Which statement best describes pneumatic and electric actuators in control valves and a scenario where each is preferred?

• A. Pneumatic actuators operate with water pressure and are more expensive.
• B. Pneumatic actuators use compressed air and are simpler; Electric actuators use motors and provide precise positioning.
• C. Pneumatic actuators always offer tighter control than electric.
• D. Pneumatic actuators are never used in explosion-prone environments.

Answer: (B)