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GATE- AG Agricultural Engineering Exam Pattern

Exam Pattern

The GATE exam will be conducted by an ONLINE Computer Based Test (CBT). In all the papers, there will be a total of 65 questions carrying 100 marks, out of which 10 questions carrying a total of 15 marks are in General Aptitude (GA). In GATE- AG: Agricultural Engineering the Engineering Mathematics will carry around 15% of the total marks, the General Aptitude section will carry 15% of the total marks and the remaining 70% percentage of the total marks is devoted to the subject of the paper.

Multiple Choice Questions (MCQ) carrying 1 or 2 marks each in all papers and sections. These questions are objective in nature, and each will have a choice of four answers, out of which the candidate has to mark the correct answer(s).

Numerical Answer Questions of 1 or 2 marks each in all papers and sections. For these questions the answer is a real number, to be entered by the candidate using the virtual keypad. No choices will be shown for this type of questions.

General Aptitude (GA) Questions

In all papers, GA questions carry a total of 15 marks. The GA section includes 5 questions carrying 1 mark each (sub-total 5 marks) and 5 questions carrying 2 marks each (sub-total 10 marks).

Engineering Mathematics and Subject Knowledge

These papers would contain 25 questions carrying 1 mark each (sub-total 25 marks) and 30 questions carrying 2 marks each (sub-total 60 marks).  

Note on Negative Marking for Wrong Answers

For a wrong answer chosen for the multiple choice questions, there would be negative marking. For 1-mark multiple-choice questions, 1/3 mark will be deducted for a wrong answer. Likewise, for 2-mark multiple-choice questions, 2/3 mark will be deducted for a wrong answer. However, there is no negative marking for a wrong answer in numerical answer type questions.

Test duration- 3 hours

Marking System – For 1-mark multiple-choice questions, 1/3 mark will be deducted for a wrong answer. Likewise, for 2-marks multiple-choice questions, 2/3 mark will be deducted for a wrong answer. There is no negative marking for numerical answer type questions.

