The boiling point of ammonia is

Related Questions

1. Which of the following statement is wrong?
2. In S.J. unit, one ton of refrigeration is equal to
3. Carbon dioxide is
4. In vapour compression cycle the condition off refrigerant is dry saturated vapour
5. A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250…
6. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute…
7. The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by
8. In a vapour compression cycle, the refrigerant immediately after expansion valve is
9. In vapour compression cycle, the condition of refrigerant is high pressure saturated liquid
10. Which of the following refrigerant has the lowest freezing point?
11. Air refrigeration cycle is used in
12. In case of sensible cooling of air, the coil efficiency is given by
13. Critical temperature is the temperature above which
14. The boiling point of ammonia is
15. The operating pressure for refrigerating units using R-12 as a refrigerant is
16. A good refrigerant should have
17. The refrigerant used in small tonnage commercial machines (hermetically sealed units) is
18. The advantage of dry compression is that
19. Efficiency of a Carnot engine is given as 80%. If the cycle direction be reversed, what will be the…
20. In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is
21. On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line…
22. In vapour compression cycle the condition of refrigerant is superheated vapour
23. During a refrigeration cycle, heat is rejected by the refrigerant in a
24. Wet bulb temperature is the temperature of air recorded by a thermometer, when
25. During heating and humidification, the final relative humidity of air
26. In a vapour compression system, the condition of refrigerant before passing through the condenser is
27. During sensible heating of air _________ decreases.
28. A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called
29. Nusselt number (NN) is given by
30. Under cooling in a refrigeration cycle

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