HVAC State Test Prep 12

Freon-11 has a boiling point of:

• -100 degrees F
• 32 degrees F
• 212 degrees F
• 74.8 degrees F

Where is R-12 most often used as a refrigerate?

• household and commercial refrigeration
• automobile air conditioners
• processing equipment
• none of these

What type of compressors make good use of R-12?

• reciprocating compressors
• rotary compressors
• screw compressors
• desiccant compressors

What is the boiling point of Freon-13?

• 100 degrees F
• -144.6 degrees F
• 74.8 degrees F
• 32 degrees F

What is the boiling point of Freon-21?

• 74.8 degrees F
• 100 degrees F
• 48 degrees F
• 32 degrees F

With what type of compressor does Freon-21 refrigerate work best?

• reciprocating
• rotary vane
• piston
• absorption

Freon-22 has a boiling point of _________ degrees F.

• 48
• 212
• 32
• -41.4

What type of compressor works best with R-22?

• rotary-vane type
• reciprocating
• absorption system
• screw type

Where is R-22 used today?

• in azeotropic compressors
• in piston compressors
• in rotary-vane compressors
• in home air-conditioners

The boiling point of Freon 113 is:

• 48 degrees F
• −41.4 degrees F
• 100 degrees F
• 117.6 degrees F