Food Engineering Practice Test 6

1. Statement 1: In a dairy industry, it is desired to obtain the cream from milk using a centrifuge. Which will stay in the center?
Statement 2: It is desired to have __________ for the above process.

2. Statement 1: In the transient zone, the power input depends on the density and viscosity of the fluid.
Statement 2: In the laminar zone, the power input depends on the density only. It is independent of the viscosity of the fluid.

3. Which food industry is centrifuge NOT used in?

4. As a thumb rule in the food industry, reducing the temperature of storage by 10degC increases the life of food item by twice and increasing by 10degC reduces by half.

5. The area of neutral zone, in a centrifuge is __________

6. Statement 1: Bucket conveyors can be divided into close and spaced bucket conveyors.
Statement 2: Bucket conveyors can be divided into centrifugal and positive discharge bucket conveyors.

7. Dorr-Oliver thickener is also called a _____

8. Statement 1: In both, centrifuge and sedimentation, the terminal velocity of the particle is reached after a certain time.
Statement 2: The formula used for finding out the velocity is the same for both the processes.

9. Which of the following is NOT an advantage of mechanical transportation?

10. Statement 1: Nuts can be classified as high-fat, high-protein and high-carbohydrate.
Statement 2: Cashew nuts come under the high-carbohydrate category.