Firefighter Mechanical Aptitude · Question
A block-and-tackle with 4 supporting rope segments lifts 400 N. Effort required (ignoring friction):
MA = number of supporting rope segments = 4. Effort = 400 / 4 = 100 N.
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Question: A block-and-tackle with 4 supporting rope segments lifts 400 N. Effort required (ignoring friction):
Answer options: ✅ 100 N
- 200 N
- 400 N
- 1600 N
Correct answer: 100 N
Explanation: MA = number of supporting rope segments = 4. Effort = 400 / 4 = 100 N.
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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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