Question

Pascal’s law is not applied in

• A. a hydraulic jack.
• B. hydraulic brakes.
• C. a hydraulic press.
• D. an automiser.

Hint:

Hydraulic devices rely on Pascal’s law, while atomisers work on Bernoulli’s principle.

Answer 1

The Correct Option is D

Step 1: State Pascal’s law.
Pascal’s law states that pressure applied to an enclosed fluid is transmitted equally in all directions throughout the fluid.

Step 2: Analyze the given options.
(A) Hydraulic jack: Works on Pascal’s law to lift heavy loads using pressure transmission.
(B) Hydraulic brakes: Pressure applied at one point is transmitted equally to brake pistons.
(C) Hydraulic press: Uses Pascal’s law to multiply force.
(D) Automiser: Works on Bernoulli’s principle, not Pascal’s law.

Step 3: Conclusion.
Pascal’s law is not applied in an automiser.