Firefighter Mechanical Aptitude · Question
Two identical bulbs in series compared to in parallel:
Series: voltage divides → dimmer. Parallel: each bulb gets full source voltage → brighter (each).
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Question: Two identical bulbs in series compared to in parallel:
Answer options:
- Series is brighter ✅ Parallel is brighter (each gets full voltage)
- Same brightness
- Bulbs don't light
Correct answer: Parallel is brighter (each gets full voltage)
Explanation: Series: voltage divides → dimmer. Parallel: each bulb gets full source voltage → brighter (each).
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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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