WATER HEATERS TEXAM MASTER PLUMBER ACTUAL EXAM PREP [ACTUAL EXAM 100%[] ALREADY GRADED A+

WATER HEATERS TEXAM MASTER PLUMBER ACTUAL EXAM PREP [ACTUAL EXAM 100%[] ALREADY GRADED A+ Gas piping to water heaters 1. No concealed bushings (must be __________). 2. _______ be black iron or galvanized or a mix of the two. 3. ______________ is code approved only if no sulfur (hydrogen sulfide) is in gas. 4. A ______________ is required at the base of all risers (only when water vapor is present in gas). If LP, you will have __________. 5. Connectors - minimum of __________ inch in diameter (flex or hard pipe). 6. Connectors - max is __________ feet. 7. Must have _____________ in same room & w/in _____ feet of heater. - ANS---bell reducer - Can - Copper - drip leg - vapor - 1/2 - 3 - shutoff - 6 Temperature & pressure relief valves are installed to prevent _________________ temperature & pressure to prevent _________________. They must be in the top ______ inches of the tank. _________________ are required on all water heaters (gas & electric). Max temp. of ________ degrees (on valve). - ANS---excessive - explosion - 6 - relief valves - 210 Temperature & pressure relief discharge piping must: 1. be rated for ________________ (____________ or __________) 2. terminate _____ inches above grade 3. fall to the ___________ of the building (NOT the pan) 4. not be ___________________ (downhill) 5. be ______ size (min. _____ inch) - ANS---hot water - copper - cpvc - 6 - outside - trapped - full - 3/4"