HVAC ENGINEER INTERVIEW QUESTIONS

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Want to know what we're really asking for in an HVAC candidate?
Watch this video to find out the interview question of HVAC!
This video will show you how to answer some of the most common HVAC Interview Questions.
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Following question are discussed in video:


Question Number 6. Why Capacity Of Air Conditioner Is Measured In Tons?
Answer:
A 4 ton air conditioner is one that can remove 48,000 BTUs of heat per hour from the house. For most people, though, 4 tons means 8000 pounds. (A BTU is a British thermal unit, approximately the amount of heat you get from burning one kitchen match all the way down.)

Question Number 7. What Is The Meaning Of 1 Ton Of Ac?
Answer:
A ton, as used in the HVAC field, is a term that describes how much heat the AC unit can remove from a home in one hour. The measurement for heat is the British thermal unit (BTU). One ton of air conditioning can remove 12,000 BTUs of air per hour.
Question Number 8. What Is An Air Conditioning Ton?
Answer:
A ton is the cooling capacity of an air conditioning system. One ton is equal to the amount of heat required (288,000 Btu) to melt one ton of ice in a 24-hour period. A one-ton air conditioner is rated at 12,000 Btu per hour (288,000/24). A two-ton unit would be rated at 24,000 Btu per hour.
Question Number 9. What Is Btu?
Answer:
The British thermal unit (Btu or BTU) is a traditional unit of heat; it is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. ... Heat is now known to be equivalent to energy, for which the metric unit is the joule; one BTU is about 1055 joules.
Question Number 10. What Is The Meaning Of Btu In Air Conditioners?
Answer:
Btu – British thermal unit (Btu) is the international measure of energy. A Btu is the amount of heat needed to raise 1 (one) pound of water by 1(one) degree Fahrenheit. In HVAC industry, Btu's measure the quantity of heat a conditioning unit can remove from a room per hours. One BTU per hour is equal to 0293 watts.

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