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HVAC Electrical Midterm Exam Questions and Answers All Correct
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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...

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  • October 15, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • hvac electrical midterm exam
  • hvac electrical midterm exam questions
  • hvac electrical midterm exam questions and
  • exam questions and answers all correct

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  • HVAC Electrical
  • HVAC Electrical

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_____ 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

/.ac in the usa flows at 60 cycles per _____ , which means the same as 60 _____ -
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

/.the ____ is the measurement of electric power - Answer-watt

/.watts law formula is - Answer-p= i x e

/.120 volts pushing 10 amps of current will generate ____ watts of power. (convert to
kilowatts ____ kw) - Answer-1200, 1.2

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