physical unit operations questionnaire

PHYSICAL UNIT OPERATIONS NAME: _________________________ IDENTIFICATION 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. MULTIPLE CHOICE For nos. 1-4: a. Weirs b. Flow Sensor c. Primary Flow Device d. Flumes 1. The heart of a typical continuous flow measurement system is the _____ 2. A ____ is required to measure responses of the primary flow measurement device. 3. It is a barrier across a river designed to alter its flow characteristics. 4. It is a man-made channel for water, in the form of an open declined gravity chute. For nos. 5-8: a. Aerated Grit Chamber b. Vortex-Type Grit Chamber c. Horizontal Flow Grit Chamber d. Hydrocyclone 5. Grit is removed by causing the wastewater to flow in a spiral pattern. 6. Consists of a cylindrical tank in which the flow enters tangentially. 7. The oldest type of grit removal system. 8. Typically used to separate grit from organics in grit slurries or to remove grit from primary sludge. For nos. 9-12: a. Bar Racks b. Screen c. Screenings d. Nozzle 9. The materials removed by these devices are known as _____. 10. The term “_____” is used for screening devices consisting of perforated plates, and wire cloth 11. Early _____ were of the inclined disk or drum type 12. These are used to protect pumps, valves, pipelines, and other appurtenances from damage. For nos. 13-15: a. Turbine Mixer b. Static In-line Mixer c. In-line Turbine Mixer d. Static Turbine Mixer 13. Are principally identified by their lack of moving parts. 14. Are usually constructed with a vertical shaft driven by a speed reducer and electric motor. 15. Are similar to static mixers but contain a rotating mixing element to enhance the mixing process. TRUE OR FALSE 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. MATCHING TYPE 1. Flow Metering A. Process control, and process monitoring. 2. Screening B. Type of grit chamber with a spiral pattern 3. Comminution C. Removal of course solids by interception 4. Flow Equalization D. Grinding of course solids 5. Mixing E. Type of grit chamber with tangential flow 6. Flocculation F. Equalization of flow and mass loadings of BOD 7. Sedimentation G. Mixing chemicals and gases with wastewater 8. Flotation H. Promotes aggregation of small particles into larger particles 9. Filtration I. Removal of settleable solids 10. Microscreening J. Removal of finely divided suspended solids and particles 11. Gas Transfer K. Removal of fine residual suspended solids 12. Volatilization L. Removal of algae from stabilization-pond effluent 13. Aerated Grit Chamber M. Addition and removal of gases 14. Vortex-Type Grit Chamber N. Oldest type of grit removal system

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PHYSICAL UNIT OPERATIONS

NAME: _________________________

IDENTIFICATION1.2. 3.4.5.6.7.8.9. 10.11. 12.13.14. 15.16.17.18.19.20.

MULTIPLE CHOICEFor nos. 1-4:a. Weirs b. Flow Sensorc. Primary Flow Device d. Flumes

1. The heart of a typical continuous flow measurement system is the _____2. A ____ is required to measure responses of the primary flow measurement device.3. It is a barrier across a river designed to alter its flow characteristics.4. It is a man-made channel for water, in the form of an open declined gravity chute.

For nos. 5-8:a. Aerated Grit Chamber b. Vortex-Type Grit Chamberc. Horizontal Flow Grit Chamber d. Hydrocyclone

5. Grit is removed by causing the wastewater to flow in a spiral pattern.6. Consists of a cylindrical tank in which the flow enters tangentially.7. The oldest type of grit removal system.8. Typically used to separate grit from organics in grit slurries or to remove grit from

primary sludge.For nos. 9-12:a. Bar Racks b. Screenc. Screenings d. Nozzle

9. The materials removed by these devices are known as _____.10. The term “_____” is used for screening devices consisting of perforated plates, and wire cloth11. Early _____ were of the inclined disk or drum type12. These are used to protect pumps, valves, pipelines, and other appurtenances from damage.

For nos. 13-15:a. Turbine Mixer b. Static In-line Mixerc. In-line Turbine Mixer d. Static Turbine Mixer

13. Are principally identified by their lack of moving parts.14. Are usually constructed with a vertical shaft driven by a speed reducer and electric motor.

15. Are similar to static mixers but contain a rotating mixing element to enhance the mixing process.TRUE OR FALSE

1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.

MATCHING TYPE1. Flow Metering A. Process control, and process monitoring.2. Screening B. Type of grit chamber with a spiral pattern3. Comminution C. Removal of course solids by interception4. Flow Equalization D. Grinding of course solids5. Mixing E. Type of grit chamber with tangential flow6. Flocculation F. Equalization of flow and mass loadings of BOD7. Sedimentation G. Mixing chemicals and gases with wastewater8. Flotation H. Promotes aggregation of small particles

into larger particles9. Filtration I. Removal of settleable solids10. Microscreening J. Removal of finely divided suspended solids and

particles11. Gas Transfer K. Removal of fine residual suspended solids12. Volatilization L. Removal of algae from stabilization-pond effluent13. Aerated Grit Chamber M. Addition and removal of gases14. Vortex-Type Grit Chamber N. Oldest type of grit removal system15. Horizontal Flow Grit Chamber O. Emission of volatile and semi-volatile organic

compoundsENUMERATION

Answer Key