Although it is no longer used in the manufacturing of new air conditioning systems, the number of existing systems using __________ is large, so technicians will be encountering this refrigerant for many years to come.

A. R-22
B. R-12
C. R-410A
D. R-134a


Answer: A

Trades & Technology

You might also like to view...

What are some of the tasks of a food scientist?

What will be an ideal response?

Trades & Technology

What three times of the year are ideal for optimal grass seed germination?

What will be an ideal response?

Trades & Technology

When a general duty split-phase motor reaches approximately 75% of its operating speed, the start winding is de-energized by a ____.

A. circuit board B. capacitor C. centrifugal switch D. dual voltage switch

Trades & Technology

Voltage drop is a better measurement of resistance than testing static resistance because ________

A) The resistance specification for the component is not required for diagnosis B) Current flow creates heat which adds to circuit resistance C) Both A and B D) Neither A nor B

Trades & Technology