Firefighter Mechanical Aptitude · Question
Using a longer wrench to loosen a tight bolt provides:
Torque = force × distance from pivot. Longer wrench arm → more torque with same applied force.
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Question: Using a longer wrench to loosen a tight bolt provides:
Answer options:
- Less torque ✅ More torque for the same effort
- No change
- More friction
Correct answer: More torque for the same effort
Explanation: Torque = force × distance from pivot. Longer wrench arm → more torque with same applied force.
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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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