Sedimentation and Centrifuge, Mixing, Size Reduction and Separation and Material Handling and Transportation

Sedimentation and centrifugation involve two miscible phases.

Which of the following does the terminal velocity of a particle NOT depend on?

With respect to Sedimentation, the boundary between the thick suspension and solids will be decreasing and that between the clear liquid and the thick suspension will be increasing with the passage of time.

The experimental details of the batch sedimentation experiment are comprehended by plotting which of the following two?

Statement 1: For calculating the minimum thickener area, the angle bisector method is used. Statement 2: In the angle bisector method, the point obtained the curve and the corresponding time is the time when the solids enter the compression zone.

The compression zone in batch sedimentation is considered the overflow.

Dorr-Oliver thickener is also called a _____

Which of the following is an application of sedimentation in the food industry?

Which of the following with respect to mixing is true?

Statement 1: Root mean square is denoted by σ2 Statement 2: σ2 will show the variation of a composition obtained after mixing. Hence the lesser it is, the more efficient is the mixing.

Which of the following conditions show that a certain industrial mixer is the best?

The force used for mixing by mixing equipment for pastes and dough is _____

The clearance between the impeller and the vessel in a mixer is usually kept _____

Statement 1: Kneaders are specially used for pastry/viscous liquids in the food industry. Statement 2: Kneaders are used for mixing dough with fats and making them homogeneous mixtures.

Which of the following is true with respect to mixing operations in the food industry?