Syllabus Summary

No. Of Subject 8
No. Of Unit 30
No. Of Chapter 153
  1. Design of irrigation channels and underground pipelines
  2. Irrigation Scheduling
  3. Irrigation Methods
  4. Irrigation Efficiencies
  1. Types of wells
  2. Classification Of Pumps
  3. Pump Characteristics
  4. Pump Selection And Installation
  1. Drainage coefficient
  2. planning, design of drainage systems
  3. leaching requirement and salinity control
  4. Irrigation And Drainage
  1. Groundwater Hydrology
  2. Darcy’s Law
  3. Evaluation of aquifer
  1. Water requirement of crops
  2. Measurement Of Infiltration
  3. Consumptive use and evapotranspiration
  1. Psychrometry
  2. Concentration And Drying Of Liquid Foods
  3. Hydrothermal Treatment
  4. Drying And Milling Of Cereals, Pulses And Oilseeds
  1. Controlled and modified atmosphere storage
  2. Perishable food storage
  1. Processing and By-product Utilization
  2. By-product utilization from processing industries
  1. Mechanics And Energy Requirement In Size Reduction Of Granular Solids
  2. Particle Size Analysis For Comminuted Solids
  3. Size Reduction and Conveying
  4. Fluidization Of Granular Solids
  5. Cleaning And Grading
  6. Effectiveness Of Grain Cleaners
  7. Centrifugal Separation Of Solids, Liquids And Gases
  1. Design and selection of machine elements
  2. overload safety devices used in farm machinery
  3. measurement of force, torque, speed, displacement and acceleration on machine elements
  1. Soil tillage
  2. Forces acting on a tillage tool
  3. Hitch systems and hitching of tillage implements
  4. Functional requirements, principles of working, construction and operation of manual, animal and power operated equipment
  5. Testing of agricultural machinery and equipment
  6. Calculation of performance parameters - field capacity, efficiency, application rate and losses
  7. Cost analysis of implements and tractors
  1. Engineering properties of soils
  2. Fundamental definitions and relationships
  3. Index properties of soils
  4. Permeability and seepage analysis
  5. Shear strength
  6. Stability of slopes
  1. Hydrological cycle and components
  2. Meteorological parameters
  3. Runoff estimation
  4. Hydrograph analysis
  5. Stream flow measurement
  6. Flood routing, hydrological reservoir and channel routing
  1. Measurement of distance and area
  2. Instruments For Surveying And Leveling
  3. Chain Surveying, Methods Of Traversing
  4. Measurement of angles and bearings
  5. Types Of Leveling
  6. Theodolite Traversing
  7. Contouring
  8. Computation Of Areas And Volume
  1. Watershed characterization
  2. Land Use Capability Classification
  3. Rainwater Harvesting Structures,Check Dams And Farm Ponds
  1. Mechanics of soil erosion
  2. Soil Loss Estimation
  3. Biological And Engineering Measures
  4. Terraces And Bunds
  5. Vegetative Waterways
  6. Gully Control Structures
  7. Earthen Dams
  1. Ideal and real fluids, properties of fluids
  2. Hydrostatic pressure and its measurement
  3. Continuity equation
  4. Bernoulli’s theorem
  5. Darcy- Weisbach and Hazen-Williams equations
  6. Flow through orifices and notches
  7. Flow in open channels
  8. Hydrostatic forces on plane and curved surface
  1. Limits, continuity and differentiability
  2. Partial Derivatives
  3. Maxima and Minima
  4. Tests for Convergence
  5. Fourier Series
  6. Taylor series
  7. Sequences and Series
  1. Linear and non-linear first order Ordinary Differential Equations (ODE)
  2. Higher order linear ODEs with constant coefficients
  3. Cauchy’s And Euler’s Equations
  4. Laplace transforms
  5. Partial Differential Equations - Laplace, heat and wave equations
  1. Matrices and determinants
  2. Systems of Linear Equations
  3. Eigen values and eigen vectors.
  1. Gradient
  2. Divergence and Curl
  3. line
  4. Surface and Volume Integrals
  5. Stokes, Gauss and Green’s theorems
  1. Mean, median, mode and standard deviation
  2. Random Variables
  3. Poisson, Normal And Binomial Distributions
  4. Correlation And Regression Analysis
  5. Tests of significance, analysis of variance (ANOVA)
  1. Solutions Of Linear And Non-Linear Algebraic Equations
  2. Numerical integration - trapezoidal and Simpson’s rule
  3. Numerical solutions of ODE
  1. Numerical computation
  2. Numerical Estimation
  3. Numerical Reasoning
  4. Data Interpretation
  1. English grammar
  2. Sentence Completion
  3. Verbal Analogies
  4. Word Groups
  5. Instructions
  6. Critical Reasoning
  7. Verbal Deduction
  1. Kinetics of microbial death
  2. Preservation of Food
  3. Refrigeration and cold storage applications
  1. Steady state heat transfer
  2. Transient heat transfer
  3. Working principles of heat exchangers
  4. Diffusive and convective mass transfer
  5. Simultaneous heat and mass transfer
  6. Material and energy balances
  7. Water activity
  8. Desorption isotherms
  1. Type, selection, maintenance and repair of tractors and powertillers
  2. Power transmission systems
  3. Mechanics of tractor chassis
  4. Traction theory
  5. Three point hitches
  6. Mechanicalsteering and hydraulic control systems used in tractors
  7. Tractor tests and performance
  8. Human engineering and safety in design of tractor and agricultural implements
  9. Tractor clutches and brakes
  1. Sources of power on the farm - human, animal, mechanical, electrical, wind, solar and biomass
  2. bio-fuels
  1. Thermodynamic principles of I.C. engines
  2. I.C. engine cycles
  3. Engine components
  4. Fuels and combustion
  5. Lubricants and their properties
  6. Selection, operation, maintenance and repair of I.C. engines
  7. Power efficiencies and measurement
  8. Calculation of power, torque, fuel consumption, heat load and power losses
  9. I.C. engine systems

How to prepare

Preparation Strategy

Make a proper Time Table

It is very important that you make a time table and stick to it and you will have an exact idea of what you are required to study and the time required for it.

