Friction in inclined plane; Screw jack, Torque required to lift and lower a screw jack, efficiency of screw jack, Types of bearings, pivot, collar and conical bearing, Friction clutches, Friction clutch
Types of belt drives and velocity ratio of a belt drive, Length of open and cross belt, slip and creep, Power transmission and ratio of driving tensions, Maximum and initial Tension in a belt, Rope drives and chain drives,
Classification of gears and its nomenclature, Types of gear train mechanism, Velocity ratio Spur gear and reverted gear train, Epicyclic gear train,
Function of  governors; types of governors; further types of centrifugal governors, Porter governor, Proell Governor, Spring governor (Hartnell), Gyroscope, Gyroscopic couple, Gyroscopic stabilization