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

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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.

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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.

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Light pulses and low does gamma irradiation are effective techniques for inactivation of bacteria and fungi in the food processing industry.

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Statement 1: Generally needle valves are not used for liquids. Statement 2: For a unidirectional flow, non return valves are used.

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Statement 1: Non-Newtonian fluids have a linear relationship between shear stress and shear strain. Statement 2: Tubes are larger than pipes in diameter and have thicker walls.

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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?

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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?

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Which of the following is an advantage of food processing?

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

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

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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 ______

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Which of the following is a disadvantage of food processing?

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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

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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.

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Statement 1: For rough control of flow _____ are used. Statement 2: For fine control of flow _____ are used.

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Statement 1: Blood is a _____ Statement 2: Thixotropic fluids are fluids whose viscosity decreases when subjected to shear stress initially but eventually with time, the viscosity increases.

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Statement 1: Two pipes are joined using _____ Statement 2: The sealing material between two pipes to be joined is called _____

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Statement 1: When several factors for food processing and preservation are applied to one food product, it is called Hurdle technology. Statement 2: Hurdle technology has arisen due to demand of costumers for healthier and more nutritious food items.

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Statement 1: Pulsed Electric field needs to followed by refrigeration storing to increase shelf life and prevent spoilage. Statement 2: Structural changes at cell membrane and inactivation of enzymes, is how high hydrostatic pressure works for the food industry.

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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.

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Statement 1: Friction factor ‘f’ is an important factor in turbulent flow. Statement 2: ‘f’ is the ratio of shear stress (ϩw) to kinetic energy head ((ρv2)⁄2g).

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Statement 1: Brookfield viscometer is very robust, is supported by software and even shows values of K and n, but, sometimes particles suspended in the fluid cause problems. Statement 2: Drawbacks of plate and cone viscometer: edge-effects, turbulence and temperature effects.

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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=Kγ<sup>n</sup> becomes μ_a= τ/γ = Kγ^(n-1).

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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.

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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.

asked Jan 30, 2022 in Food Engineering by Amelia (93.7k points)

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