Theory of Machine The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively) (1/2). μ W (r₁ + r₂) (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W (r₁ + r₂) (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W (r₁ + r₂) (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W (r₁ + r₂) (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed Decreases Increases First increases and then decreases Remain unaffected Decreases Increases First increases and then decreases Remain unaffected 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 cosθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r sinθ m.ω².r cosθ m.ω².r (cos 2θ/n) m.ω².r (sin 2θ/n) m.ω².r sinθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as Second's pendulum Compound pendulum Torsional pendulum Simple pendulum Second's pendulum Compound pendulum Torsional pendulum Simple pendulum ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Whirling speed of the shaft is the speed at which Shaft tends to vibrate in longitudinal direction Combination of transverse and longitudinal vibration occurs Torsional vibrations occur Shaft tends to vibrate vigorously in transverse direction Shaft tends to vibrate in longitudinal direction Combination of transverse and longitudinal vibration occurs Torsional vibrations occur Shaft tends to vibrate vigorously in transverse direction ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In higher pair, the relative motion is Purely sliding Combination of sliding and turning Purely rotary Purely turning Purely sliding Combination of sliding and turning Purely rotary Purely turning ANSWER DOWNLOAD EXAMIANS APP
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