(S₁ + S₂)/h

(S₁ - S₂)/h

(S₁ + S₂)/2h

(S₁ - S₂)/2h

**A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation…****The instantaneous centres which vary with the configuration of mechanism are called****The two elements of a pair are said to form a _________ when they permit relative motion between them.****The face of the tooth is the****When the axes of the first and last wheels are coaxial, then the train is known as****The velocity of the belt for maximum power is (where m = Mass of the belt in kg per metre length)****In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line…****Torsional vibrations are said to occur when the particles of a body moves****The Ackerman steering gear mechanism is preferred to the Davis steering gear mechanism, because****The minimum number of teeth on the pinion which will mesh with any gear without interference for 20°…****Ball and a Socket forms a****The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating…****In an open pair, the two elements of a pair****Two systems shall be dynamically equivalent when****In which of the following type of gear train the first gear and the last gear are co-axial.****The velocity of sliding __________ the distance of the point of contact from the pitch point.****There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20,…****The natural frequency of free transverse vibrations due to a point load acting over a simply supported…****The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency…****The method of obtaining different mechanisms by fixing in turn different links in a kinematic chain,…****Which of the following mechanism is an approximate straight line motion mechanism?****The maximum fluctuation of energy is the****The absolute acceleration of any point P in a link about center of rotation O is****Which of the following would constitute a link?****In a four stroke I.C. engine, the turning moment during the compression stroke is****To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting,…****In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is Constant, then****In its simplest form, a cam mechanism consists of following number of links****Oldhams coupling is an inversion of the kinematic chain used in****The fundamental equation for correct steering is (where φ and α = Angle through which the…**