102I Flashcards
1
Q
Are chloorofluorocarbon allowed
A
No
2
Q
Zeotropic are based in the
A
400 number
3
Q
Azeotropic refrigerants are in the
A
500 number
4
Q
Does R-134a have a high global warming potential
A
Yes
5
Q
Can you use HCFC
A
No
6
Q
Halocarbons are
A
Non flammable but toxic
7
Q
A zeotrope is a mixture of
A
Two or more refrigerants with different boiling points in saturation
8
Q
Zeotropics experience
A
Temperature glide
9
Q
An azeotrope is a mixture of
A
Two or more refrigerants that won’t separate
10
Q
The Montreal protocol was established in
A
1987
11
Q
What oil do we use in refrigeration
A
Synthetic oil
12
Q
Polyester oil lasts only
A
5 minutes
13
Q
Class A low toxicity is equal to how many parts per million
A
400 PPM and above
14
Q
Class B high toxicity is equal to how many parts per million
A
399 ppm and below
15
Q
R-134 color bottle is
A
Light sky blue
