ABE (CHAP11 DRYING AND DEHYDRATION)

Temporary holding of grains between drying passes to allow the moisture in the center of the grain to equalize with that on its surface.

• Tempering

• Static drying

• Dryaeration

• None of the above

Process of subjecting the liquid product into a stream of hot air in a drying vessel to separate the water from the particles producing fine particles as the product.

• Air drying

• Spray drying

• Freeze drying

• None of the above

Dehydration process that operates on principle of cooling the product until it solidifies followed by subjecting it to a low pressure to cause the water in the product to sublimate hence minimize alteration of its properties.

• Air drying

• Spray drying

• Freeze drying

• None of the above

Device that generally removes excess moisture by forced ventilation either with or without addition of heat.

• Fryer

• Dehydrator

• Dryer

• None of the above

Batch-type dryer with vertical holding-bin used for deep-bed drying.

• Recirculating dryer

• Vertical-bin dryer

• Batch-type dryer

• None of the above

Mechanical dryer equipped with series of holding bins that allow grains to continuously pass through its drying chamber until their moisture content is reduced to a desired level.

• Batch dryer

• Continuous-flow dryer

• Recirculating dryer

• None of the above

Batch-type dryer that circulates or mixes the grains during drying.

• Vertical-bin dryer

• Recirculating dryer

• Flat-bed dryer

• None of the above

Air chamber maintained under pressure and is usually connected to one or more distribution ducts in a drying system.

• Drying bin

• Plenum chamber

• Air duct

• None of the above

Pressure built up in the plenum chamber used to maintain uniform distribution of airflow throughout the mass of grains.

• Velocity pressure

• Static pressure

• Dynamic pressure

• Any combination of the above

Component of a dryer that converts the velocity pressure of the fan to static pressure.

• Drying bin

• Plenum chamber

• Manometer

• None of the above