Why not test your brain and try one of our quizzes below. Once completed, click the Get Results button to see how you went.
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Tag: CSS general Science MCQs
Why not test your brain and try one of our quizzes below. Once completed, click the Get Results button to see how you went.
[mtouchquiz 2]
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General Science and Ability MCQs
(Exercise-1)
The nearest star to the planet earth is:
(a) Venus
(b) Sun
(c) Moon
(d) Alpha
Answer: b
Orion is a name of a ________.
(a) Star planet
(b) Planet
(c) Galaxy
(d) Constellation
Answer: d
The largest planet of the solar system:
(a) Mars
(b) Sun
(c) Jupiter
(d) Saturn
Answer: c
101) Which type of star is maintained by the pressure of an electron gas?
(a) Main Sequence Star
(b) White Dwarf
(c) Neutron Star
(d) Black Hole
Answer: (b)
White dwarfs are stars supported by pressure of degenerate electron gas. i.e. in their interiors thermal energy kT is much smaller then Fermi energy Ep. We shall derive the equations of structure of white dwarfs, sometimes called degenerate dwarfs, in the limiting case when their thermal pressure may be neglected, but the degenerate electron gas may be either non-relativistic. somewhat relativistic. or ultra-relativistic.
102) Which of the following first hypothesized that the Earth orbited the sun?
(a) Alexander the Great
(b) Copernicus
(c) Socrates
(d) Tycho Brahe
Answer: (b)
Nicolaus Copernicus was a Renaissance mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe.
51) Planets are always small compared with stars because otherwise ______.
( a) the rotation of the planets would cause them to disintegrate
(b) the great mass of the planets would cause them to be pulled into their parent star
(c) the great mass of the planets would prevent them from being held in orbit and they would escape
(d) the planets would be stars themselves
Answer: (d)
52) The least likely reason why planetary systems have not been directly observed around stars other than the sun is that __
(a) Planets are small
(b) Planets shine by reflected light
(c) Planetary systems are rare
(d) Other stars are far away
Answer: (c)
53) Which of the following is the correct ordering of the inner planets according to their proximity to the sun? (CSS 2012)
(a) Jupiter, Saturn , Uranus , Neptune
(b) Phobos, Deimes , Europe , Tias
(c) Mercury, Venus, Earth, Mars
(d) None of these
Answer: (c)