(1 - sinφ)/(1 + sinφ)

(1 + sinφ)/(1 - sinφ)

(1 - tanφ)/(1 + tanφ)

(1 + tanφ)/(1 - tanφ)

**The contact ratio is the ratio of****Pitch point of a cam is****The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given…****A point on a link connecting double slider crank chain traces a****In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line…****In which of the following type of gear train the first gear and the last gear are co-axial.****When the relation between the controlling force (Fc) and radius of rotation (r) for a spring controlled…****The type of gears used to connect two non parallel and non intersecting shafts is****The centrifugal tension in belts****A universal joint is an example of****The component of the acceleration, perpendicular to the velocity of the particle, at the given instant…****When two pulleys of different diameters are connected by means of an open belt, the angle of contact…****The number of links and instantaneous centers in a reciprocating engine mechanism are****In involute gears, the pressure angle is****The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω…****The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where…****A single degree of freedom system is given by, m × (d²x/dt²) + c × (dx/dt) + sx…****The minimum force required to slide a body of weight W on a rough horizontal plane is****A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance…****Sense of tangential acceleration of a link****The Bifilar suspension method is used to determine****A spring controlled governor is said to be isochronous when the controlling force****The partial balancing of reciprocating parts in locomotives produces****In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line…****The displacement of a flat faced follower when it has contact with the flank of a circular arc cam,…****A spring controlled governor is said to be unstable when the controlling force****The coefficient of fluctuation of speed is __________ of maximum fluctuation of speed and the mean speed.****The steering of a ship means****Creep in belt drive is due to****Crowning on pulleys helps**