In a chain drive, chains are passed over

A bicycle contains 60 tooth in the driving sprocket and 40 tooth in the driven, the sprocket ratio will be

If the driven sprocket rotates by 3 rotation upon giving one rotation to the driving sprocket, sprocket ratio will be

Which of the mechanical drive has higher power transmission efficiency

Which chain is most suitable for noiseless running

Chain drives required precise alignment compared to belt drives

Chain drives required frequent lubrication

Which type of chain has greater strength

Application of oil with a brush to lubricate the chain is