In Electrolux refrigerator

A. Ammonia is absorbed in hydrogen

B. Ammonia is absorbed in water

C. Ammonia evaporates in hydrogen

D. Hydrogen evaporates in ammonia

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  1. An Electrolux refrigerator is called a __________ absorption system.
  2. Which of the following statement is correct for ammonia as a refrigerant?
  3. Most air cooled condensers are designed to operate with a temperature difference of
  4. In a vapour compression refrigeration system, a throttle valve is used in place of an expander because
  5. In a lithium bromide absorption refrigeration system
  6. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute…
  7. The relative humidity is defined as
  8. The freezing point of sulphur dioxide is
  9. For large tonnage (more than 200 TR) air-conditioning applications, the compressor recommended is
  10. The centrifugal compressors are generally used for refrigerants that require
  11. A refrigeration system
  12. A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250…
  13. Moisture in Freon refrigeration system causes
  14. The superheating in a refrigeration cycle
  15. During cooling and dehumidification, dry bulb temperature
  16. R-12 is generally preferred over R-22 in deep freezers since
  17. The alignment circle is marked on the psychrometric chart at
  18. The higher temperature in vapour compression cycle occurs at
  19. The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.
  20. In a pressure enthalpy chart, the space to the left of the saturated liquid line represents
  21. Moisture should be removed from refrigerants to avoid
  22. Dry bulb temperature is the temperature of air recorded by a thermometer, when
  23. Air refrigeration operates on
  24. The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C.…
  25. The freezing point of R-12 is
  26. The COP of a domestic refrigerator
  27. The thermostatic expansion valve operates on the changes in the
  28. In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is
  29. The specific humidity during cooling and dehumidification
  30. Oil separator in a refrigeration cycle is installed