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12 Questions

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Factors Affecting Filtration Rate Quiz

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Questions and Answers

How does increasing the viscosity of the filtrate affect the rate of filtration?

It decreases the thickness of the filter cake

It decreases the rate of filtration (correct)

It increases the rate of filtration

It has no effect on the rate of filtration

What is the advantage of a leaf filter?

Low labor cost

Large capacity

Ability to wash the cake by immersion (correct)

Automatic and continuous operation

What can be used to decrease the viscosity of a liquid in the context of filtration?

Increasing the pressure difference across the filter medium

Raising the temperature of the liquid (correct)

Increasing the thickness of the filter cake

Decreasing the surface area for filtration

What is a disadvantage of pressure filter?

Expensive (use of vacuum) Signup and view all the answers

Which factor can enhance the rate of filtration according to the text?

Pressure difference across the filter medium Signup and view all the answers

What is the function of the drainage screen in a leaf filter?

To support the filter cloth Signup and view all the answers

What is the objective of using filter aids in filtration?

To decrease the resistance to flow Signup and view all the answers

How does the filtrate pass through a plate and frame filter?

Onto the surface of the plate Signup and view all the answers

What are the essential characteristics of an ideal filter aid?

Light, porous, inert, insoluble, incompressible, and irregularly shaped Signup and view all the answers

Which method involves forming a pre-coat over the filter medium by filtering a suspension of the filter aid?

Pre-coating technique Signup and view all the answers

Which of the following is an example of a filter aid?

Talc Signup and view all the answers

What is the purpose of applying vacuum to submerged sectors in a rotary drum filter?

To aid in cake deposition and drying Signup and view all the answers