1. Which of the following is/are the advantages of the Low Earth Orbit(LEO)?
1. It provides true global coverage.
2. Efficient use of spectrum.
3. Provides medium propagation delay.
Select the correct code using the option given below
(a) 1 only
(b) 2 only
(c) 1 and 2 only
(d) 1, 2 and 3
2. Consider the following pairs
1. Satellite Application Centre- Ahmedabad
2. Vikram Sarabhai Space Centre-Sriharikota
3. Satish Dhavan Space Centre-Thiruvananthapuram
Which of the pairs given above is/are correct?
(a) 1 only
(b) 1 and 2 only
(c) 2 and 3 only
(d) 1, 2 and 3
3.Which of the following describes the Geostationary Earth Orbit (GEO) correctly?
(a) Altitude of 20,000 km above the sea level and the orbital period is 12 hours.
(b) Altitude of 35,863 km above the sea level and the orbital period is 24 hours.
(c) Altitude of 400 km above the sea level and the orbital period is 90 minutes.
(d) None of the above
4. When a language is declared as 'classical language', it
1. gets financial assistance from the Union Government.
2. gets listed in the 8th schedule of the Indian Constitution.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
5. Which of the following terms has/have been defined/specified in the Constitution?
1. Scheduled Caste
2. Scheduled Tribes
3. Anglo-Indian community
Select the correct answer using the code given below:
(a) 3 only
(b) 2 and 3 only
(c) 1 only
(d) 1, 2 and 3
Answers
1. (c)
Low Earth Orbits satellites are often in a polar orbit at the latitude of 50-1500 kilometres and the orbital period in the range of 95-120 minutes.
Advantages of LEO:
It can provide true global coverage and efficient use of spectrum.
Due to lower path loss, the use of smaller terminals become possible.
The propagation delay is very low(10 milliseconds)
2. (a)
The Space Applications Centre (SAC) is an institution of research in Ahmedabad under the aegis of the Indian Space Research Organisation (ISRO).
The Vikram Sarabhai Space Centre is a major space research centre of the Indian Space Research Organisation, focusing on rocket and space vehicles for India's satellite programme. It is located in Thiruvananthapuram.
Satish Dhawan Space Centre is a rocket launch centre operated by the Indian Space Research Organisation. It is located in Sriharikota in Andhra Pradesh.
3. (b)
At a height of 35863 km, it takes 24 hours for the satellite to orbit. This type of orbit is known as a geosynchronous orbit, i.e. it is synchronized with the Earth.
4. (a)
Statement 1 is correct. Once a language is declared classical, it gets financial assistance for setting up a centre of excellence for the study of that language and also opens up an avenue for two major awards for scholars of eminence. Besides, the University Grants Commission can be requested to create – to begin with at least in Central Universities – a certain number of professional chairs for classical languages for scholars of eminence in the language.
Statement 2 is incorrect. Once a language is declared classical, it does not get listed in the 8th schedule of the Constitution.
5. (a)
The Constitution has defined the persons who belong to the Anglo-Indian community.
The Constitution does not specify the castes or tribes which are to be called the SCs or the STs. It leaves to the President the power to specify as to what castes or tribes in each state and union territory are to be treated as the SCs and STs. Thus, the lists of the SCs or STs vary from state to state and union territory to union territory.
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