While fighting a fire, in order to utilize two hoses from a single 'wye' gate attached to a hydrant outlet, you need only turn the valve handle __________.

Correct Answer: Option C — on each leg of the "Y" 90°

Wye gates feature quarter-turn ball valves on each discharge leg. Rotating the handle 90 degrees aligns the internal port with the hose connection, fully opening the fluid path, whereas a 180-degree rotation is completely unnecessary and excessive.