Q. As the film rises further evaporation occurs until they reach the top of the tubes. The mixture of vapor and milk then passes into a separate chamber from which the vapor passes to a condenser. Name the evaporator.

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Q. Which of the following is not the advantage of falling film evaporator?

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Q. Great economies of operation may be made in large installations with ___________

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Q. Device used to improve thermal efficiency of an evaporator is called?

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Q. Evaporators in the dairy industry don’t concentrate which of the following?

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Q. Ratio of capacity to economy is known as ________

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Q. __________ is the total mass of water vaporized per unit mass of steam input to the evaporator.

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Q. Single effect evaporation is simple and steam effective.

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Q. ________ Rule is often used to compare a pure liquid and a solution at a given concentration.

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Q. Aeration in milk doesn’t occur in which of the following states?

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Q. Milk in udder contains what percentage of gases?

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Q. Dispersed air in milk cause problems.

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Q. Aeration leads to ______ in volumetric measurement of milk.

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Q. Which among the following are the problem associated with aeration in milk?
I) Incrustation of heating surfaces in pasteurizers (fouling)
II) Reduced skimming efficiency in separators
III) Loss of precision in automatic in-line standardization
IV) Inaccurate in-line fat standardization

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Q. In order to make milk pass through air eliminator, the inlet of the cylindrical vessel must be located at a ______ level than the outlet pipe of the milk tank on the vehicle.

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Q. Efficiency of milk deaerator depends on which of the following factor?

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Q. Which law forms the basis of working of deaerator?

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Q. Solubility of gases decrease with ________ in solution temperature.

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Q. Which of the deaerator have application in the dairy industry?

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Q. Components of vacuum deaerator are?
I) Deaerator

II) Vacuum pump

III) Pump unit

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