# GATE Agricultural Engineering (AG) Preparation Portal

> Free, comprehensive, and offline-capable preparation platform for the Graduate Aptitude Test in Engineering (GATE) in Agricultural Engineering (AG). Featuring 1,324 official Previous Year Questions (2007–2026), 50 full-length CBT mock tests (20 past papers and 30 custom full-length mocks) with authentic TCS-iON palette and scoring, an 8-section interactive formula revision sheet, a 181-subtopic syllabus tracker, and interactive engineering simulators.
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> Common Search Names & Query Aliases: GATE AG Prep, GATE Prep AG, GATE Prep Agricultural Eng, GATE Agri Prep, GATE AG Study, GATE Agricultural Preparation, Agri GATE Prep.
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> For the comprehensive syllabus and mathematical formula reference, see [llms-full.txt](https://gate-ag-prep-web.vercel.app/llms-full.txt).

## Core Modules & Navigation

- [Official CBT Mock Tests](https://gate-ag-prep-web.vercel.app/mocktest): 50 full-length 65-question / 100-mark mock papers with authentic 180-minute timer, TCS-iON palette states, instant scoring, percentile estimator, and step-by-step solutions.
- [Topic-Wise Practice Pool](https://gate-ag-prep-web.vercel.app/practice): Practice 1,324+ official GATE AG questions filtered by subject, topic, subtopic, difficulty level, and question format (MCQ, MSQ, NAT).
- [Complete Formula Revision Sheet](https://gate-ag-prep-web.vercel.app/formulas): Interactive formula revision system covering Farm Power, Soil and Water Conservation, Agricultural Processing, Dairy Engineering, and Engineering Mathematics with KaTeX mathematical formatting.
- [Syllabus & Weightage Tracker](https://gate-ag-prep-web.vercel.app/syllabus): Track progress across all 181 subtopics aligned with official GATE AG weightage distributions and 14-year trend analysis.
- [Concepts Learning Hub](https://gate-ag-prep-web.vercel.app/learninghub): Core engineering theory summaries, universal concept search, high-yield topic breakdowns, and agri-flowsheets.
- [Engineering Simulators](https://gate-ag-prep-web.vercel.app/simulators): Virtual interactive lab for Hydrology, Soil Water Balance, Tractor Mechanics, and Psychrometric processes.
- [Revision Flashcards](https://gate-ag-prep-web.vercel.app/flashcards): Spaced-repetition memory cards covering critical engineering constants, dimensions, definitions, and formulas.
- [Downloads Hub](https://gate-ag-prep-web.vercel.app/downloads): Dynamic on-the-fly plain-text/print-optimized A4 PDF exports and study materials.
- [Aspirants Community Forum](https://gate-ag-prep-web.vercel.app/community): Peer Q&A discussion board with mentor-verified solutions, LaTeX math input, and study strategies.
- [AI Agri-Engineering Tutor](https://gate-ag-prep-web.vercel.app/ai_tutor): Instant step-by-step mathematical problem solver tailored to GATE Agricultural Engineering questions.

## Official GATE AG Examination Pattern

- **Duration:** 180 Minutes (3.0 Hours)
- **Total Questions:** 65 Questions | **Total Marks:** 100.00 Marks
- **Sections:**
  - **General Aptitude (GA):** 10 Questions (15 Marks) — Q1 to Q5 (1 Mark each), Q6 to Q10 (2 Marks each).
  - **Technical Agricultural Engineering & Mathematics (AG):** 55 Questions (85 Marks) — Q11 to Q35 (1 Mark each), Q36 to Q65 (2 Marks each).
- **Question Types & Evaluation Rules:**
  - **Multiple Choice Questions (MCQ):** 1-mark correct (+1.0), incorrect (-1/3); 2-mark correct (+2.0), incorrect (-2/3).
  - **Multiple Select Questions (MSQ):** One or more correct options. Full marks (+1 or +2) awarded strictly for exact set match. No partial credit, zero negative marking.
  - **Numerical Answer Type (NAT):** Exact numeric value or accepted interval entered via virtual keypad. Zero negative marking.

## Technical Subject Domains

1. **Farm Power and Machinery (AG-FM):** Tractor engines and power transmissions, tractor mechanics, center of gravity, implement traction and hitching, primary and secondary tillage mechanics, seeding, planting, sprayers and dusters, harvesting and threshing machinery.
2. **Soil and Water Conservation Engineering (AG-SW):** Fluid mechanics, pipe flow, open channel hydraulics, hydrology, rainfall-runoff relationships, soil erosion mechanics and control structures, design of contour bunds and terraces, irrigation water management, ground water and well hydraulics, agricultural drainage.
3. **Agricultural Processing and Food Engineering (AG-AP):** Engineering properties of biological materials, psychrometry and psychrometric charts, grain drying kinetics and dryer design, size reduction laws (Rittinger, Kick, Bond), mechanical separation, material handling equipment, food preservation and cold storage.
4. **Dairy and Food Engineering (AG-DF):** Milk processing unit operations, pasteurization and sterilization kinetics, dairy plant layout, food rheology, thermal processing calculations, freezing, refrigeration cycles, evaporation and concentration.
5. **Engineering Mathematics (AG-EM):** Linear algebra, eigenvalues and eigenvectors, single and multivariable calculus, ordinary and partial differential equations, vector calculus, probability, numerical analysis.

## Qualifying Cutoff Benchmarks & Virtual Calculator

- **Historical Qualifying Cutoff Ranges (out of 100 Marks):**
  - General / Unreserved (UR): 25.0 to 29.5 Marks
  - OBC-NCL / EWS: 22.5 to 26.5 Marks
  - SC / ST / PwD: 16.5 to 19.5 Marks
- **Top Rank Benchmarks:** Scores of 60.00+ generally achieve All India Rank (AIR) in the top 30, qualifying for direct M.Tech admissions at IIT Kharagpur, IIT Roorkee, IARI, and PSU recruitments.
- **Virtual Scientific Calculator:** Physical calculators are forbidden. The official onscreen TCS-iON virtual scientific calculator is fully emulated and interactive within the GATE AG Prep Portal.