Firefighter Mechanical Aptitude · Question
To increase the pressure exerted by a given force, which of the following actions should be taken?
Pressure is inversely proportional to area (P = F/A). Therefore, decreasing the area will increase the pressure for a given force.
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Question: To increase the pressure exerted by a given force, which of the following actions should be taken?
Answer options:
- Increase the area over which the force is applied. ✅ Decrease the area over which the force is applied.
- Increase the mass of the object.
- Reduce the force applied.
Correct answer: Decrease the area over which the force is applied.
Explanation: Pressure is inversely proportional to area (P = F/A). Therefore, decreasing the area will increase the pressure for a given force.
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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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