GATE 2020 Instrumentation (IN) Answer Key, Question Paper & Analysis

    Nikkil Visha Nikkil Visha
    Exams Prep Master

    GATE 2020 for Instrumentation Engineering (IN) paper was conducted on February 1, 2020 in the forenoon session. IIT Delhi has released  GATE 2020 Answer Keys  for IN. Candidates can visit the website to download the answer key along with the question paper. You can also raise objections against the answer key from Feb 19 to 21, 2020 by making a payment of INR 500. 

    The questions were conceptual in nature and more weightage was given to topics like Networks, Measurement, Control systems, Transducers, and Analog Circuits. As per the schedule, IIT Delhi will announce GATE 2020 Result on March 16. Meanwhile, candidates can check their rank  Using GATE Rank Predictor. 

    Also Read IIT Delhi Admission & Cut Off

    GATE 2020 Answer Key

    GATE 2020 Answer Key

    The answer key for Instrumentation Engineering is provided below. Candidates can download the answer key and check their responses. 

    YearInstrumentation Engineering
    2020Question PaperAnswer Key

    GATE IN Answer Key – Previous Year

    YearInstrumentation Engineering
    2019Question Paper Answer Key 
    2018Question Paper Answer Key 

    How to Download GATE 2020 Answer Key?

    1. Go to the official website
    2. Click on the GATE 2020 answer key
    3. Enter the required credentials namely issued enrollment ID and password.
    4. Download subject wise question paper and answer key

    How to challenge GATE 2020 Answer Key?

    1. Log into the GATE Online Application Processing System.
    2. Go through the guidelines given carefully.
    3. Agree by checking on the declaration. 
    4. Click on the “Contest Answer Key" tab to be able to pay and mail objections related to the answer.
    5. INR 500 has to be paid via an online portal provided for every question. NRI candidates of GATE will have to pay the US $10 per question being challenged.
    6. It is important to use the correct question number given in the question paper to challenge.
    7. Attach a justified proof for challenging the answer key.

    How to calculate GATE Score using the answer key?

    • Calculate the marks obtained in the correct answers and subtract the marks lost in incorrect answers due to negative marking.
    • The numerical questions have no negative marking.
    • GATE Score = Marks obtained for MCQs + Marks obtained for NAT questions
    • MCQ Marks: Total marks (1 marks) + Total marks (2 marks)
    • Total marks (1 marks) = 1 x number of correct answers – 1/3 x number of wrong answers
    • Total marks (2 marks) = 2 x number of correct answers – 2/3 x number of wrong answers
    • NAT Marks: Total marks (1 marks) + Total marks (2 marks)

    Check GATE Counselling Procedure

    GATE 2020 Paper Analysis

    GATE 2020 Paper Analysis

    • Timings: 9:30 am to 12:30 pm
    • Difficulty Level: Easy to Moderate
    • General aptitude section was relatively easy and had direct questions
    • The paper was moderately difficult having questions from Network and Control Systems and Signals which were easy to solve.
    • Questions from Digital and Micro Processor, Optical Instrumentation, Transducer, and Measurements, along with Engineering Mathematics were moderately difficult.
    • Analog circuits and Communication Systems were most difficult to attempt.
    • 10 and 11 Marks questions were asked from Networks and Digital & Micro Processor respectively.
    • 6, 7 or 8 mark questions were asked from Communication System, Optical Instrumentation, Control Systems, Transducer, Signal & Systems, Measurements.

    GATE 2019 Instrumentation (IN) Paper Analysis

    The subject wise weightage analysis given below is based on previous year Instrumentation Engineering GATE papers. This would help to understand the important topics in GATE Exam.

    GATE INTopic Covered1 Marks Questions2 Marks QuestionsTotal Questions
    Engineering Mathematics----426
    NetworksBasics of networks, two port networks, AC analysis, transient
    analysis, resonance
    Digital CircuitsLogic gates, sequential circuits, microprocessor213
    Signals and SystemsLaplace & Z-transform,Types of signals,sampling,DFT437
    Control SystemsStability, block diagram, time response analysis033
    MeasurementsPMMC, Bridges, instrument transformers246
    Analog CircuitsOPAMP based5611
    CommunicationFrequency modulation, amplitude modulation022
    TransducersFlow & Pressure measurement, temperature measurement,246
    Optical InstrumentationPhotodetector011
    Process ControlBasics, controllers202
    Numerical Ability----336
    Verbal Ability224

    GATE 2020 Expected Cut off

    • GATE Participating Institutes (IITs, NITs and other colleges) will announce their separate GATE cut offs.
    • GATE Cut Off will be separate for qualifying the exam and for admissions.
    • As no common GATE counselling is held, each participating institute determine cut off to shortlist candidates for admissions.
    Instrumentation Engineering (IN)36.593424.60

    Check GATE Participating Institutes with fees

    Importance of GATE Exam

    GATE is not only important an eligibility exam for admission to M.Tech. programs but the exam’s scores are accepted by various top PSUs for recruitment of graduate trainees/management trainees. Know more



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