Define deadband and hysteresis in control systems and explain why they matter in maintenance.

• A. Deadband is the input range where no output occurs; hysteresis is the difference in response when increasing vs decreasing input; both affect control accuracy and wear, and should be minimized for precise control.
• B. Deadband is the maximum output; hysteresis is the minimum input required to start movement.
• C. Deadband is a measure of system latency; hysteresis is the speed of response.
• D. Deadband and hysteresis describe electrical resistance of sensors.

Answer: (A)