Hydraulic lifts and hydraulic breaks are based onSelect an answerAArchimedes PrincipleBPascal’s LawCBernoulli’s principleDNone

Step 1: Break Down the Problem

The question is asking which principle hydraulic lifts and hydraulic brakes are based upon. Here, we need to assess the options provided to determine the correct answer.

Step 2: Relevant Concepts

1. Archimedes Principle: This principle deals with buoyancy and the upward force exerted on an object submerged in fluid.
2. Pascal’s Law: This law states that when pressure is applied to a confined fluid, the pressure change is transmitted equally throughout the fluid in all directions.
3. Bernoulli’s Principle: This principle relates to the behavior of fluid dynamics and states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or potential energy.
4. None: Refers to the absence of any applicable principle.

Step 3: Analysis and Detail

• Hydraulic Lifts: These devices operate using hydraulic fluid and apply Pascal's Law; when a small force is applied to a fluid in a confined space, it results in an amplified force that can lift heavy objects.
• Hydraulic Brakes: Similarly, hydraulic brakes work on the same principle; when the brake pedal is pushed, it exerts pressure on brake fluid, which translates this pressure to the brake pads to stop the vehicle.

Step 4: Verify and Summarize

Based on the principles analyzed, both hydraulic lifts and hydraulic brakes rely on the same fundamental principle of pressure transmission in fluids which is articulated by Pascal’s Law.

Final Answer

B. Pascal’s Law