 
			 
			MCQOPTIONS
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				| 1. | What is the maximum reduced concentration of BOD obtained at the outlet of tricking filter? | 
| A. | t40 mg/L | 
| B. | t20 mg/L | 
| C. | t30 mg/ L | 
| D. | t45 mg/L | 
| Answer» C. t30 mg/ L | |