The yaw rate unit is degrees per second. Which option expresses this unit correctly?

• A. Radians per second
• B. Degrees per second
• C. Degrees per minute
• D. Revolutions per minute

Answer: (B)

Yaw rate is an angular velocity—the rate at which the vehicle’s heading changes over time. When you express this in degrees per second, you’re describing how many degrees of yaw occur in one second. That matches the given requirement exactly: the angle unit is degrees and the time unit is seconds.

Radians per second would be correct if the angle were in radians, but the unit here specifies degrees. Degrees per minute would change the time basis to per minute, not per second. Revolutions per minute uses a full turn as the unit of angle and per minute as the time unit, which isn’t the same as degrees per second. If you ever needed to convert, degrees per second can be converted to radians per second by multiplying by pi/180.