What type of relay is used to detect the presence of an object in a specific area?
A. Reed relay
B. Proximity relay
C. Mercury wetted relay
D. Latching relay
Answer:B
What type of relay is used to detect the presence of an object in a specific area?
A. Reed relay B. Proximity relay C. Mercury wetted relay D. Latching relay
Explanation: A proximity relay is a type of sensor that is used to detect the presence of an object in a specific area. It uses electromagnetic or ultrasonic waves to detect the presence of an object, and can be used in a variety of applications, such as industrial automation, robotics, and security systems.