Question 1

Which of the following is a key feature of the Tejas Light Combat Aircraft developed by India?

Accepted Answer

The HAL Tejas is India's indigenous light combat aircraft with several advanced features including a delta-canard configuration, composite materials for reduced weight, advanced avionics, and the ability to carry air-to-air and air-to-ground missiles. It is powered by a General Electric F404 turbofan engine.

Question 2

Which defence technology involves the use of unmanned aerial vehicles (UAVs) for surveillance and reconnaissance purposes?

Accepted Answer

Unmanned Aerial Vehicles (UAVs), commonly known as drones, are aircraft without onboard pilots. They are remotely controlled or autonomous and are extensively used by militaries worldwide for surveillance, reconnaissance, and combat operations. India operates UAVs like the Rustom series developed by DRDO.

Question 3

What is the primary purpose of India's Akash Missile System in defence operations?

Accepted Answer

The Akash Missile System is a medium-range, surface-to-air guided missile system developed by India's DRDO. It is designed to provide air defence against aircraft, helicopters, cruise missiles, and unmanned aerial vehicles (UAVs) at medium ranges.

Question 4

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

Accepted Answer

India's BMD system, also known as the Air Defence System (ADS), is designed to detect, track, and destroy aircraft, cruise missiles, and ballistic missiles. The system uses a two-tier architecture consisting of exoatmospheric (higher altitude) and endoatmospheric (lower altitude) interceptors.

Question 5

Which indigenous fighter aircraft has been developed by India's Defence Research and Development Organisation (DRDO) and Hindustan Aeronautics Limited (HAL)?

Accepted Answer

The Tejas is India's light combat aircraft (LCA) developed jointly by DRDO and HAL. It achieved Initial Operational Clearance (IOC) in 2013 and Final Operational Clearance (FOC) in 2019, making it India's first indigenously designed and developed fighter aircraft.

Question 6

Which defence research organization in India is primarily responsible for developing indigenous defence systems and weapons?

Accepted Answer

The Defence Research and Development Organisation (DRDO) is India's primary defence research agency, responsible for designing and developing defence systems, weapons, and military technologies. It operates under the Ministry of Defence.

Question 7

What is the maximum effective range of the BrahMos cruise missile, which is jointly developed by India and Russia?

Accepted Answer

The BrahMos cruise missile has a maximum range of approximately 290-300 km in its standard configuration. The supersonic cruise missile travels at Mach 2.8 (nearly three times the speed of sound) and is one of the fastest cruise missiles in the world.

Question 8

Which Indian defence research organization developed the Akash air defence system?

Accepted Answer

The Akash air defence system was developed by the Defence Research and Development Organisation (DRDO), specifically by its Bangalore-based laboratory. Akash is a medium-range surface-to-air guided missile system designed to protect against aircraft, helicopters, and cruise missiles.

Question 9

What is the primary role of the INS Vikramaditya in the Indian Navy?

Accepted Answer

INS Vikramaditya is India's first aircraft carrier (commissioned in 2013). It is a modified Kiev-class carrier acquired from Russia and serves as the flagship of the Indian Navy, carrying MiG-29K fighter aircraft and helicopters for power projection and naval operations.

Question 10

What is the operational range of India's Brahmos Cruise Missile?

Accepted Answer

The BrahMos is a supersonic cruise missile jointly developed by India and Russia. The standard version has an operational range of approximately 290 km, though extended-range variants have been developed with greater ranges.

Question 11

Which indigenous aircraft carrier of the Indian Navy was commissioned in 2022?

Accepted Answer

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

Question 12

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

Accepted Answer

India's BMD system, also known as the Air Defence System (ADS), is designed to detect, track, and destroy incoming aircraft, cruise missiles, and ballistic missiles at various altitudes.

Question 13

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, a German-origin turbocharged engine that produces approximately 1,400 horsepower. This engine enables the tank to achieve a maximum speed of 72 km/h on roads.

Question 14

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 15

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

Accepted Answer

The Agni-V is India's intercontinental ballistic missile (ICBM) with a range of approximately 5,000 km. It was successfully tested in 2012 and represents India's capability to strike targets across continental distances.

Question 16

Which Indian defence organization developed the Tejas light combat aircraft?

Accepted Answer

The Tejas light combat aircraft was developed by Hindustan Aeronautics Limited (HAL) under the Aeronautical Development Agency (ADA) of the Defence Research and Development Organisation (DRDO). The Tejas Mk-1A variant was inducted into the Indian Air Force in 2023.

Question 17

Which Indian defence system is designed to detect and track aircraft, missiles, and other aerial targets at long ranges using electromagnetic waves?

Accepted Answer

Radar (Radio Detection and Ranging) is a defence technology that uses electromagnetic waves to detect and track objects in the air. India operates several radar systems including the indigenously developed Aesa Radar and the Indra radar series for air defence.

Question 18

Which stealth technology principle allows military aircraft and ships to avoid detection by reducing their visibility to radar by minimizing the reflection of electromagnetic waves?

Accepted Answer

Stealth technology uses radar cross-section (RCS) reduction to minimize the reflection of electromagnetic waves back to radar receivers. This is achieved through special shapes, materials (like radar-absorbing materials), and coatings that scatter or absorb radar signals rather than reflecting them directly back.

Question 19

Which Indian defence research organization developed the Tejas Light Combat Aircraft?

Accepted Answer

The Tejas Light Combat Aircraft (LCA) was developed by Hindustan Aeronautics Limited (HAL) under the direction and support of the Defence Research and Development Organisation (DRDO). The first Tejas aircraft was inducted into the Indian Air Force in 2016.

Question 20

The BrahMos missile, a joint venture between India and which country, is one of the fastest cruise missiles in the world with a speed of approximately Mach 2.8 to 3?

Accepted Answer

BrahMos is a supersonic cruise missile developed jointly by India's DRDO (Defence Research and Development Organisation) and Russia's NPO Mashinostroyeniya. It is named after the Brahmaputra river (India) and Moskva river (Russia). The missile can travel at speeds exceeding Mach 2.8.

LIC ADO Defence Technology

Defence Technology— Rules & Concept

Key Points to Remember

Exam-Specific Tips

Defence Technology — Practice Questions

60-Second Revision — Defence Technology