Defence Technology (Physics) Part-I

Total Questions: 50

11. Match the following: [M.P.P.C.S. (Pre) 1994]

List-IList-II
A. Akash1. Kanshiram
B. Bahujan Samaj Party2. A surface-to-air missile
C. Prithvi3. A surface-to-surface missile
D. Mirage 20004. Fighter plane

Code:

ABCD
(a)1234
(b)3421
(c)1342
(d)2134
Correct Answer: (d)
Solution:

Akash is a medium range surface-to-air missile. Kashiram was the founder of Bahujan Samaj Party. Prithvi is a surface to surface missile. Mirage 2000 is a French multirole single engine fourth-generation jet fighter.

12. Which of the following statements are true about 'Nirbhay' Missile, which was successfully flight-tested on 7ᵗʰ November, 2017? [U.P.P.S.C. (GIC) 2017]

1. It can deliver nuclear warheads to a strike range of 1000 km.

2. It is a land-attack cruise missile.

3. It is an effective counter to Pakistan's 'Babur' missile.

4. It is a supersonic missile.

Select the correct answer from the codes given below:

Correct Answer: (b) Only 1, 2 and 3
Solution:

On 7ᵗʰ November, 2017 Defence Research and Development Organisation (DRDO) successfully test-fired its first indigenously designed and developed long-range subsonic cruise missile 'Nirbhay' from Integrated Test Range (ITR) at Chandipur (Odisha).

It is a land-attack cruise missile which can deliver nuclear or conventional warheads of up to 300 kg to a strike range of 1000 km. Defence experts considers Nirbhay missile equivalent to Tomahawk of U.S.A.

It is an effective counter to Pakistan's 'Babur' missile which is a medium-range (450-750 km) subsonic cruise missile.

13. Which one of the following statements is not correct about Astra missile ? [U.P.P.C.S. (Mains) 2010]

Correct Answer: (d) It has the capacity to destroy the enemy plane up to a distance of 90 km.
Solution:

Astra is an active radar homing Beyond-Visual-Range Air-to-Air Missile (BVRAAM) developed by the DRDO. It has the capacity to destroy the enemy plane up to a distance of 80 km. Ballistic flight test of the missile was carried out from the integrated test range at Chandipur on 20 May, 2011.

14. India's first Beyond-Visual Range (BVR) air-to-air missile indigenously designed & developed by Defence Research & Development Organization (DRDO) is: [R.A.S./R.T.S. (Pre) 2018]

Correct Answer: (c) Astra
Solution:

Astra is an all-weather beyond visual range air-to-air missile (BVRAAM) developed by the Defence Research and Development Organization. It is the first air-to-air missile developed by India.

Astra is designed to be capable of engaging targets of varying range and altitude allowing for engagement of both short-range targets at a distance of 20 km and long-range targets up to a distance of 80 km.

15. Missile 'Astra' is a- [U.P.P.C.S (Pre) 2011]

Correct Answer: (c) Air to air missile
Solution:

Astra is an all-weather beyond visual range air-to-air missile (BVRAAM) developed by the Defence Research and Development Organization. It is the first air-to-air missile developed by India.

Astra is designed to be capable of engaging targets of varying range and altitude allowing for engagement of both short-range targets at a distance of 20 km and long-range targets up to a distance of 80 km.

16. On 23ʳᵈ August 2023, LCA (Light Combat Aircraft) Tejas successfully test fired ASTRA missile, this missile is: [Rajasthan P.C.S. (Pre) 2023]

Correct Answer: (b) Beyond Visual Range Air to Air Missile
Solution:

Light Combat Aircraft (LCA) Tejas, Limited Series Production-7 (LSP-7) successfully test fired the ASTRA indigenous beyond visual range air-to-air missile off the coast of Goa on 23 August, 2023.

The missile release was successfully carried out from the aircraft at an altitude of about 20,000 feet and all the objectives of the test were achieved with a perfect launch.

17. The name of successfully tested air-to-air missile in Balasore, in May 2003 is: [U.P. Lower Sub. (Pre) 2004]

Correct Answer: (a) Astra
Solution:

Astra is an active radar homing beyond-visual-range air-to-air missile developed by DRDO. The missile was first successfully tested on 9 May, 2003.

18. Which missile programme has been shelved by the DRDO? [Chhattisgarh P.C.S. (Pre) 2003]

Correct Answer: (b) Trishul
Solution:

Trishul, a supersonic missile programme, has been shelved by DRDO on 27 February, 2008 due to some technical flaws.

19. The short-range missile - TRISHUL, test fired from Chandipur is a: [Uttarakhand P.C.S. (Mains) 2002]

Correct Answer: (b) Supersonic missile
Solution:

Trishul, a supersonic missile programme, has been shelved by DRDO on 27 February, 2008 due to some technical flaws.

20. India's short-range missile is- [U.P.P.C.S. (Pre) 1996]

Correct Answer: (c) Nag
Solution:

Nag missile has the lowest-range in the given options. It's land based version has a range of maximum 4 km. Prithvi-l missile has a minimum range of 150 km. Among the different versions of the Agni missiles, Agni-I has a minimum range of 700 km. Arjun is the third generation main battle tank developed by the DRDO.