| 1. | Some examples of heat exchanger are
(i) Condensers and evaporators in refrigeration units (ii) Evaporator of an ice plant and milk chiller of a pasteurizing plant (iii) Automobile radiators and oil coolers of heat engines Identify the correct answer |
| a. | 1 only |
| b. | 2 and 3 |
| c. | 1, 2 and 3 |
| d. | 1 and 2 |
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Answer: (c).1, 2 and 3
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| 2. | Heat exchangers are classified into how many categories? |
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
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Answer: (d).4
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| 3. | Based upon the nature of heat exchange process, the heat exchangers are classified into how many categories |
| a. | 1 |
| b. | 2 |
| c. | 3 |
| d. | 4 |
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Answer: (c).3
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| 4. | The energy transfer between the hot fluid and cold fluids is brought about by their complete physical mixing in |
| a. | Direct contact heat exchanger |
| b. | Regenerators |
| c. | Recuperators |
| d. | Boilers |
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Answer: (a).Direct contact heat exchanger
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| 5. | Which of the following is not an example of recuperators type heat exchanger? |
| a. | Automobile radiators |
| b. | Condensers |
| c. | Chemical factories |
| d. | Oil heaters for an aero plane |
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Answer: (c).Chemical factories
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