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Questions and Answers
What type of flow pattern does an axial (longitudinal) flow exhibit?
What type of flow pattern does an axial (longitudinal) flow exhibit?
- The liquid flows parallel to the impeller shaft (correct)
- The liquid flows in a circular path around the shaft
- The impeller pumps the liquid from the bottom to the surface
- The liquid flows at right angles to the shaft
What reduces the sedimentation rate of suspended particles in viscous liquids?
What reduces the sedimentation rate of suspended particles in viscous liquids?
- Paddles
- Impellers rotating in tanks
- Propellers
- Viscous liquids (correct)
Which type of flow pattern involves the impeller pumping the liquid from the surface to the bottom?
Which type of flow pattern involves the impeller pumping the liquid from the surface to the bottom?
- The liquid flows at right angles to the shaft
- Radial flow
- Tangential (Rotational) flow
- Axial (longitudinal) flow (correct)
What are commonly used to mix liquids as well as liquids and solids in tanks?
What are commonly used to mix liquids as well as liquids and solids in tanks?
What type of flow pattern involves the liquid flowing at right angles to the shaft?
What type of flow pattern involves the liquid flowing at right angles to the shaft?
What type of flow pattern involves the liquid flowing in a circular path around the shaft?
What type of flow pattern involves the liquid flowing in a circular path around the shaft?
What reduces the sedimentation rate of suspended particles in viscous liquids?
What reduces the sedimentation rate of suspended particles in viscous liquids?
Which type of flow pattern involves the liquid flowing at right angles to the shaft?
Which type of flow pattern involves the liquid flowing at right angles to the shaft?
What type of impeller mixers commonly involve propellers?
What type of impeller mixers commonly involve propellers?
What is the most common method for mixing liquids as well as liquids and solids in tanks?
What is the most common method for mixing liquids as well as liquids and solids in tanks?
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Study Notes
Flow Patterns in Mixing
- Axial (longitudinal) flow exhibits a flow pattern where the liquid flows parallel to the shaft.
Sedimentation Rate
- Viscosity of the liquid reduces the sedimentation rate of suspended particles.
Radial Flow Pattern
- Involves the impeller pumping the liquid from the surface to the bottom.
Mixing in Tanks
- Axial flow impellers are commonly used to mix liquids as well as liquids and solids in tanks.
Tangential Flow Pattern
- Involves the liquid flowing at right angles to the shaft.
Rotational Flow Pattern
- Involves the liquid flowing in a circular path around the shaft.
Impeller Mixers
- Propeller mixers commonly involve radial flow patterns.
Mixing Methods
- Axial flow is the most common method for mixing liquids as well as liquids and solids in tanks.
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