Combination temperature and pressure relief valves shall be installed_________. - ANS_within 6 inches
of the top of the tank
Storage water heater outlet temperature are commonly significantly higher than the thermostat
temperature due to - ANS_Thermal Stratification
If temperature limiting devices are not present at existing fixtures when installing a new water heater,
what should the installer do? - ANS_make the owner aware of the potential scald hazards that are
present.
What is the approximate amount of time for 140°F water to scald? - ANS_Less than 5 seconds
Where a thermostatic mixing valve is used in combination with a hot water recirculating pump, the hot
water or tempered water return line shall be routed to the: - ANS_To the cold water inlet pipe & cold
water
Inlet of mixing valve
Where a backflow prevention device, check valve or other device is installed on a water supply system
using storage water heating equipment a/an_______ is required. - ANS_Expansion tank
of the top of the tank
Storage water heater outlet temperature are commonly significantly higher than the thermostat
temperature due to - ANS_Thermal Stratification
If temperature limiting devices are not present at existing fixtures when installing a new water heater,
what should the installer do? - ANS_make the owner aware of the potential scald hazards that are
present.
What is the approximate amount of time for 140°F water to scald? - ANS_Less than 5 seconds
Where a thermostatic mixing valve is used in combination with a hot water recirculating pump, the hot
water or tempered water return line shall be routed to the: - ANS_To the cold water inlet pipe & cold
water
Inlet of mixing valve
Where a backflow prevention device, check valve or other device is installed on a water supply system
using storage water heating equipment a/an_______ is required. - ANS_Expansion tank
