MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A pressure difference of _____________ is applied to the vacuum floatation method to remove impurities from sewage. |
| A. | 0.5 atm |
| B. | 1 atm |
| C. | 1.5 atm |
| D. | 2 atm |
| Answer» C. 1.5 atm | |
| 2. |
The detention period of detritus tank is ____________ |
| A. | 40 seconds |
| B. | 1 minute |
| C. | 3 minute |
| D. | 1 hour |
| Answer» D. 1 hour | |
| 3. |
The design velocity of flow of a detritus tank is ____________ |
| A. | 1m/Sec |
| B. | 1.2m/Sec |
| C. | 0.9m/Sec |
| D. | 0.5m/Sec |
| Answer» D. 0.5m/Sec | |
| 4. |
Which of the following has a minimum detention period? |
| A. | Sludge digestion tank |
| B. | Primary sedimentation |
| C. | Skimming tank |
| D. | Oxidation pond |
| Answer» D. Oxidation pond | |
| 5. |
The coefficient of drag for a transition settling is ____________ |
| A. | CD = 18.5/R<sup>0.6</sup> |
| B. | CD = 24/R |
| C. | CD = 8.5/R<sup>0.6</sup> |
| D. | CD = R/24 |
| Answer» B. CD = 24/R | |
| 6. |
The dimension formula of kinematic viscosity is ____________ |
| A. | L<sup>-1</sup>T |
| B. | ML<sup>-1</sup>T<sup>-1</sup> |
| C. | ML<sup>-2</sup>T<sup>-2</sup> |
| D. | L<sup>2</sup>T<sup>-1</sup> |
| Answer» E. | |
| 7. |
The dimension formula of dynamic viscosity is ____________ |
| A. | ML<sup>-1</sup>T |
| B. | ML<sup>-1</sup>T<sup>-1</sup> |
| C. | ML<sup>-2</sup>T<sup>-2</sup> |
| D. | ML<sup>-1</sup>T<sup>-3</sup> |
| Answer» C. ML<sup>-2</sup>T<sup>-2</sup> | |
| 8. |
The relation between dynamic and kinematic viscosity is given by ____________ |
| A. | Dynamic viscosity = Kinematic viscosity * Density of water |
| B. | Kinematic viscosity = Dynamic viscosity + Density of water |
| C. | Dynamic viscosity = Kinematic viscosity * Density of water |
| D. | Dynamic viscosity = Kinematic viscosity / Density of water |
| Answer» D. Dynamic viscosity = Kinematic viscosity / Density of water | |
| 9. |
The unit of dynamic viscosity is ____________ |
| A. | Metre<sup>2</sup>/Sec |
| B. | Metre/Sec |
| C. | Pa * Sec |
| D. | Dimensionless |
| Answer» D. Dimensionless | |