FAA Aviation Mechanic General (AMG)Physics, Math and Fluid LinesEasy
An outside air temperature gauge on the ramp reads 95°F. What is this temperature expressed in degrees Celsius?
- A35°C
- B30°C
- C50°C
- D45°C
Show answer & explanationAnswer & explanation
Correct answer: A. 35°C
Using C = (F − 32) × 5/9: C = (95 − 32) × 5/9 = 63 × 5/9 = 35°C.
Why the other options are wrong
- B. Results from dividing incorrectly or misapplying the 5/9 factor.
- C. Results from using 9/5 instead of 5/9.
- D. Common error from adding instead of subtracting 32.
Temperature Conversion (F to C)
Formula used to convert Fahrenheit readings to Celsius for technical calculations.
- C = (F − 32) × 5/9
- F = (C × 9/5) + 32
- Freezing point: 32°F = 0°C
- Boiling point: 212°F = 100°C
Memory trick: Subtract 32, then multiply by 5/9 to go from F to C.