Topic: Mechatronics and Robotics
Which of the following actuators is most suitable for simple binary (on-off) control applications such as door locks?
- A. Stepper motor
- B. Solenoid actuator
- C. Proportional hydraulic actuator
- D. Shape Memory Alloy (SMA) actuator
Answer: B. Solenoid actuator
Explanation: Solenoid actuators operate electromagnetically to provide quick, discrete two-position linear motion (push/pull or on/off). This makes them inherently perfectly suited for simple binary applications like engaging or disengaging a door lock.