Food Processing Techniques, Fluid Mechanics and Rheology of Foods

This is an MCQ-based quiz on the topic of Food Processing Techniques, Fluid Mechanics and Rheology of Foods.

This includes the following:-

Rheology of food
Bingham plastics
Thixotropic fluids
Casson plastic
Ostwald-de Waele Model

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Which of the following is an advantage of food processing?

Availability of seasonal food throughout the year Removal of toxins and preserving food for longer Adds extra nutrients to some food items All of the mentioned

Which of the following is a disadvantage of food processing?

Canning of food leads to loss of Vitamin C Processed food adds empty calories to food constituting junk Some chemicals make the human and animal cells grow rapidly which is unhealthy All of the mentioned

Which of the following is a performance parameter for the food industry?

Hygiene Labour Used Hygiene & Labour Used None of the mentioned

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.

True, False True, True False, False False, True

XYZ Company takes its customer feedback very seriously. Hence when suggestions such as – food processed product should have minimum lost of actual flavour, no added colour etc., the company planned on shifting to the latest trend in the industry called ______

Minimal Optimization None of the mentioned Minimal Processing All of the mentioned

Certain traditional thermal processing techniques affect the nutritional properties of food.

True False

XYZ Company wanted to reduce the microbial risk involved with its fresh fruits and vegetables. Hence it introduced Ultra-violet C process which is a photochemical process which reduces the number of microbes (not completely sterilizing them). What else do you think this does?

Induces the synthesis of certain health promoting compounds Resistance against pathogens DNA damage All of the mentioned

Since excess UV-C causes DNA damage, which of the following methods can be used to apply this technique itself in spite of this drawback?

Reduce the exposure time to this process by combining two or more methods There is no solution All of the mentioned None of the mentioned

Statement 1: Advanced Oxidation Processes convert non-biodegradable organic materials into biodegradable organic forms. Statement 2: Advanced Oxidation Processes are non-environmental friendly.

True, False True, True False, False False, True

Statement 1: Acidic electrolyzed water is non-photochemical process which has a high oxidation capacity and proved as an essential biocide. Statement 2: Chlorine Dioxide has been successfully used as a disinfectant in the food processing industry.

True, False True, True False, False False, True

Which of the following is true about Sound Ultrasound?

Generates mechanical energy to enhance chemical action on surfaces Scrubbing action loosens the dirt particles and cleans the food particle Generates mechanical energy to enhance chemical action on surfaces & Scrubbing action loosens the dirt particles and cleans the food particle None of the mentioned

Which of the following methods refers to deactivation of microbes in food using electricity?

Power Ultrasound Pulsed Electric field Hurdle technology All of the mentioned

Which of the following holds true for Pulsed Electric field?

It has been successful in pasteurizing milk, yogurt, soup etc If there are no air bubbles present or the if food has low electrical conductivity, PEF is non-applicable It’s a continuous process. It cannot be applied for non-pump able solid food products All of the mentioned

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.

True, False True, True False, False False, True

Which of the following combination of processing and preservation techniques works best for smoked products?

Salt and acidification Heat and solid content Heat, salt, acidification/minimal moisture content Heat, salt, dipping in brine/ minimal moisture content

Quiz/Test Summary

Title: Food Processing Techniques, Fluid Mechanics and Rheology of Foods

Questions: 15

Contributed by:

NEO Fri, Apr 15, 2022 08:20 AM UTC

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Food Preservation, Principles of Fresh Food Storage, Principles of Refrigerated Gas Storage of Foods and Principles of Food Freezing

Equilibrium Stage Operations, Unit Operations – Extraction, Crystallization and Filteration

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

Heat Transfer Equipment, Microwave Heating, Evaporation, Diffusion and Mass Transfer and Dehydration

Principles of Food Preservation by Canning and Drying and Principles of Food Concentrates

Heat Transfer by Conduction, Convection and Radiation

Principles of Semi-Moist Foods, Principles of Food Preservation by Fermentation, Principles of Food Pickling and Curing and Principles of Food Storage Stability

Regulations and Labelling Requirement and Food Processing