Subtopic: Processing of seeds, spices, fruits and vegetables
Question Statement:
In oilseed processing, the mechanical device utilizing a continuous rotating worm shaft inside a perforated barrel to express oil under high pressure is called an:
Options:
(A) Expeller (screw press)
(B) Attrition mill
(C) Disc huller
(D) Air classifier
Answer Key:
A
Step-by-Step Solution & Explanation
A mechanical expeller (continuous screw press) drives oilseeds through a tapering barrel by a rotating screw shaft, generating enormous compressive pressures that force oil out through the barrel cage slots.