Firefighter Mechanical Aptitude · Question
To lift a heavy load with the least possible effort using a pulley system, you would ideally want:
Movable pulleys provide mechanical advantage by distributing the load among multiple rope segments. More movable pulleys mean more supporting rope segments, whi
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Question: To lift a heavy load with the least possible effort using a pulley system, you would ideally want:
Answer options: ✅ More movable pulleys.
- Only fixed pulleys.
- To increase the weight of the pulleys.
- To decrease the length of the rope.
Correct answer: More movable pulleys.
Explanation: Movable pulleys provide mechanical advantage by distributing the load among multiple rope segments. More movable pulleys mean more supporting rope segments, which in turn means less effort is required to lift the load.
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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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