CSS Past PapersBREveryday Science 2009BR Test - 3

CSS Past PapersBREveryday Science 2009BR Test - 3

1. Which of the following is most elastic?

a) Rubber
b) Glass
c) Steel
d) None of these
e) Sponge

2. Orbital period of the planet Mercury around the sun is?

a) None of these
b) 98 days
c) 88 days
d) 365 days
e) 2 years

3. The most splendid and the most magnificient constellation on the sky is?

a) Orion
b) Canis Major
c) None of these
d) Columbia
e) Taurus

4. “Black holes” refer to?

a) Collapsing objects of high density
b) Collapsing of low density
c) Hole occurring in heavenly bodies
d) Bright spots on the sun
e) None of these

5. Eugenics is the study of?

a) Genetic of plants
b) People of European region
c) Different races of mankind
d) None of these
e) Altering human beings by changing their genetic components

6. The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called?

a) Perihelion
b) None of these
c) Apogee
d) Aphelion
e) Perigee

7. Diamond is a very expensive ornamenIt is composed of a single element?

a) Carbon
b) None of these
c) Gold
d) Silver
e) Platinum

8. Which of the following layers make radio transmission possible?

a) Troposphere
b) Mesosphere
c) Ionosphere
d) Stratosphere
e) None of these

9. Which of the following explains the reason why there is no total eclipse of the sun?

a) Size of the earth in relation to that of moon
b) Area of the sun covered by the moon
c) None of these
d) Direction of rotation of earth around sun
e) Orbit of moon around earth

10. Television signals are converted into light signals by?

a) Decoder
b) Photo diode (Photo and Laser Diode)
c) Optical fiber
d) None of these

e) Transistor

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