What is a continuous flow dryer?
A
A dryer that uses solar energy only
B
A dryer where grain moves continuously while being dried
C
A dryer that stores grain before drying
D
A dryer used only for vegetables
Analysis & Theory
In a continuous flow dryer, grains pass through the drying chamber in a steady stream, allowing for uninterrupted drying.
Which of the following is a major advantage of continuous flow dryers?
C
High drying capacity and efficiency
D
Manual stirring required
Analysis & Theory
Continuous flow dryers offer high efficiency and can handle large volumes of grain.
Which component is essential in moving grains in a continuous flow dryer?
Analysis & Theory
Grains are continuously moved through the dryer using augers, conveyors, or gravity.
What type of airflow is typically used in continuous flow dryers?
B
Counter-current or concurrent airflow
Analysis & Theory
Dryers may use counter-current (air against grain flow) or concurrent (same direction) airflow to optimize drying.
Which of the following grains is commonly dried using a continuous flow dryer?
Analysis & Theory
Paddy, maize, and similar cereals are often dried in continuous flow dryers at high volumes.
In a continuous flow dryer, grain drying occurs:
A
Only in the storage bin
C
As it flows through the drying column
Analysis & Theory
Grains are dried during their passage through the heated air column.
What happens to the moisture content of the grain in a continuous flow dryer?
A
Increases during drying
Analysis & Theory
Moisture content decreases steadily as grains are exposed to hot air while flowing.
Which part of a continuous flow dryer helps in air movement?
Analysis & Theory
Air ducts and blowers direct hot air into the drying chamber for effective moisture removal.
Which of the following is a challenge with continuous flow dryers?
C
High initial cost and maintenance
Analysis & Theory
Though efficient, continuous flow dryers often require high investment and regular maintenance.
Why is uniform grain flow important in continuous flow dryers?
C
To ensure even drying and prevent over/under-drying
Analysis & Theory
Consistent grain movement ensures that all grains receive uniform drying exposure, maintaining quality.