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Refrigeration and Air Conditioning Practice Test: Condensers & Evaporators
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Avg score: 87% Most missed: “Which of the following is true about shell and coil condensers?”
Condensers & Evaporators topics include: Condensers, cooling towers, evaporators types, factors and defrosting methods. Condenser and evaporator are both heat exchanger devices. They have different functions, but both are important parts of air conditioning systems: Condenser: Releases heat, cools refrigerant, and changes gases into liquids. Condenser coils are usually located outside the house, in the large unit area. Evaporator: Absorbs heat, collects liquids, and changes them into vapors. Evaporator coils are located inside the indoor air handler.  In a refrigerator, the condenser is... Show more
Refrigeration and Air Conditioning Practice Test: Condensers & Evaporators
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25 Questions

1. What of the following uses natural convection air-cooled condensers?
2. Which of the following is not a factor affecting the capacity of evaporator?
3. What is the correct representation of range from the following?
4. What is the difference between the temperature of entering and leaving water in the cooling tower?
5. What is the material of tubes used for shell and tube condenser in ammonia refrigeration system?
6. Materials form deposits inside the condenser water tubes is called _______
7. Why is the evaporator used?
8. What is the value of Heat Rejection Factor if the C.O.P. 4.28?
9. What is the purpose of using a condenser?
10. What is the expression for the load on the condenser?
11. What is the value of the fluid side heat transfer coefficient when liquid flows through the evaporator shell?
12. What is the pressure side of a refrigerating system in which evaporator is used?
13. What is the value of HRF if Work is 10 kW and refrigeration capacity is 40 kW?
14. What is the expression for the heat rejection factor in terms of C.O.P.?
15. What is the formula for the effectiveness of cooling tower from the following?
16. What is the expression for the heat rejection factor?
17. Which of the following does not affect the refrigeration capacity of the condenser?
18. What is L / G in terms of the cooling tower?
19. What is the formula for the capacity of evaporator?
20. Which type of evaporator is generally used to cool drinking water?
21. Mechanical Draft cooling towers do not depend on atmospheric air.
22. What evaporator does to the refrigerant coming from expansion valve in terms of state?
23. Which of the following cooling towers possess maximum heat transfer from air to water?
24. Mechanical draft cooling tower size is ________ the size of the natural draft cooling tower.
25. A cooling tower brings water temperature to _________