 
			 
			MCQOPTIONS
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				This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Waste Water Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. | What is the range of charge present on bentonite? | 
| A. | t20-30 meq/gram | 
| B. | t30-40 meq/gram | 
| C. | t40-60 meq/gram | 
| D. | t70-90 meq/gram | 
| Answer» E. | |
| 2. | Organo clays are manufactured by modifying _____with quaternary amines. | 
| A. | tNitrogen | 
| B. | tBentonite | 
| C. | tPotassium | 
| D. | tSodium | 
| Answer» C. tPotassium | |
| 3. | Surfactants and finely divided solids _____the stability of the emulsion. | 
| A. | tIncrease | 
| B. | tDecease | 
| C. | tNeutralize | 
| D. | tNullify | 
| Answer» B. tDecease | |
| 4. | An emulsion is a _____ system. | 
| A. | tHomogenous | 
| B. | tHeterogenous | 
| C. | tNatural | 
| D. | tOxidized | 
| Answer» C. tNatural | |
| 5. | _________ act as a coupling agent between oil oil/water phases. | 
| A. | tOil | 
| B. | tWater | 
| C. | tEmulsifier | 
| D. | tDisinfectants | 
| Answer» D. tDisinfectants | |