General Science • PhysicsEasy
What is the principle behind the working of hydraulic lifts and hydraulic brakes used in automobiles?
A. Archimedes' principle
B. Pascal's law✓ Correct Answer
C. Bernoulli's principle
D. Stokes' law
💡 Solution & Explanation
Pascal's law dictates that pressure applied to an enclosed static fluid is transmitted undiminished in every direction, which forms the operational basis of hydraulic lifts and braking systems. Archimedes principle and Bernoulli principle apply to buoyancy and fluid flow dynamics rather than closed hydraulic transmission. Basic physics principles applied in machinery are common in general science questions.
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