EXAMIANS
When the sleeve of a Porter governor moves upwards, the governor speed
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The unbalanced primary forces in a reciprocating engine are
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In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be
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When there is a reduction in amplitude over every cycle of vibration, then the body is said to have
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The maximum fluctuation of energy is the
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The tractive force is maximum or minimum when the angle of inclination of crank with the line of stroke (θ) is equal to
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In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line of stroke PO and rotates with uniform angular velocity at ω rad/s. The Klien's acceleration diagram for determining the acceleration of the piston P is shown by quadrilateral CQNO, if N coincides with O, then
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In multi V-belt transmission, if one of the belt is broken, we have to change the
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The secondary 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)
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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)
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