Final answer:
In automotive technology, downshifting is necessary in two special conditions, such as descending a steep hill and preparing for a pass or acceleration.
Step-by-step explanation:
Conditions for Downshifting in Automotive Technology
When driving a manual transmission vehicle, there are two special conditions where downshifting is necessary:
- Descending a steep hill: When going downhill, downshifting to a lower gear helps control the speed and prevents overheating of the brakes.
- Preparing for a pass or acceleration: Downshifting to a lower gear before attempting to pass another vehicle or accelerate quickly allows for better power and acceleration.