NDA (I) 2021 GAT Q124: Which one of the following Oil Refineries is not located in

Q: What is the answer to NDA (I) 2021 GAT Q124?

A. Correct — A, Tatipaka. The Tatipaka refinery is a small ONGC refinery in the Godavari delta of Andhra Pradesh — not in Assam. The other three are all Assam refineries: Numaligarh (Golaghat district), Bongaigaon, and Digboi (India's oldest operating refinery). So Tatipaka is the odd one out.

NDA (I) 2021 General Ability Test · Question 124 of 149

Question text verified against the official NDA question paper.

Which one of the following Oil Refineries is not located in Assam?

(a)Tatipaka
(b)Numaligarh
(c)Bongaigaon
(d)Digboi

Answer

Why

Correct — A, Tatipaka. The Tatipaka refinery is a small ONGC refinery in the Godavari delta of Andhra Pradesh — not in Assam. The other three are all Assam refineries: Numaligarh (Golaghat district), Bongaigaon, and Digboi (India's oldest operating refinery). So Tatipaka is the odd one out.

Why the others are wrong

(b)Numaligarh — Numaligarh, run by Numaligarh Refinery Ltd in Golaghat district, is in Assam — so it does not answer a 'not in Assam' question.
(c)Bongaigaon — The Bongaigaon refinery is located in Assam, so it is not the exception.
(d)Digboi — Digboi, in Assam, is India's oldest operating oil refinery (from 1901), so it is very much an Assam refinery.

Concept

India's north-east, especially Assam, is a historic oil region — the country's petroleum industry began at Digboi. Assam hosts several refineries (Digboi, Guwahati, Bongaigaon and Numaligarh), while other refineries are spread across states. Tatipaka is a small ONGC refinery in Andhra Pradesh's Godavari basin.

This is an odd-one-out based on location. Digboi, Numaligarh and Bongaigaon are firmly linked to Assam in standard geography; recognising Tatipaka as an Andhra Pradesh (Godavari delta) refinery gives the answer.

Key facts

Tatipaka refinery is in Andhra Pradesh (Godavari delta), operated by ONGC — India's smallest refinery.
Digboi (Assam) is India's oldest operating oil refinery, dating from 1901.
Numaligarh (Golaghat) and Bongaigaon refineries are both in Assam.
Assam is the cradle of India's petroleum industry.

Study next

Oil refineries of India and their statesThe oilfields of Assam (Digboi, Naharkatiya, Moran) and the north-eastPublic-sector oil companies: IOC, ONGC, BPCL, HPCLDistribution of India's mineral and energy resourcesHistory of the Indian petroleum industry

Common traps

Assuming every north-east-sounding refinery name is in Assam.
Confusing refineries (which process crude) with the oilfields that produce it.

Asked as an odd-one-out on location, or by matching refineries/oilfields to their states.

Related PYQs

No directly related past PYQ was found.

Practice

practice — not a real PYQ
India's oldest operating oil refinery is located at
- (a)Digboi
- (b)Koyali
- (c)Barauni
- (d)Mathura
Answer(a) Digboi — in Assam, operating since 1901.
practice — not a real PYQ
The Tatipaka refinery is located in which state?
- (a)Assam
- (b)Andhra Pradesh
- (c)Gujarat
- (d)Odisha
Answer(b) Andhra Pradesh — a small ONGC refinery in the Godavari delta.