Home > Food Science And Technology > Quizzes > Food Engineering Practice Test: Food Processing Techniques, Fluid Mechanics and Rheology of Foods
Food Engineering Practice Test: Food Processing Techniques, Fluid Mechanics and Rheology of Foods
Fast practice, instant feedback. Timer auto-submits when time’s up.
Avg score: 50% Most missed: “XYZ Company wanted to reduce the microbial risk involved with its fresh fruits a…”
Food processing techniques include: Peeling: Removing the outer layers of raw materials Chopping or slicing: Cutting food into smaller pieces Mincing: Mincing food Liquefaction: Changing food into a liquid state Fermentation: A process that breaks down sugars without oxygen Emulsification: A food processing technique Cooking: A food processing technique Mixing: A food processing technique Gasification: A food processing technique Proofing: A food processing technique Spray drying: A food processing technique Pasteurization: A process that involves heating liquid foods to a... Show more
Food Engineering Practice Test: Food Processing Techniques, Fluid Mechanics and Rheology of Foods
Time left 00:00
25 Questions

1. Statement 1: Fans and blowers create pressure energy whereas compressors don’t.

Statement 2: In food processing various liquids like milk and juices are transported by pumps
2. Statement 1: In Pulsed Electric field, food is kept between two electrodes and electricity is passed to deactivate microbes.

Statement 2: Pulsed Electric field increases shelf life.
3. Statement 1: Starch is _____ as its viscosity decreases with an increase in shear stress.

Statement 2: Bingham plastics follow Newton’s law of viscosity at low shears.
4. Which of the following methods refers to deactivation of microbes in food using electricity?
5. Which of the following is true about Rotary pumps?
6. Statement 1: Brookfield viscometer is an example of Coaxial Cylinder Viscometer.

Statement 2: Working principle of a Brookfield viscometer: Two coaxial cylinders. Liquid is filled in between them. The viscosity produces torque which is directly proportional to the shear stress.
7. Statement 1: Hurdle technology is a ‘multi-target preservation’.

Statement 2: The main target of food preservation is to help the harmful microorganisms to achieve homeostasis.
8. Certain antioxidants (e.g. – Nisin) can be used with the organic acids to reduce certain micro flora.
9. Which of the following is a disadvantage of food processing?
10. Which of the following is a name of an actual viscometer?
11. Which of the following is true about Centrifugal pumps?
12. In Bernoulli’s equation, the friction correction factor is added to the LHS and the energy contributed by the pump is written on the RHS.
13. Rheology of food in the food processing industry is how the food is affected when _____ is applied.
14. Statement 1: Apparent viscosity μ_a is related to shear stress (τ) and shear strain (γ) as μ_a= τ/γ.

Statement 2: The equation τ=Kγn becomes μ_a= τ/γ = Kγ(n-1) .
15. Statement 1: In μ_a= τ/γ = Kγ(n-1) , n = consistency index and K is the flow behaviour index.

Statement 2: n= 1 for Newtonian fluids, n<1 for dilatant fluids and n>1 for pseudo plastic fluids.
16. Statement 1: Diaphragm pumps can handle corrosive material and do not have leakage problems, but, they only vibrate hence the output is low.

Statement 2: Diaphragm pump is an example of _____
17. Which of the following pumps is this pump- It has no rotating or reciprocating parts involved. No leakage. Air/gas used to impart energy.
18. Statement 1: Considering the equation, μ_a= τ/γ = Kγ(n-1) , for pseudo plastic fluids, n<1 and they’re called Shear thinning liquids and dilatant fluids are called Shear thickening liquids as n>1.

Statement 2: Cooked starch solution is a Shear thinning liquid and dairy cream is a Shear thickening liquid.
19. Which of the flowing is true about two-parameter model?
20. Which of the following is true about Sound Ultrasound?
21. Statement 1: Two pipes are joined using _____

Statement 2: The sealing material between two pipes to be joined is called _____
22. Which of the following is an advantage of food processing?
23. Statement 1: Cost reduction trend of the food industry often leads manufacturers to forget the health aspect of the food, although health itself is another important trend of the food industry.

Statement 2: Food processing industries now-a-days is also looking into energy efficiency methods to process food. Hence it’s an upcoming trend.
24. Which of the following holds true for Pulsed Electric field?
25. Statement 1: Bernoulli’s equation can be applied to flow through pipes both, with and without friction.

Statement 2: Air is an incompressible fluid.