Question 1

What does the acronym 'DRDO' stand for in the context of Indian defence technology?

Accepted Answer

DRDO stands for Defence Research and Development Organisation. It is India's premier defence research agency responsible for developing military technologies and weapons systems. DSIR is a different organization under the Department of Science and Industry.

Question 2

Which Indian defence satellite system is used for navigation and positioning?

Accepted Answer

NavIC (Navigation with Indian Constellation) is India's indigenous satellite navigation system. GPS is American. GLONASS is Russian. Galileo is European. NavIC was developed by ISRO and became operational in 2018.

Question 3

Which defence research organization in India is responsible for the development of the Akash missile system?

Accepted Answer

The Akash missile system was developed by the Defence Research and Development Organisation (DRDO), specifically by its Pune-based facility. It is a surface-to-air guided missile system.

Question 4

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

Accepted Answer

BrahMos is a supersonic cruise missile, not hypersonic. Hypersonic weapons travel at speeds exceeding Mach 5. India's hypersonic cruise missile project is called BrahMos-II (under development) or the hypersonic technology demonstrator vehicle (HSTDV). However, the most commonly referenced Indian hypersonic system in defence circles is the HSTDV tested in 2019.

Question 5

Which missile system developed by India is known as the 'Pride of the Indian Army' and is a surface-to-surface ballistic missile?

Accepted Answer

Agni is India's family of surface-to-surface ballistic missiles developed by DRDO (Defence Research and Development Organisation). Agni missiles are a key part of India's nuclear deterrence and are often called the pride of the Indian Army's strategic missile arsenal.

Question 6

What is the primary purpose of stealth technology in military aircraft?

Accepted Answer

Stealth technology is designed to reduce radar cross-section (RCS) and make aircraft difficult to detect by enemy radar systems. It does not make aircraft invisible to the naked eye, faster than sound, or immune to missiles.

Question 7

Which defence technology is used to detect and track aircraft and ships at long distances?

Accepted Answer

RADAR (Radio Detection and Ranging) is the primary technology for detecting and tracking distant objects using radio waves. SONAR is for underwater detection. LIDAR uses laser light. GPS is for positioning, not detection.

Question 8

What is the primary purpose of the Ballistic Missile Defence (BMD) system being 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 layered defence system with two tiers: exoatmospheric (outside Earth's atmosphere) and endoatmospheric (within atmosphere) interception.

Question 9

Which Indian naval ship is the first indigenous aircraft carrier commissioned by the Indian Navy?

Accepted Answer

INS Vikrant is India's first indigenous aircraft carrier. It was commissioned on 2 September 2022. It is a 40,000-tonne carrier designed and built entirely in India by Cochin Shipyard Limited.

Question 10

What is the range of the Agni-III ballistic missile developed by India?

Accepted Answer

Agni-III is an intermediate-range ballistic missile with a range of approximately 3,500 km. It was first successfully tested in 2007 and is capable of carrying nuclear warheads.

Question 11

Which Indian defence missile system is designed to counter low-flying aircraft and helicopters, and is primarily used by the Indian Air Force?

Accepted Answer

The Akash missile system is India's medium-range surface-to-air guided missile developed by DRDO. It can engage targets at altitudes up to 18 km and is a key component of India's air defence network.

Question 12

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 2 September 2022. It is a 40,000-tonne carrier equipped with advanced combat systems and can operate MiG-29K fighter jets and helicopters.

Question 13

What is the primary operational range of the Agni-V ballistic missile, India's long-range strategic weapon?

Accepted Answer

The Agni-V is India's intercontinental ballistic missile (ICBM) with a range of 5,000–5,500 km. It was first successfully tested in 2012 and represents India's strategic deterrence capability, capable of reaching targets across Asia and beyond.

Question 14

The Arjun Main Battle Tank, developed by DRDO, is primarily used by which branch of the Indian Armed Forces?

Accepted Answer

The Arjun Main Battle Tank (MBT) is a third-generation main battle tank designed and manufactured by DRDO for the Indian Army. It entered service in 1997 and is equipped with advanced fire control systems and armour protection.

Question 15

Which indigenous Indian missile system is designed to counter aerial threats and is primarily used by the Indian Air Force for air defence?

Accepted Answer

The Akash missile system is India's medium-range surface-to-air guided missile developed by DRDO. It has a range of 25–30 km and is the primary air defence system of the Indian Air Force, capable of engaging aircraft, helicopters, and cruise missiles.

Question 16

Which defence research organization in India is primarily responsible for the development of the Brahmos cruise missile in collaboration with Russia?

Accepted Answer

The Brahmos missile is a joint venture between India's Defence Research and Development Organisation (DRDO) and Russia's NPO Mashinostroyeniya. DRDO is the lead Indian agency responsible for its development, testing, and induction into the Indian Armed Forces.

Question 17

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

Accepted Answer

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

Question 18

Which of the following is the primary propellant used in India's Agni series of ballistic missiles?

Accepted Answer

India's Agni series of ballistic missiles uses solid-fuel propulsion systems. The Agni missiles are powered by solid-propellant rocket motors, which provide greater reliability and faster deployment compared to liquid-fuel systems. This is a well-established and documented characteristic of India's strategic missile program.

Question 19

Which Indian defence missile system is designed to neutralize aerial threats at medium to long range and is equipped with phased array radar technology?

Accepted Answer

The Akash missile system is India's indigenous medium-range surface-to-air missile (SAM) developed by DRDO. It features phased array radar for target detection and can engage multiple targets simultaneously. It has been operationalized by the Indian Air Force and Army since 2004.

Question 20

The Arjun Main Battle Tank, India's indigenous MBT, is equipped with which main gun calibre?

Accepted Answer

The Arjun Main Battle Tank, developed by the Defence Research and Development Organisation (DRDO), is equipped with a 120 mm smoothbore gun. This gun is capable of firing kinetic energy penetrators and shaped-charge ammunition. The Arjun tank has been in service with the Indian Army since 1997 and represents a significant achievement in indigenous defence manufacturing.

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