Firefighter Mechanical Aptitude · Question
A pump's gearbox uses a small input gear to drive a larger output gear. What effect does this configuration have on the output speed and torque?
When a smaller gear drives a larger gear, the output speed decreases, but the output torque increases.
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Question: A pump's gearbox uses a small input gear to drive a larger output gear. What effect does this configuration have on the output speed and torque?
Answer options:
- Increased speed, decreased torque ✅ Decreased speed, increased torque
- Increased speed, increased torque
- Decreased speed, decreased torque
Correct answer: Decreased speed, increased torque
Explanation: When a smaller gear drives a larger gear, the output speed decreases, but the output torque increases.
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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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