Theory of Machine The periodic time is given by (where ω = Angular velocity of the particle in rad/s) 2π/ω π/ω ω × 2π ω/2π 2π/ω π/ω ω × 2π ω/2π ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as Helical gearing Spiral gearing Bevel gearing Spur gearing Helical gearing Spiral gearing Bevel gearing Spur gearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The driving and driven shafts connected by a Hooke's joint will have equal speeds, if cotθ = cosα sinθ = ± tanα tanθ = ± cosα cosθ = sinα cotθ = cosα sinθ = ± tanα tanθ = ± cosα cosθ = sinα ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A governor is said to be stable, if the Radius of rotation of balls increases as the equilibrium speed increases Radius of rotation of balls decreases as the equilibrium speed increases Radius of rotation of balls decreases as the equilibrium speed decreases Radius of rotation of balls increases as the equilibrium speed decreases Radius of rotation of balls increases as the equilibrium speed increases Radius of rotation of balls decreases as the equilibrium speed increases Radius of rotation of balls decreases as the equilibrium speed decreases Radius of rotation of balls increases as the equilibrium speed decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has an attached disc at the centre of its length. The disc has its centre of gravity located at a distance of 2 mm from the axis of the shaft. When the shaft is allowed to vibrate in its natural bow-shaped mode, it has a frequency of vibration of 10 rad/s. When the shaft is rotated at 300 r.p.m., it will whirl with a radius of 2.22 mm 2.50 mm 2 mm 3.0 mm 2.22 mm 2.50 mm 2 mm 3.0 mm ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a mechanism, the fixed instantaneous centers are those centers which Remain in the same place for all configurations of the mechanism Moves as the mechanism moves, but joints are of permanent nature None of the listed here Vary with the configuration of the mechanism Remain in the same place for all configurations of the mechanism Moves as the mechanism moves, but joints are of permanent nature None of the listed here Vary with the configuration of the mechanism ANSWER DOWNLOAD EXAMIANS APP
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