‘Hydraulic brakes’ and ‘Hydraulic lift’ are devices in which fluids are used for transmitting
force
momentum
pressure
power
Answer is Right!
Answer is Wrong!
This question was previously asked in
UPSC CAPF – 2011
These devices operate based on Pascal’s Principle, which states that pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing vessel. In hydraulic systems, a small force applied to a small area (piston) creates pressure in the fluid (Pressure = Force/Area). This pressure is transmitted through the fluid to a larger area (piston), resulting in a larger force output (Force = Pressure * Area). The fluid acts as the medium to transmit this pressure.