What is the term used to identify the speed change in Segment 3?

• A. Speed ramp-down
• B. Speed ramp-up
• C. Constant speed
• D. Stop

Answer: (A)

During a speed profile, changes in velocity are described as ramps. If Segment 3 shows the speed decreasing over time, the appropriate term is ramp-down. This reflects a deliberate, gradual deceleration rather than an abrupt stop, which helps limit torque shocks and electrical transients in the drive. The negative slope on a speed-vs-time view signals that the velocity is dropping, consistent with a ramp-down. If speed were increasing, it would be ramp-up; if speed stayed the same, there would be no ramp; and stopping is the state reached after decelerating, not the description of the changing segment itself. So, ramp-down best identifies the speed change in Segment 3.