damped vibration Forced vibration Free vibration Damped vibration Under damped vibration Forced vibration Free vibration Damped vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction) P = W cos(α + φ) P = W tan(α + φ) P = W tan(α - φ) P = W tan(φ - α) P = W cos(α + φ) P = W tan(α + φ) P = W tan(α - φ) P = W tan(φ - α) ANSWER DOWNLOAD EXAMIANS APP
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