Question

The working of hydraulic lift is based on the principle of

• A. Bernouli
• B. Toricelli's law
• C. Pascal's law
• D. Magnus effect
• E. Stoke's law

Answer 1

The Correct Option is C

Hydraulic lifts operate on the basis of Pascal’s law, which states that the pressure exerted on an enclosed fluid is transmitted undiminished to all portions of the fluid and to the walls of its container. In the case of a hydraulic lift, a small force applied on a smaller piston generates a larger force on a larger piston, lifting the load. Pascal's law is fundamental to the design and operation of hydraulic systems, like lifts and presses.

The correct option is (C) : Pascal's law

Answer 2

A hydraulic lift works on the principle of transmission of pressure in a confined fluid.  

According to Pascal's law: 
"When pressure is applied to a confined fluid, the pressure is transmitted equally in all directions." 

In a hydraulic lift, a small force applied on a smaller piston creates a pressure that is transmitted through the fluid to a larger piston, producing a larger force capable of lifting heavy loads. 

Correct answer: Pascal's law