science & tech MCQ section 5 MCQ Questions & Answers Detailed Explanation

Answer: (c)

Nuclear weapons-capable, surface-to-surface Prithvi-II missile was successfully flight-tested for its full range of 350 km by the Strategic Forces Command (SFC) personnel on June 9, 2011.

The nine-metre tall Prithvi-II, the first indigenously built surface-to-surface strategic missile, was fired from a mobile launcher from Launch Complex-III at the Integrated Test Range at Chandipur in Odisha.

Note: Prithvi is a tactical surface-to-surface short-range ballistic missile (SRBM) developed by DRDO of India under the Integrated Guided Missile Development Program. The Prithvi missile project encompassed developing three variants for use by the Indian Army, Indian Air Force and the Indian Navy Prithvi I class is a surface-to-surface missile having a maximum warhead mounting capability of 1,000 kg, with a range of 150 km (93 mi).

It has an accuracy of 10–50 m (33–164 ft) and can be launched from transporter erector launchers. This class of Prithvi missiles was inducted into the Indian Army in 1994.

As Per (DRDO) Chief Avinash Chander the tactical 150 km-range Prithvi missile will be replaced with the Prahaar missile. Prithvi II class is also a single-stage liquid-fueled missile having a maximum warhead mounting capability of 500 kg, but with an extended range of 250 km (160 mi).

It was developed with the Indian Air Force being the primary user. According to news sources, the range is now increased to 350 km (220 mi) and the payload capacity now ranges between 500 – 1000 kg. Prithvi III class is a two-stage surface-to-surface missile. The first stage is solid-fueled with a 16 metric ton-force (157 KN) thrust motor.

The second stage is liquid-fueled. The missile can carry a 1,000 kg warhead to a distance of 350 km (220 mi) and a 500 kg warhead to a distance of 600 km (370 mi) and a 250 kg warhead up to a distance of 750 km (470 mi). Prithvi III or Dhanush was again tested on November 26, 2015, from INS Subhadra in the Bay of Bengal.

Answer: (d)

The Lakshya is an Indian remotely piloted high speed target drone system developed by the ADE of DRDO. It is a Pilotless Target Aircraft (PTA). So far 23 PTA have been inducted in the defence system. It has a range of 150 km.

Answer: (d)

RAPS-5 continuously operated for 678 days and surpassed the record of unit 2 of the Tarapur atomic power station.

Answer: (d)

The Physical Research Laboratory (PRL) is a National Research Institute for space and allied sciences, supported mainly by the Department of Space, Government of India.

This research laboratory has ongoing research programmes in Astronomy and Astrophysics, Atmospheric Sciences and Aeronomy, Earth Sciences, Solar System studies and Theoretical Physics. It manages the Udaipur Solar Observatory and is located in Ahmedabad.

Answer: (c)

With this new turbine, the installed wind energy capacity at the Kutch region of Gujarat has gone up to 1100 MW.

Answer: (c)

Scientists at the Jawaharlal Nehru University’s School of Biotechnology claimed in the third week of January 2013 the discovery of SCO2 gene having potential qualities of restricting tumours.