science & tech MCQ section 4 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 1

Identify the correct statement(s):

  1. IAEA governing body has decided to established a nuclear fuel bank.
  2. India will be able to draw fuel from the nuclear fuel bank.

a) 1 only

b) 1 and 2 both

c) 2 only

d) None

Answer: (a)

U.N.’s International Atomic Energy Agency (IAEA) approved the U.S.-backed scheme to establish a reserve of low-enriched uranium (LEU), the IAEA has yet to conclude negotiations with Kazakhstan, the country that will host the fuel bank.

Question : 2 [SSC SAS 2010]

MIRV stands for

a) Multipurpose Integrally-targeted Revolutionary Vehicle

b) Multi-dimensional Independent Reentry Vehicle

c) Multiple Independently-targetable Re-entry Vehicle

d) Multi-directional Independently Reoriented Vehicle

Answer: (c)

A multiple independently targetable re-entry vehicle (MIRV) warhead is a collection of separate warheads. By contrast, a unitary warhead is a single warhead on a single missile. It provides greater target damage for a given missile payload.

With a MIRV warhead, the post-boost (or bus) stage can dispense the warheads against multiple targets across a broad area. It reduces the effectiveness of an anti-ballistic missile system that relies on intercepting individual warheads.

While a MIRV attacking missile can have multiple warheads (3–12 on United States missiles and 3-10 on Russian), interceptors may have only one warhead per missile. Thus, in both a military and an economic sense, MIRVs render ABM systems less effective.

Question : 3 [SSC SO 1997]

Which among the following was the first satellite launched by Indian Space Research Organisation ?

a) Aryabhatta

b) INSAT I-A

c) Rohini

d) Bhaskar

Answer: (a)

Aryabhatta, the first Indian space satellite, was launched for India on April 19, 1975. Later, BhaskaraI, an Earth observation satellite, was launched for India on June 7, 1979. India launched its own satellite for the first time on July 18, 1980.

It was the Rohini1 satellite carried aloft on a Satellite Launch Vehicle (SLV) rocket from the Sriharikota Island launch site.

Note: in its thirty-ninth flight (PSLV-C37), ISRO’s Polar Satellite Launch Vehicle successfully launched the 714 kg Cartosat-2 Series Satellite along with 103 co-passenger satellites on February 15, 2017, from Satish Dhawan Space Centre SHAR, Sriharikota.

The total weight of all the 104 satellites carried onboard PSLV-C37 was 1378 kg. The previous record was held by Russia, which sent 37 satellites into orbit in 2014.

Question : 4 [SSC Tax Asst 2007]

The Department of Space proposed setting up of Indian Institute of Space Technology on the line of the seven IITs. It will have its independent campus at

a) Thumba

b) Sriharikota

c) Thiruvananthapuram

d) Chennai

Answer: (c)

The Indian Institute of Space Science and Technology is India’s national institute for the study and development of space science, located at Valiamala, Nedumangad, Thiruvananthapuram, Kerala. It was inaugurated on 14 September 2007 by G. Madhavan Nair, the then Chairman ISRO.

IIST is sponsored by the Indian Space Research Organisation (ISRO) under the Department of Space, Government of India. IIST offers undergraduate B. Tech., master’s M. Tech and PhD programs in space science and technology, and also serves as a research centre.

Question : 5

Which of the following pairs are correctly matched? Exercise Conducted by

  1. HADR Indian Navy
  2. Hand in Hand Indian Army
  3. Iron Fist Indian Air Force
Codes:

a) 1 and 3 only

b) 2 and 3 only

c) 1 and 2 only

d) All of these

Answer: (d)

Indian Navy recently undertook Humanitarian Assistance and Disaster Relief (HADR) exercise involving more than 20 ships from the Western and Eastern Fleet and various aircraft of the Indian Navy.

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