Tag: space communications

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Questions Related to space communications

Multiple choice social studies discovery of universe famous space scientists and astronauts space exploration space communications

How much speed is needed to escape the Earth's gravity?

  1. 9.2 Km/s

  2. 11.2 Km/s

  3. 12.4 Km/s

  4. 14.4 Km/s
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In physics, escape velocity is the minimum speed needed for a free, non-propelled object to escape from the gravitational influence of a massive body. The escape velocity from Earth is about 11.186 km/s (6.951 mi/s; 40,270 km/h; 36,700 ft/s; 25,020 mph; 21,744 km) at the surface.

Multiple choice social studies discovery of universe famous space scientists and astronauts space exploration space communications

Which one of the following pairs of public sector joint companies runs telephone network in India?

  1. Airtel-Hutch

  2. Bharti Telecom-C-DEC

  3. MTNL-BSNL

  4. Reliance -Tata
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mahanagar Telephone Nigam Limited is a state-owned telecommunications service provider and a wholly-owned subsidiary of BSNL headquartered in New Delhi, India. MTNL Provides services in the metro cities of Mumbai and New Delhi in India and in the island nation of Mauritius in Africa.

The company had a monopoly in Mumbai and New Delhi until 1992 when the telecom sector was opened to other service providers. "Transparency makes us different" is the motto of the company. The Government of India currently holds 57% stock in the company with the rest being held by public and institutional investors.

Multiple choice social studies discovery of universe famous space scientists and astronauts space exploration space communications

In recent years, India is earning large foreign exchange through the export of which of the following?

  1. Ores and Minerals

  2. Information Technology

  3. Agricultural Products

  4. Electrical goods
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In recent years, India is earning large foreign exchange through the export of information technology. The information technology in India is comprised of two-component, viz., Business Process Outsourcing (BPO) and IT services. The sector has increased its contribution to India's GDP from 1.2% in 1988 to 7.7% in 2017.

Multiple choice social studies discovery of universe famous space scientists and astronauts space exploration space communications

The latest space mission launched by India is 

  1. MOM ( mars orbital mission )

  2. SARAL

  3. HAMSAT

  4. OCEANSAT 2
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A.  MOM (mars orbiter mission)

The Mars Orbiter Mission (MOM), is a space probe orbiting Mars since 24 September 2014. It was launched on 5 November 2013 by the Indian Space Research Organisation (ISRO). It is India's first interplanetary mission and ISRO has become the fourth space agency to reach Mars, after the Soviet space program, NASA, and the European Space Agency. It is the first Asian nation to reach Mars orbit, and the first nation in the world to do so in its first attempt.

Multiple choice social studies discovery of universe famous space scientists and astronauts space exploration space communications

Apogee is 

  1. The point farthest approach to earth

  2. The point farthest approach to mass

  3. The point farthest approach to moon

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A.  The point farthest approach to earth

The point in the orbit of an object (as a satellite) orbiting the earth that is at the greatest distance from the center of the earth also the point farthest from a planet or a satellite (as the moon) reached by an object orbiting it. 

Multiple choice social studies discovery of universe famous space scientists and astronauts space exploration space communications

India launched its own _____ satellite recently.

  1. navigation

  2. space

  3. rocket

  4. none of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

India launched its own navigation satellite system called NAVIC (Navigation with Indian Constellation) or IRNSS. This provides independent positioning capability similar to GPS. Space satellites and rockets are categories of satellites, not specific types that India 'recently' launched. NAVIC represents India's achievement in autonomous navigation technology.