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				| 1. | A flat plate was positioned at zero incidence in a uniform flow stream of air. Assuming boundary layer to be turbulent over the entire plate, workout the ratio of skin-friction forces on the front and rear half part of the plate | 
| A. | 1.557 | 
| B. | 1.447 | 
| C. | 1.347 | 
| D. | 1.247 | 
| Answer» D. 1.247 | |