 
			 
			MCQOPTIONS
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				| 1. | Which one of the following pairs has similar working principles? | 
| A. | Spray and sparged | 
| B. | Sparged and baffled | 
| C. | Spray and Baffled | 
| D. | Tray and sparged | 
| Answer» D. Tray and sparged | |