Theory of Machine In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is 270° 90° 0° 180° 270° 90° 0° 180° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary 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 sinθ m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r (sin 2θ/n) m.ω².r cosθ m.ω².r (cos 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is 1/24 12 1/8 4/15 1/24 12 1/8 4/15 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a kinematic chain, a quaternary joint is equivalent to Two binary joints Three binary joints One binary joint Four binary joints Two binary joints Three binary joints One binary joint Four binary joints 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 Unaffected of sensitivity More sensitive Less sensitive Isochronous Unaffected of sensitivity More sensitive Less sensitive ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A disturbing mass m₁ attached to the rotating shaft may be balanced by a single mass m₂ attached in the same plane of rotation as that of m₁, such that (where r₁ and r₂ are the radii of rotation of m₁ and m₂ respectively) m₁ m₂ = r₁ r₂ m₁ r₁ = m₂ r₂ m₁ r₂ = m₂ r₁ None of these m₁ m₂ = r₁ r₂ m₁ r₁ = m₂ r₂ m₁ r₂ = m₂ r₁ None of these ANSWER DOWNLOAD EXAMIANS APP
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