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What is the principle behind the operation of a hydraulic lift? (2019)

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Question: What is the principle behind the operation of a hydraulic lift? (2019)

Options:

  1. Bernoulli\'s principle
  2. Archimedes\' principle
  3. Pascal\'s law
  4. Newton\'s law

Correct Answer: Pascal\'s law

Exam Year: 2019

Solution: 

A hydraulic lift operates based on Pascal\'s law, which states that pressure applied to a confined fluid is transmitted undiminished in all directions.

What is the principle behind the operation of a hydraulic lift? (2019)

Practice Questions

Q1
What is the principle behind the operation of a hydraulic lift? (2019)
  1. Bernoulli's principle
  2. Archimedes' principle
  3. Pascal's law
  4. Newton's law

Questions & Step-by-Step Solutions

What is the principle behind the operation of a hydraulic lift? (2019)
  • Step 1: Understand that a hydraulic lift uses fluid (usually oil) to lift heavy objects.
  • Step 2: Learn about Pascal's law, which says that when you apply pressure to a fluid in a closed system, that pressure is spread evenly throughout the fluid.
  • Step 3: When you push down on one side of the hydraulic lift, the pressure from your push is transmitted through the fluid.
  • Step 4: This pressure pushes up on the other side of the lift, lifting the heavy object.
  • Step 5: The amount of force you can lift depends on the size of the lift's cylinders; larger cylinders can lift heavier objects.
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