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				| 1. | Natural convection heat transfer coefficients over surface of a vertical pipe and a vertical flat plate for same height. What is/are the possible reasons for this?(i) Same height(ii) Both vertical(iii) Same fluid(iv) Same fluid flow patternSelect the correct answer | 
| A. | iv | 
| B. | i and ii | 
| C. | i | 
| D. | iii and iv | 
| Answer» E. | |