Particle Technology - Sedimentation

Particle Technology - Sedimentation

Assessment

Flashcard

Science

Hard

Created by

Lovern Pajo

FREE Resource

Student preview

quiz-placeholder

77 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the mechanism of filtration?

Back

In filtration, solid particles are removed from a slurry by forcing the fluid through a filter medium, which blocks the passage of the solid particles and allows the filtrate to pass through.

2.

FLASHCARD QUESTION

Front

What is sedimentation?

Back

In settling and sedimentation, particles are separated from the fluid by gravitational forces acting on the particles.

3.

FLASHCARD QUESTION

Front

What are the forces acting on a rigid particle in a fluid?

Back

1. Gravitational force (Fg = mg) 2. Buoyant force (Fb = Vp * ρf * g) 3. Drag force (FD = CD * (u^2) * (ρ * A) / 2)

4.

FLASHCARD QUESTION

Front

What is terminal velocity (VT) in sedimentation?

Back

Terminal velocity is the constant velocity that a particle quickly reaches, which is the maximum attainable settling velocity under the given circumstances.

5.

FLASHCARD QUESTION

Front

What is Stoke's Law for drag coefficient?

Back

In the laminar flow region (Re < 1), the drag coefficient can be predicted by Stoke’s law: CD = 24/Re.

6.

FLASHCARD QUESTION

Front

What is Brownian motion?

Back

Random motion imparted to the particle by collisions between the molecules of fluid surrounding the particle, which tends to suppress the effect of gravity.

7.

FLASHCARD QUESTION

Front

What is hindered settling?

Back

Hindered settling occurs when large numbers of particles are present in the fluid, affecting the velocity gradient of the particles due to their close presence.

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?