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HVAC Electrical Questions And Answers With Verified Solutions 100% Correct!!!
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HVAC Electrical Questions And Answers With Verified Solutions 100% Correct!!!
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HVAC Electrical Questions And AnswersWith Verified Solutions 100% Correct!!!
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-panels allows for more locally situated branch circuit control and it
helps to reduce the likelihood of - ANSWER✔✔ Voltage Drop
A NEMA 1 enclosure is for interior usage, whereas a NEMA 4X enclosure is for
areas - ANSWER✔✔ Needing wash down, dusty, or corrosive
OCP refers to - ANSWER✔✔ Over Current Protection
There are two main reasons OCP will open the elastic circuit - ANSWER✔✔ 1.
Overload resulting from too great a connected load
2. Fault resulting from a wiring error/fault
GFCI opens a circuit when current greater than 6 milliamp flows to -
ANSWER✔✔ The ground
Shunt Trip breakers operate to open a circuit shutting off all - ANSWER✔✔ All
electrical equipment under an exhaust hood
The most common dedicated circuit is - ANSWER✔✔ 20 amp and 120 volt
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