HVAC Electrical Midterm Exam Questions and Answers All Correct

HVAC Electrical Midterm Exam Questions and Answers All Correct are the particles that orbit the core of an atom - Answer-electrons is the force that pushes free electrons through conductors - Answer-voltage name 3 terms meaning voltage - Answer-electromotive force (emf) potential difference and eletrical pressure a device used to generate electricity is called a - Answer-voltage source name 6 voltage sources - Answer-battery, generator, solar cell, thermocouple, alternator, transformer secondary is voltage current? - Answer-no electric current is flowing through a conductor - Answer-electrons is the measurement of current flow - Answer-amperage amperage tells the of electrons moving thru a conductor - Answer-amount what device is used to check amperage? - Answer-ammeter conductors provide a for current - Answer-path a circut with a complete path for current is said to have - Answer-continuity do wires have continuity? - Answer-yes reverses direction at regular intervals - Answer-alternating current current alternates (reverses direction) two times every - Answer-cycle Answer-seconds, hertz is the opposition to current flow - Answer-resistance resistance reduces the of electrons flowing thru a circuit - Answer-amount amperage will be high through a circuit that has resistance - Answer-low name 2 types of resistance - Answer-resistive, reactive counter e.m.f. is a type of resistance - Answer-reactive counter e.m.f. is produced by in motion - Answer-magnetism name 5 factors that affect the resistance of a device - Answer-material length girth temperature and magnetism in motion the resistance of an open circuit will be ohms - Answer-infinite the resistance across a closed switch or wite should be ohms - Answer-zero all loads have - Answer-resistance name 6 loads - Answer-lamp heater motor relay coul solenoid coul transformer primary resistive loads generate and or - Answer-heat , light inductive loads generate - Answer-electromagnetism name 4 inducitve loads - Answer-motor relay coil solenoid coil transformer primary ohms law states 1 will push 1 through 1 - Answer-volt, amp, ohm ohms law formula is - Answer-e = i x R if resistance does not change and voltage increases amperage will - Answer- increase if resistance does not change and voltage doubles amperage would - Answer- double if voltage does not change and resistance decreases amperage will - Answer- increase if voltage does not change and resistance is cut in half amperage will - Answer- double