Firefighter Mechanical Aptitude · Question
In a hydraulic rescue tool, the small diameter of the plunger applying force, compared to the larger diameter of the pistons operating the jaws, directly demonstrates which principle?
Pascal's principle states that pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing v
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Question: In a hydraulic rescue tool, the small diameter of the plunger applying force, compared to the larger diameter of the pistons operating the jaws, directly demonstrates which principle?
Answer options:
- Bernoulli's principle
- Archimedes' principle
- Newton's Third Law ✅ Pascal's principle of fluid pressure
Correct answer: Pascal's principle of fluid pressure
Explanation: Pascal's principle states that pressure applied to an enclosed fluid is transmitted undiminished to every portion of the fluid and the walls of the containing vessel. This allows a small force on a small area to generate a large force on a larger area at the jaws.
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- 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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