 
			 
			MCQOPTIONS
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				| 1. | Assertion (A) : A free board of 0.3 m is provided above the top sewage line in septic tanks. Reason (R) : It helps to accommodate the scum in the septic tank. | 
| A. | Both A and R are true and R is the correct explanation of A | 
| B. | Both A and R are true but R is not a correct explanation of A | 
| C. | A is true but R is false | 
| D. | A is false but R is true. | 
| Answer» B. Both A and R are true but R is not a correct explanation of A | |