What application often requires a valve to be remotely operated from a control station, where the valve itself is operated by an electric, pneumatic, or hydraulic motor?

Correct Answer: Option B — A large valve that is routinely operated during plant operations.

Large valves requiring frequent operation are typically fitted with remote actuators to reduce crew fatigue and improve response times. These systems utilize electric, pneumatic, or hydraulic motors to handle the high mechanical forces required to seat and unseat large valve discs during routine plant operations.