 
			 
			MCQOPTIONS
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				| 1. | Partially ventilated single stack system is the modified form of __________ | 
| A. | Single stack system and two-pipe system | 
| B. | Single stack system and one pipe system | 
| C. | One pipe system and two-pipe system | 
| D. | Two pipe system | 
| Answer» C. One pipe system and two-pipe system | |