Which statement correctly matches the gearbox shift range?

Which statement correctly matches the gearbox shift range?

• A. 65-75% is the gearbox shift range.
• B. 60-70% is the gearbox shift range.
• C. 70-80% is the gearbox shift range.
• D. 75-85% is the gearbox shift range.

Answer: (A)

The concept here is that the gearbox shift range is the range of engine load (expressed as a percentage) at which a shift should happen. About 65–75% represents a mid-high throttle window where there’s enough torque to justify moving to the next gear, while keeping engine RPM in a productive, smooth zone. Shift decisions aim to balance quick response with efficiency, avoiding lugging the engine at too low a load and avoiding unnecessary high RPMs at too high a load. The other ranges would tend to shift too early or too late for typical operating needs, making 65–75% the best match for a clean, balanced gear change.

The concept here is that the gearbox shift range is the range of engine load (expressed as a percentage) at which a shift should happen. About 65–75% represents a mid-high throttle window where there’s enough torque to justify moving to the next gear, while keeping engine RPM in a productive, smooth zone. Shift decisions aim to balance quick response with efficiency, avoiding lugging the engine at too low a load and avoiding unnecessary high RPMs at too high a load. The other ranges would tend to shift too early or too late for typical operating needs, making 65–75% the best match for a clean, balanced gear change.