Question 119General Subjects - QMED

The correct answer is A) First move the lever to disengage the motor clutch, and then rotate the hand wheel. This is the correct procedure because remote valve operators are designed to allow for local manual control in case the motor fails. To operate the valve manually, you first need to disengage the motor clutch by moving the lever. This allows you to then rotate the hand wheel to open or close the valve as needed. Rotating the hand wheel without first disengaging the clutch would not allow you to manually control the valve. The other options are incorrect because B) just rotating the hand wheel would not work without first disengaging the clutch, C) engaging the clutch would prevent manual control, and D) is incorrect as remote valve operators are typically equipped with a local hand wheel for this purpose.