Question 1

What is the primary role of the INS Vikramaditya in the Indian Navy's operational strategy?

Accepted Answer

INS Vikramaditya is India's first aircraft carrier, commissioned in 2013. It serves as the flagship of the Indian Navy and is primarily used for power projection, naval air operations, and maintaining India's maritime security in the Indian Ocean Region.

Question 2

Which of the following is an air-to-air missile developed indigenously by India and is used by the Indian Air Force?

Accepted Answer

Astra is India's first indigenous air-to-air missile developed by the Defence Research and Development Organisation (DRDO). It has a range of approximately 80 km and is designed to be integrated with fighter aircraft like the Tejas and Su-30MKI.

Question 3

Which of the following is the primary propulsion system used in India's Arjun Main Battle Tank?

Accepted Answer

The Arjun MBT is powered by a MTU Friedrichshafen MB 838 Ka-501 diesel engine, which is a German-origin turbocharged engine. This engine provides approximately 1,400 horsepower and enables the tank to achieve speeds of up to 72 km/h.

Question 4

Which radar system is used by the Indian Air Force for long-range air defence and is based on the Phased Array technology?

Accepted Answer

The Rajendra radar is the primary 3D phased array radar used by the Indian Air Force for air defence. It is part of the Akash air defence system and can detect and track multiple aircraft simultaneously at long ranges.

Question 5

Which of the following is a key feature of the BrahMos missile system used by the Indian Defence Forces?

Accepted Answer

BrahMos is a supersonic cruise missile jointly developed by India and Russia. It is one of the fastest cruise missiles in the world with a speed of Mach 2.8 to 3.0 (approximately 2,100–2,300 km/h). The missile can be launched from multiple platforms including ships, submarines, aircraft, and ground-based systems, making it highly versatile for defence operations.

Question 6

Which Indian defence system is designed to detect and track aircraft, missiles, and other aerial threats using electromagnetic waves?

Accepted Answer

Radar (Radio Detection and Ranging) is a detection system that uses radio waves to identify the presence, direction, distance, and speed of objects. In defence applications, it is critical for air defence and surveillance.

Question 7

Which defence technology, developed by India's DRDO, is an air defence system designed to neutralize aircraft, helicopters, and unmanned aerial vehicles at medium range?

Accepted Answer

The Akash missile system is India's medium-range surface-to-air guided missile system developed by DRDO. It is designed to defend against aircraft, helicopters, and UAVs.

Question 8

Which of the following is the primary propulsion system used in India's Arihant-class submarines?

Accepted Answer

India's Arihant-class submarines, developed under the Advanced Technology Vessel (ATV) programme, are powered by a pressurized heavy-water moderated nuclear reactor. This makes them India's first indigenously designed and built nuclear-powered ballistic missile submarines (SSBNs). The nuclear propulsion allows for extended underwater endurance and strategic deterrence capability.

Question 9

Which principle of physics is utilized in stealth technology to reduce the radar cross-section of military aircraft and reduce their detection?

Accepted Answer

Stealth technology uses the principle of electromagnetic wave absorption and reflection manipulation. Materials and designs are engineered to absorb radar waves or reflect them away from the source, reducing the radar cross-section.

Question 10

The INS Vikramaditya, India's aircraft carrier, was originally built by which country before being acquired and refitted by India?

Accepted Answer

INS Vikramaditya is India's first aircraft carrier, originally built as the Admiral Gorshkov by the Soviet Union. It was acquired by India in 1998 and underwent extensive refitting before being commissioned in 2013.

Question 11

The BrahMos missile, a joint development between India and Russia, is primarily classified as which type of missile?

Accepted Answer

BrahMos is a supersonic cruise missile developed jointly by India's DRDO and Russia's NPO Mashinostroyeniya. It is classified as a cruise missile and is one of the fastest cruise missiles in the world.

Question 12

India's Light Combat Aircraft (LCA) Tejas, which achieved Initial Operational Clearance (IOC) in 2013, was designed to replace which older fighter aircraft in the Indian Air Force?

Accepted Answer

The Tejas Light Combat Aircraft (LCA), developed by Hindustan Aeronautics Limited (HAL) under DRDO's supervision, achieved Initial Operational Clearance (IOC) on 29 January 2013. The Tejas was designed to replace the aging HAL HF-24 Marut and MiG-21 aircraft in the Indian Air Force. The Tejas is a fourth-generation, single-engine, multi-role combat aircraft with a delta-canard configuration. It has a maximum speed of Mach 1.6, combat radius of approximately 300 km, and can carry various air-to-air and air-to-ground weapons. As of 2024, the Tejas continues to be inducted into the IAF with the Mark-1A variant in development.

Question 13

India's Advanced Air Defence System (AADS), also known as which system, was jointly developed with Israel and became operational with the Indian Air Force in 2009?

Accepted Answer

The Advanced Air Defence System (AADS), officially known as the Barak air defence system, was jointly developed by India (DRDO) and Israel (Rafael Advanced Defense Systems). The system became operational with the Indian Navy in 2003 and with the Indian Air Force in 2009. Barak is a medium-range air defence system designed to protect naval vessels and land-based installations from aircraft, helicopters, and anti-ship missiles. The system uses phased array radar and can engage multiple targets simultaneously. As of 2024, Barak remains a critical component of India's air defence architecture.

Question 14

India's Ballistic Missile Defence (BMD) system, which achieved a successful test interception in 2007, is based on which technological principle for detecting and tracking incoming missiles?

Accepted Answer

India's Ballistic Missile Defence (BMD) system, developed by DRDO, achieved a successful test interception on 27 November 2007 when it intercepted an incoming target missile. The BMD system is based on phased array radar technology for detection and tracking of incoming ballistic missiles. The system consists of two tiers: the exoatmospheric tier (using Prithvi Air Defence—PAD missile) and the endoatmospheric tier (using Advanced Air Defence—AAD missile). Phased array radar allows for rapid scanning and simultaneous tracking of multiple targets without mechanical movement of the antenna, making it ideal for ballistic missile defence.

Question 15

The Integrated Guided Missile Development Programme (IGMDP) of India, which concluded in 2007, resulted in the development of five missile systems. Which of the following was NOT one of the five missiles developed under IGMDP?

Accepted Answer

The Integrated Guided Missile Development Programme (IGMDP) was India's most ambitious defence project, initiated in 1983 under Dr. A.P.J. Abdul Kalam's leadership. It concluded in 2007 and resulted in the development of five missile systems: (1) Prithvi (surface-to-surface), (2) Agni (intermediate-range ballistic), (3) Akash (air defence), (4) Trishul (air defence), and (5) Nag (anti-tank). BrahMos, though developed by DRDO, was developed through Indo-Russian collaboration outside the IGMDP framework and was not part of the original five missiles.

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