General Science Questions and Answers | General Knowledge


How many years it takes for Pluto to Orbit the Sun?

   A.) 76 yrs
   B.) 144 yrs
   C.) 198 yrs
   D.) 248 yrs

Answer: Option 'D'

It takes 248 yrs for Pluto to orbit the Sun.


As you go down into a well, your weight

   A.) increases slightly
   B.) remains exactly the same
   C.) decreases slightly
   D.) None of the above

Answer: Option 'C'

decreases slightly


Which one of the following types of laser is used in laser printers?

   A.) Semiconductor laser
   B.) Gas laser
   C.) Dye laser
   D.) Excimer laser

Answer: Option 'A'

Semiconductor laser


Radio Carbon Dating is use to estimate the age of _____ ?

   A.) Monuments
   B.) Soil
   C.) Fossils
   D.) Rocks

Answer: Option 'C'



Plants mainly receive their nutrients from

   A.) Pesticides
   B.) Soil
   C.) Sun light
   D.) Chlorophyll

Answer: Option 'B'

Plants receive their nutrients mainly from Soil.


Special 3-D photographs which have been taken with laser beams (and which make the objects look real) are called what?

   A.) Portraits
   B.) DVD
   C.) 3D special effects
   D.) Holograms

Answer: Option 'D'



What is laughing gas?

   A.) Nitrous Oxide
   B.) Carbon monoxide
   C.) Hydrogen peroxide
   D.) Carbon monoxide

Answer: Option 'A'

Nitrous Oxide


The blue colour of the clear sky is due to

   A.) Reflection of light
   B.) Diffraction of light
   C.) Dispersion of light
   D.) Refraction of light

Answer: Option 'C'

A clear cloudless day-time sky is blue because molecules in the air dissipate blue light from the sun more than they dissipate red light. When we look towards the sun at sunset, we see red and orange hues on the grounds because the blue light has been scattered out and away from the line of sight.


What does airbag, used for safety of car driver, contain?

   A.) Sodium bicarbonate
   B.) Sodium nitrite
   C.) Sodium azide
   D.) Sodium peroxide

Answer: Option 'C'

​Sodium azide


Ecology Deals With

   A.) Environment
   B.) Birds
   C.) Organisms and their Environment
   D.) Living beings

Answer: Option 'C'

Ecology is the branch of science which deals with the study of Ecosystem (relation between the Organisms and their Environment.)


When a gas is turned into a liquid, the process is called

   A.) deposition
   B.) sublimation
   C.) evaporation
   D.) condensation

Answer: Option 'D'



The man who is specialist in wine making is called as?

   A.) Oenologist
   B.) Grapologist
   C.) Wenologist
   D.) None of these

Answer: Option 'A'



The first synthetic fibre made by man was ____ ?

   A.) Polyester
   B.) Rayon
   C.) Nylon
   D.) Terycott

Answer: Option 'C'



Potassium Permanganate is used for purifying drinking water, because

   A.) it is a sterilising agent
   B.) it is a reducing agent
   C.) it dissolves the impurities of water
   D.) it is an oxidising agent

Answer: Option 'D'

it is an oxidising agent


Persons with which blood group are called universal donors?

   A.) AB
   B.) A
   C.) O
   D.) B

Answer: Option 'C'



The intencity of Earthquakes is measured on

   A.) Mercalli scale
   B.) Richter scale
   C.) Secant scale
   D.) Beaufort scale

Answer: Option 'A'

Mercalli scale


At present, scientists can determine the arrangement or relative positions of genes of DNA sequences on a chromosome. How does this knowledge benefit us?
1. It is possible to know the pedigree of livestock.
2. It is possible to understand the causes of all human diseases.
3. It is possible to develop disease-resistant animal breeds.
Which of the statements given above is/are correct?

   A.) 1 and 2 only
   B.) 2 only
   C.) 1 and 3 only
   D.) 1, 2 and 3

Answer: Option 'D'

1, 2 and 3


The filament of an electric bulb is made of

   A.) graphite
   B.) iron
   C.) tungsten
   D.) nichrome

Answer: Option 'C'



The Mudumalai National Park is located in which state  ?

   A.) Tamil Nadu
   B.) Chattisgarh
   C.) Haryana
   D.) Karnataka

Answer: Option 'A'

​Tamil Nadu


The amount of water vapour in the air is called...?

   A.) sunsafe factor
   B.) humidity
   C.) snow
   D.) water cycle

Answer: Option 'B'


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