WATER HEATERS - TEXAS MASTER
PLUMBER EXAM PREP - '23 100%
ACCURATE
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). - ANSWERexcessive -
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) - ANSWERhot water - copper - cpvc - 6 - outside -
trapped - full - 3/4"
Drain Pans
1. Only required when _____________ would occur from _______________ heater.
2. Must drain separately to suitable __________________ (full size). -
ANSWERdamage - leaking - waste receptor
Water heaters
1. __________ inches above floor if in or open into a ______________ or __________
room.
2. ____________ be installed in a bedroom, bathroom or clothes closet.
3. ________________________ & ________________________ are on the label.
4. _______________ water heaters _______________ is on the label.
5. _________ water heater must have _____________ 12" from _________ & 12" from
___________.
6. If in attic - must have __________ inches access to heater. - ANSWER18 - garage or
store - Cannot - Side wall clearance - working pressure - Electric - wattage - Gas -
combustion air - top - floor - 24
Water supply to water heaters
1. Must have _______________________ (any type) in cold water supply.
2. Can be _______________ or _____________ connected.
3. If dissimilar material, must have __________________ or approved connector.
4. If ___________________ water heater, cold water must have vacuum relief in a
vertical position. - ANSWERshut off valve - hard piped or flex - dielectric union - bottom
fed
Gas piping to water heaters
PLUMBER EXAM PREP - '23 100%
ACCURATE
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). - ANSWERexcessive -
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) - ANSWERhot water - copper - cpvc - 6 - outside -
trapped - full - 3/4"
Drain Pans
1. Only required when _____________ would occur from _______________ heater.
2. Must drain separately to suitable __________________ (full size). -
ANSWERdamage - leaking - waste receptor
Water heaters
1. __________ inches above floor if in or open into a ______________ or __________
room.
2. ____________ be installed in a bedroom, bathroom or clothes closet.
3. ________________________ & ________________________ are on the label.
4. _______________ water heaters _______________ is on the label.
5. _________ water heater must have _____________ 12" from _________ & 12" from
___________.
6. If in attic - must have __________ inches access to heater. - ANSWER18 - garage or
store - Cannot - Side wall clearance - working pressure - Electric - wattage - Gas -
combustion air - top - floor - 24
Water supply to water heaters
1. Must have _______________________ (any type) in cold water supply.
2. Can be _______________ or _____________ connected.
3. If dissimilar material, must have __________________ or approved connector.
4. If ___________________ water heater, cold water must have vacuum relief in a
vertical position. - ANSWERshut off valve - hard piped or flex - dielectric union - bottom
fed
Gas piping to water heaters
