UPSC Prelims 2025 GS Paper I · Q64 of 99 General Science medium

With reference to India's defence, consider the following pairs : Aircraft type : Description I. Dornier-228 : Maritime patrol aircraft II. IL-76 : Supersonic combat aircraft III. C-17 Globemaster III : Military transport aircraft How many of the pairs given above are correctly matched?

  1. (a) Only one
  2. (b) Only two ✓ UPSC's answer
  3. (c) All the three
  4. (d) None

Why the answer is (b)

• Pair I is correct: the HAL-built Dornier-228 is a light twin-turboprop used by the Navy and Coast Guard for maritime patrol and surveillance.

• Pair III is correct: the Boeing C-17 Globemaster III is the IAF's heavy strategic transport aircraft, used for airlifting troops, tanks and relief supplies.

• Pair II is wrong: the Russian Ilyushin IL-76 is a four-engine heavy transport aircraft (also the base for the IAF's IL-78 tanker and Phalcon AWACS); it is not a supersonic combat aircraft.

• India's supersonic combat aircraft include the Su-30MKI, Rafale, MiG-29, Mirage 2000 and Tejas.

• Hence two pairs are correct, option (b).

Why the other options are wrong

(a) Only one
Both the Dornier-228 and C-17 pairs are correct, so the count is two.
(c) All the three
The IL-76 is a transport aircraft, not a supersonic fighter.
(d) None
Two of the pairs are correctly matched.

Asked in the GS Paper I of the UPSC Civil Services Preliminary Examination 2025, held on 25 May 2025. Question and answer key: Union Public Service Commission. Explanation: UPSC Answer Check.

Reading the answer is not the same as getting it right under a clock. Practise this question with UPSC's negative marking, and anything you miss goes into an error notebook until you get it right twice.

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