Allied & ICAR Exam Bank • ALLIED_0646 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Oilseed Processing

Subtopic: Oilseed Processing

Question Statement:

In oilseed processing, a mechanical screw press (expeller) extracts oil by:

Options:

  • (A) Continuous progressive compression of prepared oilseed flakes inside a perforated barrel using an Archimedean worm shaft
  • (B) Dissolving oil in liquid nitrogen
  • (C) Subcritical water boiling
  • (D) Centrifugal vacuum separation

Answer Key:

A

Step-by-Step Solution & Explanation

Decreasing screw pitch and increasing worm diameter generate immense mechanical pressure (up to $200-300\text{ MPa}$), expelling oil through cage barrel bars.
← Previous (ALLIED_0645) Next (ALLIED_0647) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test