HVAC Electricity Exam Questions with Correct Answers

HVAC Electricity Exam Questions with Correct Answers Amp Rating and Breaker size for - #14, #12, #10, #8, #6, #3 - Answer-14-15,15 12-20,20 10-30,30 8-45,40 6-65,60 3-105,100 Residential lighting and receptacle circuits use what type of wire? - Answer-14-2 AWG (14-gauge, 2-wire, plus bond) conductors Ampacity - Answer-The amount of current a conductor is rated to handle safely. NMD - Answer-Non-metallic-sheathed cable(dry) - for exposed wiring in dry or damp locations NMW - Answer-Non-metallic-sheathed cable(wet) - for exposed wiring in wet locations Overload - Answer-Moderate increase in current beyond the rated current value. Most common method used by electrical grids to transfer power. Also for large motors and heavy loads. - Answer-Three phase electric power Grounding - Answer-Connection of all exposed non-current carrying metal parts to the earth that provides a direct path for unwanted current to earth without causing harm to people or equipment.