G azərbaycan respublikasi təHSİl naziRLİYİ azərbaycan texniKİ universiteti M. M. QƏNDİLova e. Q. İsmayilova

Key Words and Phrases:
refrigeration (n) take off (v)

refrigerant (n) artificial

Civil War store (v)

design (v) storage (n)

ice-making warehouse (n)

domestic refrigerator flammable

blood (n) surgery (n)

outside temperature distribute (v)

I. Answer the following questions:

1. 
   When did the mechanical refrigeration industry start?
   
2. 
   When did the production of the first ice-making machine start?
   
3. 
   What kind of liquid was first used as a refrigerant in the ice-making machine in the 19^th century?
   
4. 
   What kind of refrigerants are used in modern refrigeration and air-conditioning systems?
   
5. 
   When was the first domestic refrigerator developed?
   
6. 
   What was the reason to develop the specialized refrigeration equipment?
   
7. 
   What is the advantage of using centralized cooling and heating systems in modern houses?
   
8. 
   Do you enjoy the services of split type air-conditioners in hot summer days?
   
9. 
   Can you tell the names of famous Japanese companies producing window-type and split type air-conditioners today?
   
10. 
    Are there any factories producing air-conditioners and refrigerators in Azerbaijan?