Theory of Machine Flexible coupling is used because It is easy to engage and disengage It is easy to disassemble It transmits shocks gradually It prevents shock transmission and eliminates stress reversals It is easy to engage and disengage It is easy to disassemble It transmits shocks gradually It prevents shock transmission and eliminates stress reversals ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For an isochronous Hartnell governor (where r₁ and r₂ = Maximum and minimum radius of rotation of balls respectively, S₁ and S₂ = Maximum and minimum force exerted on the sleeve respectively, and M = Mass on the sleeve) (m.g + S₁)/(m.g + S₂) = r₁/r₂ S₂/S₁ = r₁/r₂ S₁/S₂ = r₁/r₂ (m.g - S₁)/(m.g - S₂) = r₂/r₁ (m.g + S₁)/(m.g + S₂) = r₁/r₂ S₂/S₁ = r₁/r₂ S₁/S₂ = r₁/r₂ (m.g - S₁)/(m.g - S₂) = r₂/r₁ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke. 4θ θ/2 θ 2θ 4θ θ/2 θ 2θ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed. Sum Product Ratio Difference Sum Product Ratio Difference ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to Two lower pairs and two additional links Two lower pairs and one additional link One lower pair and two additional links Any one of these Two lower pairs and two additional links Two lower pairs and one additional link One lower pair and two additional links Any one of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The ratio of the maximum displacement of the forced vibration to the deflection due to the static force, is known as Damping coefficient Damping factor Magnification factor Logarithmic decrement Damping coefficient Damping factor Magnification factor Logarithmic decrement ANSWER DOWNLOAD EXAMIANS APP
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