Question 1

What is the primary purpose of the Ballistic Missile Defence (BMD) system developed by India?

Accepted Answer

India's BMD system is designed to detect, track, and intercept incoming aircraft, cruise missiles, and ballistic missiles. It is a multi-layered air defence system, not specifically for offensive strikes or submarine detection.

Question 2

Which Indian defence technology is used for underwater surveillance and detection of submarines?

Accepted Answer

SONAR (Sound Navigation and Ranging) is the primary technology used for underwater surveillance and submarine detection. It uses sound waves to detect and locate objects underwater.

Question 3

Which of the following is India's indigenous aircraft carrier commissioned by the Indian Navy?

Accepted Answer

INS Vikrant is India's first indigenous aircraft carrier, commissioned on 2 September 2022. It is a 40,000-tonne carrier built by Cochin Shipyard and is named after the first aircraft carrier of independent India.

Question 4

Which of the following is a key feature of India's Ballistic Missile Defence (BMD) System?

Accepted Answer

India's Ballistic Missile Defence System, also known as the 'Integrated Guided Missile Development Programme' outcome, consists of two-tier air defence capability. The system includes the Advanced Air Defence (AAD) missile for high-altitude interception and the Prithvi Air Defence (PAD) missile for exo-atmospheric interception. This two-tier system was successfully tested and operationalized to protect against aircraft, cruise missiles, and ballistic missiles.

Question 5

Which of the following is a hypersonic cruise missile developed by India for defence purposes?

Accepted Answer

BrahMos is a supersonic cruise missile, not hypersonic. Hypersonic refers to speeds exceeding Mach 5. India's hypersonic missile programme includes the Hypersonic Technology Demonstrator Vehicle (HSTDV), which was successfully tested in 2023.

Question 6

What does 'Stealth Technology' in defence systems primarily aim to achieve?

Accepted Answer

Stealth technology is designed to make military aircraft, ships, and other platforms difficult to detect by radar, infrared, and other sensors. It reduces the radar cross-section and thermal signature of the platform.

Question 7

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

Accepted Answer

The INS Arihant, India's first indigenously designed and built nuclear-powered ballistic missile submarine (SSBN), is propelled by a pressurized heavy-water reactor (PHWR)-based nuclear propulsion system. This reactor provides the submarine with virtually unlimited underwater endurance and forms the backbone of India's sea-based nuclear deterrent under the Nuclear Command Authority.

Question 8

The INS Vikrant, India's first indigenous aircraft carrier, was commissioned into the Indian Navy in which year?

Accepted Answer

INS Vikrant, India's first indigenously designed and built aircraft carrier, was commissioned on September 2, 2022. It is a 40,000-tonne carrier equipped with advanced combat systems and can operate MiG-29K fighter jets and helicopters. The ship was built by Cochin Shipyard Limited.

Question 9

The Brahmos missile, a joint venture between India and which country, is a supersonic cruise missile with a speed of approximately Mach 2.8 to 3.0?

Accepted Answer

BrahMos is a joint venture between India's Defence Research and Development Organisation (DRDO) and Russia's NPO Mashinostroyeniya. The missile is named after two rivers: Brahmaputra (India) and Moskva (Russia). It is one of the fastest cruise missiles in the world, with a speed of Mach 2.8-3.0.

Question 10

Which of the following is an indigenously developed anti-tank guided missile system used by the Indian Army?

Accepted Answer

The Nag missile is India's third-generation, fire-and-forget anti-tank guided missile developed by DRDO. It uses imaging infrared seeker technology and has a range of 4-5 km. It is mounted on the Namica (Nag Missile Carrier) platform for deployment.

Question 11

The Arjun Main Battle Tank, developed by India's Defence Research and Development Organisation (DRDO), is primarily designed for which type of warfare?

Accepted Answer

The Arjun Main Battle Tank is a third-generation main battle tank designed for conventional ground warfare, particularly suited for the terrain and operational requirements of the Indian subcontinent. It is equipped with advanced fire control systems, composite armour, and a 120mm smoothbore gun.

Question 12

The Tejas Light Combat Aircraft (LCA), India's indigenous fighter jet developed by HAL, achieved Initial Operational Clearance (IOC) in which year, and what is its maximum speed capability?

Accepted Answer

The HAL Tejas Light Combat Aircraft achieved Initial Operational Clearance (IOC) in December 2013. It has a maximum speed of Mach 1.6 (approximately 1,190 km/h at sea level). The aircraft was formally inducted into the Indian Air Force in 2016 and represents a significant achievement in India's aerospace indigenization.

Question 13

The BrahMos missile, a supersonic cruise missile jointly developed by India and Russia, has a maximum speed of approximately Mach how many, and what is its primary operational range?

Accepted Answer

BrahMos is a supersonic cruise missile developed jointly by India's DRDO and Russia's NPO Mashinostroyeniya. It travels at approximately Mach 2.8-3.0 (supersonic speed), making it one of the fastest cruise missiles in the world. Its operational range is approximately 290-350 km depending on the variant.

Question 14

Which Indian defence system, developed jointly by DRDO and HAL, is a medium-range surface-to-air guided missile system primarily designed to neutralize aircraft, helicopters, and cruise missiles at altitudes up to 18 km?

Accepted Answer

The Akash missile system is India's indigenous medium-range surface-to-air missile (SAM) developed by DRDO. It has a range of 25-30 km and can engage targets at altitudes up to 18 km. It was first inducted into the Indian Air Force in 2004 and represents a significant milestone in India's defence indigenization.

Question 15

The INS Vikrant, India's first indigenous aircraft carrier commissioned in September 2022, has a displacement of approximately how many tonnes and is designed to operate which type of fighter aircraft?

Accepted Answer

INS Vikrant, India's first indigenously designed and built aircraft carrier, was commissioned on 2 September 2022. It has a displacement of approximately 40,000 tonnes and is designed to operate MiG-29K fighter aircraft, Kamov helicopters, and other naval aircraft. It represents a major achievement in India's naval indigenization.

Question 16

The Arjun Main Battle Tank (MBT), India's indigenous main battle tank, is equipped with a 120 mm smoothbore gun and has a combat weight of approximately how many tonnes? Which country's technology influenced its gun system?

Accepted Answer

The Arjun Main Battle Tank, developed by DRDO's Combat Vehicles Research and Development Establishment (CVRDE), has a combat weight of approximately 58-60 tonnes. It is equipped with a 120 mm smoothbore gun based on German technology (Rheinmetall). The tank was first inducted into the Indian Army in 1997.

Question 17

Which Indian defence system is designed to detect, track, and neutralize aerial threats at medium to long range, and was first successfully test-fired by India in 2019?

Accepted Answer

The Medium-Range Surface-to-Air Missile (MRSAM) system, also known as the Akash-NG or Akash New Generation, is an indigenously developed air defence system by India's Defence Research and Development Organisation (DRDO). It was successfully test-fired in March 2019 and is designed to engage aircraft, helicopters, cruise missiles, and unmanned aerial vehicles at ranges up to 60 km. The system uses phased array radar for detection and tracking, making it a critical component of India's air defence architecture.

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