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

Lists Dornier DO-228 among Indian Airlines' fleet, showing the type exists in Indian civil aviation service.

A student could note that an aircraft type used civilly often has multiple variants (civil/military) and look up whether military versions or maritime variants of the DO-228 exist or are procured by defence services.

Explains Airport Authority of India operates both civil enclaves and defence airfields, indicating aircraft of a given type can be operated in civil or defence roles.

Combine this with knowledge of where Dornier-228s are based to check whether any are assigned to defence airfields (suggesting military/maritime use).

Describes India's extensive coastline and strategic maritime location, implying a practical need for maritime patrol capabilities.

Given the maritime security requirement, a student could investigate which small aircraft types (e.g., light turboprops like the DO-228) are typically used for maritime patrol and whether India equips DO-228s for that role.

Defines 'Defence of India' and explicitly lists naval, military and air forces, highlighting that maritime (naval) surveillance is a defence responsibility.

A student could use this to justify checking defence procurement records or service inventories (Navy/Coast Guard) for DO-228 maritime patrol variants.

Mentions 'HAL Tejas Light Combat Aircraft' as an example of defence manufacturing, distinguishing a class called 'Light Combat Aircraft' (i.e., combat aircraft) within defence sector examples.

A student can use this pattern (combat aircraft = category name) to check whether the IL-76 is listed as a combat aircraft or in a different category (e.g., transport) in standard aircraft reference sources.

Provides a concrete example of a fighter jet (MiG-21 Bison) used in combat operations, implying that fighter/combat jets are the type that engage in dogfights and are often supersonic.

A student can compare the role and typical speed class of MiG-21-style fighters with the IL-76 by consulting basic aircraft role descriptions to see if IL-76 matches 'fighter/supersonic' characteristics.

Defines supersonic aircraft by capability (examples: supersonic aircraft cover long distances much faster), giving a functional clue about what 'supersonic' means in aviation context.

A student can use this definition to test whether the IL-76's stated cruise/maximum speeds (from an external technical source) meet the supersonic threshold.

Lists the kinds of large passenger/transport aircraft used by Air India (B747, A310, etc.), indicating a recognizable class of large subsonic transport/airliner aircraft distinct from combat fighters.

A student can use this distinction to ask whether the IL-76 is more similar in role/size to these transports or to fighter jets like the MiG-21, helping eliminate or support the 'supersonic combat' label.

Describes civil aviation roles and fleet types (airport authority, carriers, licensing), underscoring that aircraft are classified by role (civil transport vs military combat).

A student can extend this role-based classification to check authoritative lists/classifications to see whether IL-76 is catalogued as a military transport or as a combat/supersonic aircraft.