Question 1276 Deck General

The correct answer is A) closed, opened a half turn, and then closed again. This practice helps ensure the valve seats properly when closed. Closing the valve all the way can cause the valve seat to become deformed over time, leading to leaks. Opening the valve a half turn after closing it allows the valve to resettle gently into the proper seating position. This helps maintain the integrity of the valve seat and prevents damage. The other options are incorrect because: B) inserting a locking pin is not necessary for proper valve seating, C) using a valve wrench is overkill and can over-tighten the valve, and D) closing the valve as tight as possible by hand alone may not provide enough force to properly seat the valve.