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Refrigerants Quiz Questions Answers 3
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Question 1 of 15
1. Question
1 pointsWhich of the following refrigerant has the least tendency to leak:
Correct
R-11 has lower molecular weight
Incorrect
R-11 has lower molecular weight
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Question 2 of 15
2. Question
1 pointsAfter ______ the servicing of R-22-based systems will rely on recycled refrigerants
Correct
Incorrect
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Question 3 of 15
3. Question
1 pointsFor all commercial appliances that have a refrigerant charge of more than 50 pounds, the trigger leak rates shall be ______ for a 12-month period so that the owner or operator must take corrective action.
Correct
Incorrect
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Question 4 of 15
4. Question
1 pointsIn halide leak test, if there is a freon refrigerant leak the flame will turn ______:
Correct
Incorrect
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Question 5 of 15
5. Question
1 pointsA dense _____ smoke forms when the ammonia comes in contact with the sulfur dioxide
Correct
Incorrect
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Question 6 of 15
6. Question
1 pointsThe hydrolysis rate for the Freon compounds as a group is _____ compared with other halogenated compounds.
Correct
Incorrect
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Question 7 of 15
7. Question
1 pointsLatent heat of refrierant is expressed in Btu per second
Correct
Btu per pound
Incorrect
Btu per pound
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Question 8 of 15
8. Question
1 pointsWhich of the following refrigerant has least density:
Correct
Incorrect
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Question 9 of 15
9. Question
1 pointsFluorocarbons decompose when exposed directly to ____ temperatures
Correct
Incorrect
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Question 10 of 15
10. Question
1 pointsHigh molecular weight of the Freon compounds contributes to ____ specific heat values
Correct
Incorrect
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Question 11 of 15
11. Question
1 pointsWhich of the following refrigerants are used in the standard absorption type of refrigeration system:
Correct
Incorrect
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Question 12 of 15
12. Question
1 pointsWhich of the following is not a desirable property for a good refrigerant:
Correct
Incorrect
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Question 13 of 15
13. Question
1 pointsFreons R-12 and R-22 have the ______ specific volumes as vapors:
Correct
Incorrect
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Question 14 of 15
14. Question
1 pointsA _____ specific heat is desirable property of the refrigerant:
Correct
Incorrect
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Question 15 of 15
15. Question
1 pointsA refrigeration should have a _____ latent heat of evaporation per unit of weight:
Correct
Incorrect