Quiz 123 : General Science

1.Which of the following terms is defined as a cataclysmic nuclear explosion caused by the accretion of hydrogen onto the surface of a white dwarf star?
(A)Nova
(B)Nebula
(C)Neutron star

2.Which among the following is true about " New Moon" ?
(A)rises at dawn and sets at sunset
(B)rises at sunset and sets at dawn
(C)rises at midnight and sets at noon

3.A change in the direction of the axis of Earth is called as ______?
(A)Rotation
(B)Precession
(C)Circumference

4.Precession is caused by the gravitation pull of gravitational forces of ________?
(A)Sun Only
(B)Moon Only
(C)Sun & Moon both

5.In a black hole________?
(A)All wavelengths of light are absorbed
(B)All wavelengths of light are absorbed except green and blue
(C)All wavelengths of light are absorbed except blue and red

6.Which among the following is a NOT true statement regarding White Dwarf?
(A)They are final evolutionary stage of stars with not very high density
(B)They reflect light and are not very dense
(C)The light emitted by White dwarfs is due to their heat and they are very dense

7.What is approximate diameter of Milky Way?
(A)1000 light years
(B)10000 light years
(C)100000 light years

8.The scientists have discovered that Milky Way is having two components, the disc and spherical. What may be the central object of Milky way?
(A)A Black Hole
(B)A Neuron Star
(C)Vacuum

9.Disturbances in the geomagnetic field caused by gusts in the solar wind that blows by Earth are called as ?
(A)Geomagnetic Storms
(B)Solar Radiation Storms
(C)Radio Blackouts

10.Out of Earth, Saturn , Jupiter and Mars which takes maximum time to revolve around Sun?
(A)Jupiter
(B)Saturn
(C)Mars

11." Planetoids" are located between ?
(A)Mars and Jupiter
(B)Saturn & Jupiter
(C)Mercury and Venus

12.Neutron stars are characterized by ______?
(A)very high density
(B)very low density
(C)normal density

13.The only planet that shows phases is _________?
(A)Earth
(B)Venus
(C)Jupiter

14.Which among the following is Brightest star?
(A)Sirius
(B)Alpha centauri
(C)Proxima Centauri

15.The following two gases contribute to begin the formation of stars..
(A)Hydrogen & Nitrogen
(B)Nitrogen and Helium
(C)Helium & Hydrogen

16.During the formation of star , the cloud of gases begins to contract under its own gravity. This contracting mass is called as____?
(A)Supernova
(B)Protostar
(C)Orion

17.A vast collection of stars held together by mutual gravitation is called__?
(A)a galaxy
(B)constellation
(C)nebula

18.A term that describes the predicted climatic effects of nuclear war is ____?
(A)Nuclear holocaust
(B)Nuclear Catastrophe
(C)Nuclear Winter

19.Apart from Saturn which of the following possess planetary possess ring systems of their own?
(A)Jupiter only
(B)Jupiter , Uranus & Neptune
(C)Jupiter & Uranus

20.Aurorae are produced by the collision of charged particles from Earth's magnetosphere which arise from ______?
(A)Solar winds
(B)Ozone layer
(C)Radio waves