Question 1 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link Mechanically formed water supply tee fittings shall be constructed by A. soldering B. brazing C. flaring D. chemically bonding Submit Answer
Question 2 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link What is the purpose of installing a check valve on each zone when piping a multi-zone heating system using multiple circulators A. To prevent cool water from flowing to other zones B. To prevent warm water from flowing backwards C. To improve the efficiency of the air scoop D. To improve the efficiency of the circulator Submit Answer
Question 3 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link A potable water system is being disinfected with a water-chlorine solution containing 50 parts per million of chlorine. The solution MUST remain in the system for A. 8 hours B. 12 hours C. 24 hours D. 36 hours Submit Answer
Question 4 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link What is the temperature rating for a sprinkler with a blue color code A. 135 to 170 degrees F B. 175 to 225 degrees F C. 250 to 300 degrees F D. 325 to 375 degrees F Submit Answer
Question 5 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link Pressure relief valves on hot water tanks MUST open before the water pressure in the tank exceeds A. 150 psi B. 180 psi C. 210 psi D. 212 psi Submit Answer