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Defence & Security: Defense Systems & Aerospace PYQ.

UPSC Prelims previous year questions on Defense Systems & Aerospace (Defence & Security) — real questions with answers and explanations.

2 questions · sorted by year
2025Pairs/Matching (How Many Style)Defense Systems & Aerospace

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?

A.Only one
B.Only two
C.All the three
D.None of the above
Explanation: * Pair I is correctly matched: The twin-engine turboprop Dornier-228 aircraft is deployed as a maritime surveillance and patrol aircraft by the Indian Navy and Coast Guard. * Pair II is not correctly matched: The Ilyushin Il-76 is a four-engine strategic airlifter designed for heavy cargo and troop transport, not a supersonic combat aircraft. * Pair III is correctly matched: The Boeing C-17 Globemaster III is a versatile, large military transport aircraft utilized by the IAF for strategic and tactical airlift missions.
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2024Multi-statement (How Many Style)Defense Systems & Aerospace

Consider the following aircraft: 1. Rafale 2. MiG-29 3. Tejas MK-1 How many of the above are considered fifth generation fighter aircraft?

A.Only one
B.Only two
C.All three
D.None of the above
Explanation: * (d) None is correct: None of the listed aircraft are classified as fifth-generation fighter jets. Fifth-generation fighters are characterized by advanced all-aspect radar stealth, internal weapons bays, and sensor fusion. * Item 1 (Rafale) is classified as a generation 4.5 multirole jet fighter. * Item 2 (MiG-29) is a generation 4 air-superiority jet designed by the Soviet Union. * Item 3 (Tejas MK-1/1A) is an indigenously manufactured Indian light combat aircraft categorized as a generation 4+ fighter.
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