Question

Which of the following voltages will a refrigeration, heating, and air-conditioning technician come in contact with in the industry?

-24 volts
-120 volts
-240 volts
-all of the above

Answer 1

A technician in the refrigeration, heating, and air-conditioning industry will encounter 24 volts, 120 volts, and 240 volts, reflecting the use of different voltages for various applications, from low-voltage control systems to heavy-duty appliances.

Step-by-step explanation:

A refrigeration, heating, and air-conditioning technician will come in contact with various voltages in the industry, including 24 volts, 120 volts, and 240 volts. Low-voltage control systems commonly use 24 volts AC, while 120 volts is the standard voltage for most household appliances and some light commercial equipment in the United States. The 240 volts AC is typically utilized for heavy-duty appliances like ovens, dryers, and larger air conditioning units. The diverse voltages are used because they suit different purposes, with higher voltages being more efficient for transmitting power over long distances and lower voltages being safer and more suitable for smaller applications.