$22.$The NEC is very specific in its requirement that submersible electric water pump motors be grounded. Where is this specific requirement found in the Code?

$23.$Does the NEC allow submersible pump cable to be buried directly in the ground?

$24.)$ Must the disconnect switch for a submersible pump be located next to the well?

$25.$A metal well casing $($shall$)($shall not$)$ be bonded to the pump's equipment grounding conductor or by grounding it with a separate equipment grounding conductor run all the way back to the same ground bus in the panelboard that supplies the pump circuit, NEC

Water Heater Branch Circuit

$1.$According to NEC $422\mathrm{.}47$ the high$-$temperature limit control must disconnect of the ungrounded conductors. The high$-$temperature control limits the maximum water temperature to $FC).$

$2.$ A major hazard involved with water heaters is that they operate under whatever pressure the serving water utility supplies. Water stays liquid at temperatures higher than the normal boiling point of $212F(100C).$ If the high$-$temperature limit control failed to operate for whatever reason, should a pipe burst or a faucet be opened, the pressure would instantly drop to normal atmospheric pressure, causing the superheated water to turn into $q,$ that could result in $q,$ To prevent this from happening, water heaters are equipped with pressure$/$temperature relief valves.

$3.)$ Magnesium rods are installed inside the water tank to reduce $q,$

$4.$ The heating elements in electric water heaters are generally classified into two categories. These art $$ density and $$ density elements.