Rate of mixing at any time is given by the extent of mixing at that particular time.

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In differential screen analysis, for calculating the particle size of the food particles on any one sieve, the average food particle size on that sieve is the mean of the screen opening of that sieve and the sieve below it.

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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.

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Statement 1: For non-Newtonian fluids, another term called apparent viscosity is used as their viscosity changes with the change in the shear rate. Statement 2: For non-Newtonian fluids, between the transition region, the power number for non-Newtonian fluids is slightly higher than that for Newtonian fluids.

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Which of the following is NOT a mixing involved with fluids in the food industry?

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

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Which of the following with respect to mixing is true?

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Which of the following is NOT an application of mixing solids in the food industry?

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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.

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Statement 1: Effectiveness of mixing in kneaders depends on the blade design. Statement 2: Kneaders have a high clearance between the two oppositely rotating blades and the vessel.

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Statement 1: Flat blade/curve blade/arrow head/vaned disc turbines are generally used for gas-liquid mixing. Statement 2: Helical screw/ribbon mixer/gate anchor are generally used for solid-solid mixing.

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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.

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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.

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In sedimentation, l – clear liquid zone, t- thick suspension zone, s- solid zone. With concentration of solids as the y-axis and the time as the x-axis, which curve does the following represent?

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In sedimentation, l – clear liquid zone, t- thick suspension zone, s- solid zone. Which of the following curve with height of the interface as the y-axis and the time as the x-axis represent the s-t interface?

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What is the flow rate of materials in a bucket conveyor dependent on?

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Statement 1: Grinding laws are based on the energy required for the creation of new surface area. Statement 2: In general, all the laws are based on the principle that the energy required per unit area of the surface is directly proportional to the size of the particle.

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Statement 1: The g-number is the ratio of the velocity in a centrifuge to that of the velocity in sedimentation. Statement 2: The g-number is represented as Z.

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Power required for a gassed system is more than that required for an ungassed system.

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

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Statement 1: Belt and screw conveyors are in all processing units to transport the final packed cartons. Statement 2: The feeding in most processing units is done by screw feeders or mechanical/oscillatory feeders.

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