V08_Microfluidic Systems - Bio-MEMS Quiz
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Questions and Answers

The Capillary number is one of the common parameters affecting droplet formation at T-Junctions.

True

The flow rate ratio at a T-Junction is calculated as the ratio of QD to QF.

False

The viscosity ratio is represented by the symbols μD and μF.

False

The aspect ratio in droplet formation at T-Junctions refers to the ratio of channel height to width.

<p>False</p> Signup and view all the answers

In Plug Generation at T-Junctions, different angles have no effect on the process.

<p>False</p> Signup and view all the answers

Squeezing primarily occurs at low flow rates in the context of droplet formation.

<p>True</p> Signup and view all the answers

In the formation of droplets at a T-junction, the cutting rate is unaffected by flow rates and channel dimensions.

<p>False</p> Signup and view all the answers

In the creation of double (multi-) emulsions, the hydrophobic channel wall is preferred for O/W emulsions.

<p>False</p> Signup and view all the answers

For flow focusing, in a hydrodynamic focusing arrangement, the dispersed phase is expanded at a constriction.

<p>False</p> Signup and view all the answers

In the process of droplet formation by flow focusing, water is not used as part of the arrangement.

<p>False</p> Signup and view all the answers

Passive structures play a significant role in the design and functioning of microfluidic systems like Bio-MEMS.

<p>True</p> Signup and view all the answers

Plugs are commonly used in T-Junction flow configurations to control the droplet formation process.

<p>True</p> Signup and view all the answers

Passive structures are not involved in the formation of droplets at T-junctions.

<p>False</p> Signup and view all the answers

Coaxial injection is a common method used for droplet formation at T-junctions.

<p>True</p> Signup and view all the answers

Droplet formation at T-junctions only occurs for small flow rates of the continuous phase.

<p>False</p> Signup and view all the answers

The value of α in the equation Qwater = 1 + α * w * Qoil depends on the viscosity of the fluids.

<p>False</p> Signup and view all the answers

Plugs are commonly formed at T-junctions due to high shear stress.

<p>True</p> Signup and view all the answers

The formation of droplets at T-junctions is not affected by interfacial tension.

<p>False</p> Signup and view all the answers

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