In addition to analog, digital, mechanical, and pneumatic, which form is commonly used for power-plant equipment control?

The correct answer is electrical, as power-plant equipment control extensively relies on electrical systems for operation and automation. Electrical control systems are essential for managing various plant operations, including regulating temperature, pressure, flow rates, and other critical parameters necessary for efficient plant performance. This method allows for precise and rapid responses to changes in operating conditions, enhancing safety and efficiency.

Electrical control systems can integrate with various sensors and actuators, enabling real-time monitoring and adjustments. This capability is essential in modern power plants where automation plays a significant role in maintaining optimal performance and compliance with regulations.

Other forms of control, such as analog, digital, mechanical, and pneumatic, also have their applications, but electrical systems stand out for their versatility and ability to handle complex control scenarios in power plants. Manual control, while still in use for some tasks, lacks the efficiency and accuracy of electrical control, particularly in large-scale operations.