General Science Questions and Answers | General Knowledge

1.

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

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

Answer: Option 'A'

Oenologist

2.

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

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

Answer: Option 'B'

Sodium azide

3.

Garampani sanctuary is located at

   A.) Diphu, Assam
   B.) Gangtok, Sikkim
   C.) Junagarh, Gujarat
   D.) Kohima, Nagaland

Answer: Option 'A'

Famous for Hot water springs and homeland for Hoolock Gibbons and Golden Langurs, The Garampani Wildlife Sanctuary is situated in Karbi Anglong of Diphu area. One of the oldest Sanctuary containing Hot water spring and waterfalls and surrounded by Nambour Sanctuary having 51 rare species of Orchid. It has a total area of 6 sq. Km.

4.

What invisible force holds you onto the earth, so that you don't simply fall off?

   A.) wind
   B.) magnetism
   C.) gravity
   D.) speed

Answer: Option 'C'

gravity

5.

The first synthetic fibre made by man was ____ ?

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

Answer: Option 'C'

​Nylon

6.

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'

Holograms

7.

In a laser (say neon laser) all the atoms emit the light waves of

   A.) Same frequency
   B.) Same phase
   C.) Same amplitude
   D.) All the above

Answer: Option 'D'

All the above

8.

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

9.

The radioactive element most commonly detected in humans is

   A.) potassium-40
   B.) cobalt-60
   C.) iodine-131
   D.) plutonium-238

Answer: Option 'A'

potassium-40

10.

A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is

   A.) O positive
   B.) A positive
   C.) B positive
   D.) Cannot be determined on the basis of the given data

Answer: Option 'A'

O positive

11.

The gases used in different types of welding would include

   A.) oxygen and hydrogen
   B.) oxygen and acetylene
   C.) oxygen, acetylene and argon
   D.) oxygen, hydrogen, acetylene and nitrogen

Answer: Option 'B'

oxygen and acetylene

12.

Which of the following has got more heat capacity?

   A.) Iron piece
   B.) Gold piece
   C.) Water
   D.) Benzene

Answer: Option 'C'

​Water

13.

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

14.

Seawater (i.e. saltwater) freezes at: 

   A.) at a slightly higher temperature than fresh water
   B.) at a slightly lower temperature than fresh water.
   C.) the same temperature as fresh water.
   D.) seawater does not freeze.

Answer: Option 'B'

at a slightly lower temperature than fresh water.

15.

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.)

16.

The intencity of Earthquakes is measured on

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

Answer: Option 'A'

Mercalli scale

17.

The Rain Shadow Effect is associated with

   A.) Convectional rainfall
   B.) Cyclonic rainfall
   C.) Frontal rainfall
   D.) Orographic rainfall

Answer: Option 'D'

Orographic precipitation or Rain produced when moist air is lifted as it moves over a mountain range. As the air rises and cools, orographic clouds form and serve as the source of the precipitation, most of which falls upwind of the mountain ridge.

Some also falls a short distance downwind of the ridge and is sometimes called spillover. On the lee side of the mountain range, rainfall is usually low, and the area is said to be in a Rain Shadow

18.

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

19.

The blue colour of the clear sky is due to 

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

Answer: Option 'C'

Dispersion of light

20.

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.


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