GATE Agricultural Process Engineering: Processing of Agricultural Produce – Previous Year Questions

8 GATE previous year questions on Processing of Agricultural Produce (Agricultural Process Engineering, Agricultural Engineering) with answers and explanations, from every paper.

1. GATE 2021 AG Q14 (1 mark, Multiple choice) – Pitting during pulse processing is .
2. GATE 2021 AG Q35 (1 mark, Numerical answer) – A Rushton turbine has 20 cm impeller diameter and 200 rpm stirrer speed. Air flow into the tank is .2 m³/min. Find the dimensionless Froude number, to…
3. GATE 2021 AG Q45 (2 marks, Multiple choice) – Match mechanisms P shear/compression;Q friction/abrasion;R shear/compression/friction;S impact/abrasion/friction, to 1 blade-type emery scourer,2…
4. GATE 2021 AG Q64 (2 marks, Numerical answer) – A 1 tonne/h two-screen air cleaner takes grain with 8.5% impurities. Clean-grain loss in blower, first-screen overflow, second-screen underflow is…
5. GATE 2024 AG Q23 (1 mark, Multiple select) – Which statements about hydrothermal treatment of paddy are incorrect?
6. GATE 2024 AG Q34 (1 mark, Numerical answer) – A rice grader receives feed containing18% broken kernels. The head-rice stream contains 3% brokens, and the broken stream contains 4% head rice. Find…
7. GATE 2025 AG Q23 (1 mark, Multiple choice) – In rice milling, the rubber-roll sheller is used for
8. GATE 2025 AG Q33 (1 mark, Numerical answer) – How much water must be added to 50 kg paddy to raise moisture from 13% to 35% dry basis during hydrothermal treatment? Report kg, to two decimals.