Attendance 27/3/25-Dryers

What is the first factor to consider when selecting a dryer?

• Cost of the dryer

• Heat sensitivity of the material

• Size of the dryer

• Brand of the dryer

Which type of dryer is suitable for solid materials?

• Spray dryer

• Vacuum shelf dryer

• Rotary dryer

• Freeze dryer

What happens to the product in a vacuum shelf dryer?

• It is heated without vacuum

• It is dried under vacuum conditions

• It is frozen

• It is mixed with water

What is the main advantage of using a freeze dryer?

• It is the fastest drying method

• It operates at high temperatures

• It is suitable for heat-sensitive materials

• It is the cheapest option

What is the process of sublimation in freeze drying?

• Changing solid directly to gas

• Changing gas to liquid

• Changing liquid to gas

• Changing solid to liquid