(r₁ + r₂) (y/x)

(r₁ + r₂) (x/y)

(r₁ - r₂) (y/x)

(r₁ - r₂) (x/y)

**The lower pairs are __________ pairs.****The direction of Coriolis component of acceleration is the direction****A single degree of freedom system is given by, m × (d²x/dt²) + c × (dx/dt) + sx…****The Ackermann steering mechanism is preferred to the Davis type in automobiles because****For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimed stroke respectively,…****The maximum velocity of a particle moving with simple harmonic motion is****The lead screw of a lathe with nut forms a****In a steam engine, the distance by which the outer edge of the Dslide valve overlaps the steam port…****The acceleration of a particle moving with simple harmonic motion, at any instant is given by****Any point on a link connecting double slider crank chain will trace a****When the nature of contact between the elements of a pair is such that it can only slide relative to…****The velocity of the belt for maximum power is (where m = Mass of the belt in kg per metre length)****When a point at the end of a link moves with constant angular velocity, its acceleration will have****Oldham's coupling is the****Which of the following mechanism is an approximate straight line motion mechanism?****The rotating shafts tend to vibrate violently at whirling speeds because****The axis of precession is __________ to the plane in which the axis of spin is going to rotate.****The periodic time is given by (where ω = Angular velocity of the particle in rad/s)****The velocity of piston in a reciprocating steam engine is given by (where ω = Angular velocity…****Which of the following statement is correct?****In automobiles the power is transmitted from gear box to differential through****The pressure angle of a cam depends upon****When the nature of contact between the elements of a pair is such that one element can turn about the…****The contact ratio is the ratio of****In which of the following type of gear train the first gear and the last gear are co-axial.****Rectilinear motion of piston is converted into rotary by****In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and…****The number of links and instantaneous centers in a reciprocating engine mechanism are****Longitudinal vibrations are said to occur when the particles of a body moves****In a ball bearing, ball and bearing forms a**