UPSC Prelims 2025 GS Paper I · Q64 / 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.

Practise this paper free

Practise Prelims PYQs and the daily 21 free

Score the daily set, see your rank, and let Guru explain what you missed.

Start free

Already have an account? Log in