626: Satellites used for telecommunication relay are kept in a geostationary orbit. A satellite is said to be in such an orbit when:
1. The orbit is geosynchronous.
2. The orbit is circular.
3. The orbit lies in the plane of the Earth's equator.
4. The orbit is at an altitude of 22,236 km.
Select the correct answer using the codes given below:
(a) 1, 2 and 3 only
(b) 1, 3 and 4 only
(c) 2 and 4 Only
(d) 1, 2, 3 and 4
627: In which of the following areas can GPS technology be used?
1. Mobile phone operations
2. Banking operations
3. Controlling the power grids
Select the correct answer using the code given below:
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
628: Swaraj Party was established to:
(a) Share power in the Government
(b) Ask the British to leave India
(c) To enter the Councils and wreck the Government from within
(d) Ask the people to fight against the British
629: Match: List I (Person)
A. Anil Agarwal
B. Gautam H Singhania
C. Sanjay Dalmia
D. Venugopal Dhoot
List II (Organization)
1. Gujarat Heavy Chemicals Ltd.
2. Raymond Ltd.
3. Vedanta Resources
4. Videocon Group
(a) 3 1 2 4
(b) 3 2 1 4
(c) 4 1 2 3
(d) 4 2 1 3
630: The area of an ellipse is twice that of a circle. The major diameter of the ellipse is twice that of the minor diameter. The radius of the circle is
(a) 50% of minor diameter of the ellipse
(b) 50% of major diameter of the ellipse
(c) minor diameter of the ellipse
(d) major diameter of the ellipse