Firefighter Mechanical Aptitude · Question
Which principle states that when outer surfaces of a fluid flow faster, the pressure within the fluid will decrease?
Bernoulli's Principle describes the inverse relationship between the speed of a fluid and its pressure. As fluid speed increases, its static pressure decreases.
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Question: Which principle states that when outer surfaces of a fluid flow faster, the pressure within the fluid will decrease?
Answer options:
- Pascal's Principle
- Archimedes' Principle ✅ Bernoulli's Principle
- Newton's Third Law
Correct answer: Bernoulli's Principle
Explanation: Bernoulli's Principle describes the inverse relationship between the speed of a fluid and its pressure. As fluid speed increases, its static pressure decreases.
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Question explanations
- Scenario 1: Which simple machine uses a fulcrum to multiply force or change the direction of force?
- Scenario 2: If a hydraulic jack has a small piston with an area of 5 cm² and a large piston with an area of 50
- Scenario 3: Which of the following would require the MOST force to move?
- Scenario 4: A rope is tied to a heavy box. Instead of pulling the box directly, a firefighter wraps the rope a
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