1. The planet of the solar system which has maximum number of Moon is:
a. Jupiter
b. Venus
c. Saturn
d. Uranus
e. None of these
2. Sun is a:
a. Planet
b. Satellite
c. Comet
d. None of these
3. The age of the solar system is:
a. 4.6 billion years
b. 5.5 billion years
c. 6.5 billion years
d. 7.5 billion years
e. None of these
4. A unit length equal to the average distance between the Earth and Sun is called:
a. Light year
b. Astronomical unit
c. Parsec
d. Parallax
e. None of these
5. An eclipse of the Sun occurs when:
a. The Moon is between the Sun and the Earth
b. The Sun is between the Earth and the Moon
c. The Earth is between the Sun and the Moon
d. The Earth casts its shadow on the Moon
e. None of these
6. The ozone layer protects the Earth from the rays sent down by the Sun:
a. Ultraviolet rays
b. Infrared rays
c. Gamma Rays
d. Radioactive Rays
e. None of these
7. The unit of home electricity energy consumption is:
a. Walt hour
b. Kilowatt hour
c. Joule hour
d. None of these
8. The magnet always points in the
a. Gravitational Field
b. A lot of metal deposits on North and South Poles
c. Due to attraction of North Pole and repulsion of Western Pole
d. Earth is huge magnet
e. None of these.
9. The ozone layer is present about 30 miles (50 Km) in atmosphere above the Earth, The stratumĀ (layer) of atmosphere in which ozone layer lies is called as:
a. Exosphere
b. Mesosphere
c. Stratosphere
d. Ionosphere
e. Troposphere
11. Which rocks are formed by the alternation of pre-existing rocks by great heat or pressure?
a. Igneous rocks
b. Sedimentary Rock
c. Metamorphic Rocks
d. Acid rocks
e. Basic rocks
12. The most abundant natural Iron Oxides are:
a. Magnetite and Pyrite
b. Magnetite and Bauxite
c. Hematite and Pyrite
d. Hematite and Magnetite
e. Hematite and Bauxite
13. The two most abundant elements in sea water are:
a. Sodium and Potassium
b. Sodium and Calcium
c. Sodium and Chlorine
d. Chlorine and Iodine
e. Magnesium and Sulphur
14. An electric current can produce:
a. Chemical effect
b. Magnetite effect
c. Heating effect
d. All of three
15. When sound is reflected from floor ceiling or a wall, it mixes with the original sound and changes its
a. Complexion , it is called as:
b. Sound
c. Echo
d. Reverberation
e. Noise
f. None of these
16. The speed of sound in dry air at is about:
a. 1 30 meters per second
b. 230 meters per second
c. 330 meter per second
d. 430 meters per second
e. None of these
17. The speed of light in vacuum:
a. 300 Million Meters per second
b. 300 Million Meters per hour
c. 300 Million kilometers per second
d. 300 Million kilometers per hour
e. None of These
18. The time, light takes from the Sun to reach earth is:
a.8 minutes
b. 25 minutes
c. 45 minutes
d. 48 minutes
e. None of these
19. Light from the sun travels a distance before it teaches the earth:
a. 50 million Km
b. 100 million Km
c. 150 million Km
d. 200 million
e. None of these
20. The most suitable thermometer for measuring the boiling point of water is:
a. Mercury thermometer
b. Alcohol thermometer
c. Bimetallic thermometer
d. Liquid crystal thermometer
e. None of-these
21. The density of water is greatest at:
a. -300 C
b. 00 C
c. 40 C
d. 100 0 C
e. None of these
22. Which one of the following statements is true?
a. Gases do not conduct heat
b. The best conductors are non-metals
c. Conduction currents occurs only in liquids
d. A vacuum cannot conduct heat
e. None of the statements is true.
23. Ice can be changed to water by:
a. Adding more water in molecules
b. Changing the motion of the water molecules
c. Rearranging the atoms in water molecules
d. Destroying the atoms in water molecules
e. None of these
24. The building block of elements is called:
a. Atoms
b. Molecules
c. Compounds
d. Isotopes
e. None of these
25. Boiling of an egg is a change which
a. Physical
b. Chemical
c. Physiological
d. Morphological
e. None of these
26. The temperature or liquid Nitrogen
a. -320 C
b. -800 C
c. -1000C
d. -1960 C
e. None of these
27. If an alkali is slowly mixed to an acidic solution, pH of the acidic solution will:
a.Increase
b. Decrease
c. Increase to 7 and then decrease
d. Decrease to 7 and then increase
e. Will remain same.
28. Telephone was invented by 1876 in America by:
a. Marconi
b. Galileo
c. John Beard
d. Edison
e. Graham Bell
29. Information can be sent over tong distance in the of:
a. Electrical signals through wires
b. Light signals through optical fiber
c. Radio waves through air
d. Any combination of these three
e. None of these
30. information can be stored in:
a. Audio and video cassettes
b. Floppy and compact discs
c. Hard disks
d. Laser and optical disks
e. All of these Four
31. Computer can:
a. Add and subtract information only
b. Add, subtract and sort the information only
c. Add, subtract, sort and classify the information
d. Add and subtract but cannot sort information
32. Polyamides are synthetic polymers commonly known as:
a. Synthetic rubber
b. Nylon
c. Cellulose
d. Protein
e. None of These
33. In human eye, the light sensitive made of specialized nerve cells, the rods and cones is called:
a. The cornea
b. The pupil
c. The iris
d. The sclera
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