Electrical Wiring Diagram Symbols Exam 100% Accurate!

High Pressure Switch Normally Closed Opens on increase (rise)/Closes on decrease (drop) (vacuum & pressure activated) - ANSWER Low Pressure Switch Normally Open Closes on increase (rise)/Opens on decrease (drop) (vacuum & pressure activated) - ANSWER Cooling Thermostat Normally Open Closes on increase (rise)/Opens on decrease (drop) (temperature activated) - ANSWER Heating Thermostat Normally Closed Opens on increase (rise)/Closes on decrease (drop) (temperature activated) - ANSWER Normally Open Contacts - ANSWER Normally Closed Contacts - ANSWER Disconnect Switch - ANSWER Normally Open Spring Return Limit Switch - ANSWER Normally Closed Spring Return Limit Switch - ANSWER Single Pole Single Throw Switch - ANSWER Single Pole Double Throw Switch - ANSWER Single Pole Double Throw 3 Position Switch - ANSWER