Explain how the process of freeze-drying works

What will be an ideal response?


In the process of freeze-drying, the product is quickly frozen and placed in a chamber where a vacuum is drawn. This chamber removes a great deal of air, which causes the atmospheric pressure inside to drop so that water will boil well below the freezing point. This allows the water molecules to go almost directly from ice to vapor.

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Technician A says that OHC cylinder heads often have oil galleries in them. Technician B says that pushrod engine cylinder heads often have oil galleries in them. Who is right?

A. ?Technician A only B. ?Technician B only C. ?Both A and B D. ?Neither A nor B

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Poultry integrator production in Mexico by Tyson etc. is an illustration of market integration

Indicate whether the statement is true or false

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You are preparing to saw very soft nonmetallic material that requires a smooth cut. You would probably use what type of band?

A) Fine pitch B) Low speed band C) Scalloped or wavy edge D) Diamond edge

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All of the following are processor instruction types except ________

A) loops and jumps B) encryption C) arithmetic D) data transfer

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