(r₁² - r₂²)/(r₁ - r₂)

(r₁² - r₂²)/(r₁ + r₂)

(r₁³ - r₂³)/(r₁² - r₂²)

(r₁³ - r₂³)/(r₁ - r₂)

**If some links are connected such that motion between them can take place in more than one direction,…****The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating…****A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of…****For an involute gear, the ratio of base circle radius and pitch circle radius is equal to****An exact straight line motion mechanism is a****The example of lower pair is****Ball and a Socket forms a****A system in dynamic balance implies that****A combination of kinematic pairs, joined in such a way that the relative motion between the links is…****The distance by which the __________ of the D-slide valve overlaps the steam port is called exhaust…****In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line…****A Hartnell governor is a****When the axes of the first and last wheels are coaxial, then the train is known as****Angle of ascent of cam is defined as the angle****In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation…****In a spring controlled governor, when the controlling force ________ as the radius of rotation increases,…****The size of cam depends upon****In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation…****Typewriter constitutes****In a hydrodynamic journal bearing, there is****In a mechanism, usually one link is fixed. If the fixed link is changed in a kinematic chain, then relative…****The height of a Watt's governor (in metres) is equal to (where N = Speed of the arm and ball about the…****Klein's construction gives a graphic construction for****Which of the following statement is wrong?****The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass.…****If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency…****The relation between the controlling force (Fc) and radius of rotation (r) for a stable spring controlled…****3.The retardation of a flat faced follower when it has contact at the apex of the nose of a circular…****A universal joint is an example of****The condition for correct steering of a Davis steering gear is (where α = Angle of inclination…**