Home

A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is

A. Ammonia

B. Carbon dioxide

C. Freon

D. Brine

Related Questions

  1. In a vapour compression system, the condition of refrigerant before entering the expansion or throttle…
  2. In vapour compression cycle the condition of refrigerant is superheated vapour
  3. In larger industrial and commercial reciprocating compression systems, refrigerant widely used is
  4. The boiling point of ________ is 10.5°C.
  5. The total pressure exerted by the mixture of air and water vapour is equal to the sum of pressures which…
  6. Ammonia is
  7. Highest temperature encountered in refrigeration cycle should be
  8. Most air cooled condensers are designed to operate with a temperature difference of
  9. The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature…
  10. The vapour compression refrigerator employs the following cycle
  11. The refrigeration effect in a dry evaporator compared to flooded evaporator in a similar plant is
  12. For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference…
  13. An evaporator is also known as
  14. The atmospheric air at dry bulb temperature of 15°C enters a heating coil maintained at 40°C.…
  15. The comfort conditions in air conditioning are at (where DBT = Dry bulb temperature, and RH = Relative…
  16. The thermostatic expansion valve is used in __________ type of evaporators.
  17. Air refrigerator works on
  18. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute…
  19. During a refrigeration cycle, heat is rejected by the refrigerant in a
  20. The reduced ambient air cooling system has
  21. For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and…
  22. The sub-cooling in a refrigeration cycle
  23. A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine…
  24. Absorption system normally uses the following refrigerant
  25. Mass flow ratio of NH₃ in comparison to Freon12 for same refrigeration load and same temperature…
  26. Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since
  27. The specific humidity during heating and humidification process.
  28. In Electrolux refrigerator
  29. The ratio of actual mass of water vapour in a given volume of moist air to the mass of water vapour…
  30. The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents

Please do not use chat terms. Example: avoid using "grt" instead of "great".