Concept clarity rather than rote learning

It is essential that you have a clear idea of the formulas and concepts rather than rote learning of things for the papers. While you might require it for memorizing formulas it is important that for other stuff you make sure you clear your basis and concepts before moving on.

Prepare Notes

It is very important make small notes or a comprehensive list of formulas on each covered topic and chapter which will come in handy at the time of revision. This will require you to be regular with your work but will surely make things easy at the time of revision.

Seek guidance

It is not possible for you to know everything in your syllabus, at least not at the time of preparation. Sooner or later you will run into a concept or so which will give you trouble and then it is best you seek guidance from an instructor or a teacher. It is necessary that you clear your doubts at regular intervals and don’t prolong things for long. Getting into a good coaching class is nothing to be ashamed off and if anything a regular coaching class will enable you to avoid roadblocks in your preparation.

Sample Papers

Even though there may be a complete change in the exam pattern or the expected questions altogether,it is important that you practice on the sample and previous years question papers available for the engineering exam you’d be attempting. You will know the existing pattern and have a fair idea of the type of questions to expect in the paper along with the time constraint.

Mock tests

The paper pattern, duration of the paper and the number of questions to be attempted in the given amount of time is not something you will be able to pick up on the day of the examination. A Mock Test tests a student’s abilities as it not only provides a similar feel of real exams but also helps in building speed and confident to face the exam. Furthermore, they can improve their performance to get an extra edge in actual exams. Try to build up an Engineering Entrance Exam Test Prep MCQ Question Bank

Time management

Time management can be learnt through thorough practice and regular test taking. So it is important that you practice it and practice it well.

Negative marking

Most the entrance examinations will have negative marking and everyone would suggest you stay clear of questions are not sure about. But some experts are of the opinion that you answer the questions in which you are confused between an option or two because there will also be a chance of getting it right.

Duration : 3 Hours

Important Instructions

Filling in Application Online 1. GOAPS: GATE Online Application Processing System (GOAPS website) has the web address It can also be accessed from the website of the respective Zonal GATE Offices or from the website of the GATE 2016 Organizing Institute. 2. Registration: A candidate must first register by providing a valid email address, mobile number and a GOAPS password. All communications from the GATE Offices will be sent to this email address (ONLY ONE PERSON CAN REGISTER WITH ONE e-mail ADDRESS). Give your personal mobile number because most of the communications may also be sent via SMS. GOAPS Password: The candidate chooses a password during Enrollment at GOAPS. This password must be remembered along with the GOAPS Enrolment ID to login to GOAPS. It is strongly encouraged to choose a password that cannot be guessed easily (it should not be the candidate’s name, date of birth, or some easily guessable string of numbers or letters like 12345 or abcd). 3. GOAPS Enrollment ID: Upon registration, an email containing the GOAPS Enrolment ID will be sent to the candidate. 4. Data Requirement for Application Filling: The following data will be required while filling the form at GOAPS. a) Personal information (name, date of birth, your personal mobile number, parents’ name, parents’ mobile number, etc.). b) Address for Communication (including PIN code), c) Eligibility degree details 13 d) College address, PIN code of college, e) GATE paper, choice of GATE examination cities, f) High quality image of your photograph conforming to the requirements specified in along with what type of photograph is accepted . g) Good quality image of your signature conforming to the requirements specified in h) Scanned copy of Degree Certificate or Certificate from Principal/HODs in pdf format. i) Scanned copy of Category/PwD Certificate (if applicable) in pdf format. j) Details of a valid ID Proof that you will carry to the examination hall. k) Your net-banking details. 5. Application Filling: The GOAPS allows you to enter data, “Save” partially filled form, “Logout”, and resume filling in by logging in again. The GOAPS portal is self-explanatory and user-friendly. Online help about using GOAPS is also available. 6. Before you make the payment, you will be shown a “Preview” of your application, where you have to carefully check for any errors. 7. Once you press “Confirm and Final Submit” button, no further changes to the application can be made by you. 8. For online payment follow the instructions given in Section for payment options. 9. Problems in Login into GOAPS –In case of forgotten user ID or password, follow instructions on the GOPAS portal to retrieve them.