HVAC Electrical Study guides, Class notes & Summaries

HVAC Electrical Test Questions and Answers Rated A+ Current flow is the flow of electrons in the circuit impedance is opposition to alternating current flow like charges repel each other Any material that will readily release electrons is called a conductor the symbol for current is I Which of the following materials would best be suited for use as a semi-conductor silicone the safety ground conductor is usually color coded black (or bare or green & yellow stripe) An e...

HVAC Electrical Final Test Questions and Answers Graded A+ Split-phase motor PSC CSCR Shaded pole motor Resistance reading to ground from the terminal of a good compressor CSR Best starting and running single-phase compressor A. Uses a start and run winding B. Uses a run capacitor C. Uses a run capacitor, start capacitor, and potential relay D. Simplest motor E. 3 megohms F.Only uses a start capacitor G. CSCR motor How much resistance will be measured...

HVAC Electrical ch. 16 Exam Questions with Correct Answers A ___ starts stops or modulates the flow of water, air, or refrigerant to the system or conditioned space. - Answer-controlled device All controls systems can be subdivided into ____ no matter how many controls there are. - Answer-control loops ____ control systems were used before electronics. - Answer-pneumatic Pneumatic controls must have a permanent air supply that is ___. - Answer-clean and dry Most system compressor...

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, alter...

HVAC Electrical Final Review Questions with Correct Answers A switch in a open position - Answer-Infinite What does FLA stand for - Answer-Full loaded Amps When does the motor draw FLA - Answer-When the motors are running (full speed) I need to shut off the power before measuring - Answer-ohms infinite infinite 10 - Answer-one open one good name two motors that do nut use capacitors - Answer-Shaded pole and split phase electrically what does the capacitor do to the circuit - ...

HVAC Electrical Practice Exam with complete Solutions The heat pump requires ______________thermostat. a. single stage heating operation b. two stage heating operation c. three stage heating operation - Answer-two stage heating operation the thermostat will look for the ____ circuit first before using the battery back-up power. a. R b. C c. Y - Answer-C the ____ circuit is a 24 volt L1 from the transformer. a. R b. C c. Y - Answer-R the ______ circuit is a 24 volt L1 cont...

HVAC electrical 2024 Exam Questions with Answers List what part (voltage source, switch, or load) is checked with the following meter function "VOLTAGE" - Answer-Voltage source, switch and load. AC electricity flows? - Answer-Both.....positive to negative and negative to positive. When electricity is present, which of the following are also present - Answer-Heat and magnetism What voltage is provided by the electric company to a modern residential home? - Answer-220VAC What are...

HVAC Electrical Test Questions with All Correct Answers There are four principle Electrical Quantities: - Answer-1. Voltage reped by E 2. Amperage reped by I 3. Wattage reped by P 4. Ohms reped by R Ohm's Law is expressed by the principle formula of - Answer-E/I*R The Power Formula is expressed by the principle formula of - Answer-P/I*E To determine the real power capability of an electrical service you must take into account - Answer-Phase, Voltage, and Amperage Having Sub-p...

HVAC Electrical Test Questions with All Correct Answers There are four principle Electrical Quantities: - Answer-1. Voltage reped by E 2. Amperage reped by I 3. Wattage reped by P 4. Ohms reped by R Ohm's Law is expressed by the principle formula of - Answer-E/I*R The Power Formula is expressed by the principle formula of - Answer-P/I*E To determine the real power capability of an electrical service you must take into account - Answer-Phase, Voltage, and Amperage Having Sub-p...