GATE 2021 Production and Industrial (PI) Answer Key (Out) – Check Here Question Paper and Solutions

GATE 2021 Production and Industrial (PI) Answer Key – IIT Bombay has released GATE Production and Industrial answer key 2021 online at It is released in the pdf format for all 27 paper under candidate login. Using GATE 2021 PI answer key and marking scheme of GATE 2021, candidates can estimate their GATE 2021 score. For more details on GATE 2021 Production and Industrial (PI) answer key, read below.

Latest: GATE 2021 Production and Industrial (PI) answer key and question paper has been released by IIT Bombay. Check it below.

GATE 2021 Production and Industrial (PI) Answer Key Dates

Candidates can expect that the GATE 2021 answer key can be available within 10 days of the exam. You can check some important dates below:

GATE 2021 Answer KeyDates
GATE 2021 exam dates06, 07, 13, 14 Feb 2021
GATE 2021 answer key26 Feb 2021
GATE result declaration22 Mar 2021
Last date to download scorecard31 May 2021

Official GATE 2021 PI Answer Key

Answer key of GATE 2021 is released in PDF format by conducting IIT at the official website, The official answer key is released a few days after the exam is over. However, the memory-based answer keys are out on the same day as the exam.

SubjectAnswer Key
Production and Industrial Engineering (PI)Check Here

These keys are the authentic source of correct answers to all the questions asked in the exam. The candidates can challenge the official answer key and if the challenges are accepted the final answer key is published. Based on the final answer keys of GATE the result is prepared.

GATE 2021 Question Paper

IIT B uploads the question paper of GATE 2021 online on the official website, The question papers can be downloaded in PDF format for all the 27 GATE subjects papers. GATE question papers are an important source of preparation for the upcoming GATE attempts. The question papers combined with the answer keys can be used by the students checking their probable score in the exam, before the result of the exam is out.

SubjectQuestion Paper
Production and Industrial Engineering (PI)Check Here

How to Download GATE 2021 Official Answer Key

Here is how you can download GATE 2021 official answer key:

  • 1st step: Go to, there is no need to login at GOAPS.
  • 2nd step: Next, locate the link for answer key of GATE 2021.
  • 3rd step: Then, locate the subject paper for which you appeared in GATE 2021.
  • 4th step: After that, click on the answer key link corresponding to your subject paper name.
  • 5th step: The answer key is downloaded in your system as PDF file.
  • 6th step: Use the same to evaluate a probable score in the exam.

How to Calculate Score Using GATE 2021 Answer Key?

Using the answer key of GATE 2021 to calculate the score is easy and can be done with the help of the below steps:

Step 1: You have to first download the GATE 2021 answer key for your subject paper.

Step 2: Also, download the GATE 2021 response sheet and question paper of GATE 2021. IIT releases the question paper and response sheet too on the official website

Step 3: Now, match the responses given in the answer from the response mentioned in the response sheet.

Step 4: Next, the candidates need to add or deduct marks, as per the marking scheme. It is as follows:

Type of questionsNegative Marking
MCQs and MSQs– 1/3rd Mark will be deducted for 1 mark question
– 2/3rd Mark will be deducted for 2 mark question
NATsNo negative marking

Step 5: When marks are added or deduct for all the questions, candidates get their estimated score of GATE.

GATE Production and Industrial (PI) Paper Cut Off

The cutoff of GATE PI paper will be available with the result. However, we have given below the cutoffs from last year in the table below:

YearGATE PI paper cutoff
GATE PI paper cutoff
GATE PI paper cutoff
(SC / ST / PwD)

GATE 2021 Result

The GATE result is calculated on the basis of the final answer key published on the official website, once all the challenges against the answer key have been resolved. Candidates can download the result by using login id and password from GOAPS.

Only those candidates who score more than or equal to the qualifying marks are able to download their GATE Scorecards. The scorecards are available for download online one week after the declaration of the results. The candidates are advised to keep a printout of their Scorecards for future procedures of admissions and/or recruitment.

GATE 2021 Production and Industrial (PI) Answer Key

The memory based GATE 2021 answer key is available in various formats like images, texts, videos and PDFs. All shall be available here once the test is over.

  • Exam Date – February 7, 2021
  • Time – 3:00 pm to 6:00 pm
  • Subject Paper – Production and Industrial (PI)
  • GATE 2021 Result Date: 22 March 2021

If you appeared for GATE 2021 PI paper, then submit your questions and we will provide you the answer key. Click on the button below to submit answers. All the best!

Check GATE 2021 PI memory based questions and answers below:

Q: The frequency of pulsing in Die sinking electric discharge machining is 10 KHz. The pulse of timing is 40 μsec. The duty factor is?

Q: A 3.5 mm thick sheet is rolled using 2 high rolling mill to reduce the thickness under plain strain condition. Both rolls have the diameter of 500 mm and are rotating at 200 rpm. The coeff of friction between the sheet and the roll interface is 0.08. Assume the elastic deformation is negligible. If the mean flow stress of the material is 400 MPa. Then the minimum possible thickness is:
Ans: 1.9 mm

Q: A cylindrical mild steel tensile test specimen of gauge length 50 mm and the diameter 10 mm. It is stretched in 2 stages with drawing speed of 4 mm / min. In first stage 50 mm to 55 mm and in the second 55 mm to 60 mm. Determine the total true strain.

Q: Go and no-Go gauges are designed for a shaft 36.00 mm. Gauge tolerance can be taken as 5% of the working tolerance. Following the ISO system find the dimension of go and no-go gauge.

Q: A pin-ended steel coloumn of 2 m length with flexural rigidity 2000 Nm2. The critical axial load in Kn is?

Q: In an air standard otto cycle, the heat is added in constant volume process is 80 KJ. The heat is rejected at constant volume is 381 KJ. Determin the efficiency of the cycle.

Q: The tool of an MC machine has to move along a circular arc of radius 10 from (10,10) to (20, 20) while preforming an operation. Which of the following NC-Tool path command is correct?

Q: In a machining operation, doubling the cutting piece reduces the toll life to 1/8th of the original value. The exponent ‘n’ in Taylor’s tool life expression VTn=c is?

You can also check: GATE answer keys for all 27 papers

GATE 2021

Graduate Aptitude Test in Engineering (GATE) is a national level entrance exam. One of the IITs is responsible to conduct the exam annually for admission in PG and doctoral level engineering courses offered by the IITs and the IISc. GATE 2021 is being conducted by IIT Bombay.

GATE 2021 scores remain valid for the years 2021, 2022, and 2023. The candidates can use the score for admission in the course of their choice or they can apply for PSU recruitment too via the score. The candidates can apply in the PSUs like BHEL, NTPC, ONGC, COAL India, GAIL, SAIL, etc.

GATE 2021 Production and Industrial (PI) Answer Key FAQs

How do I download the GATE answer key?

When the official answer key releases, candidates will have to visit the official GATE 2021 website,, and download the answer key PDF.

How to use GATE answer key to calculate the scores?

You have to use the marking scheme of the exam ti calculate score using the GATE answer key.

When will GATE 2021 answer key be released?

When the official answer key releases, candidates will have to visit the official GATE 2021 website,, and download the answer key PDF.

Official website:

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