Question

Which of the following helps to explain how hydraulic lifts work?

A. Archimedes' principle
B. Flow rate equation
C. Pascal's principle
D. Bernoilli's principle

Answer 1

Correct answer is C

Step-by-step explanation:

Defination of Hydrollic lift:

A hydraulic lift is an example of multiplication of force by hydraulic press, A multiplication of force can be achieved by the application of fluid pressure according to Pascal's principle.

Pascal's principal:

According to Pascal's principle in a fluid inside a closed container, a pressure change in one part of fluid is transmitted without loss to every portion of the fluid and to the walls of the container.

Answer 2

Answer : C. Pascal's principle.

Explaination : Pascal's principle (well-known as Pascal's law) states that if a closed container contains a fluid at rest, then a small change in pressure at one side of the fluid is transmitted to each and every part of the fluid and also to the walls of the container without any loss. In a hydraulic lift, we need the same mechanism to work and so we take the help of Pascal's principle.

Hence, the correct option is C. Pascal's principle.