Do You Have What It Takes to Be a Certified Plumber?What does a thermostatic mixing valve do?87%Next Correct Incorrect This valve mixes hot and cold water to deliver the perfect, safe temperature at your faucet. What does a thermostatic mixing valve do? A valve that maintains a safe, controlled temperature A valve that simultaneously charges the water with static electricity A valve that is itself attached to a heating element A valve that does not move 87%