Question 262Safety & Environmental - QMED70% to pass
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 _______________.
AI Explanation
The correct answer is C) on each leg of the "Y" 90°.
To utilize two hoses from a single 'wye' gate attached to a hydrant outlet, you need to open the valves on each leg of the "Y" by 90 degrees. This allows the water to flow through both hoses simultaneously, providing the necessary water pressure and volume to effectively fight the fire.
The other options are incorrect because: A) turning the valve at the base of the "Y" counter-clockwise 180° would likely shut off the water flow entirely; B) turning the valve at the base of the "Y" in either direction may not ensure that both hoses are fully open; and D) turning the valves on each leg of the "Y" 180° would be unnecessary and could potentially damage the valves.
Related Questions
#260 There is always a lower water pressure at the fire hose outlet than is found at the discharge of the pump. Which of the following reasons is the common cause of this loss in pressure? #261 Which of the following components provides a direct source of sea water for the fire main system? #263 The primary function of an automatic sprinkler system is to _______________.