QUESTIONS ON GENERAL SCIENCE AND TECHNOLOGY

1) Which of the following was the first digital wallet company in India ?
1) Paytm
2) Mobikwik
3) Freecharge
4) PayZip

Ans: Mobikwik 

2) 'OneerTM' is a/ an .........
1) Innovative technology for "Drinking Water Disinfection System"
2) Antiviral herbal medicine
3) Bio-fertilizer
4) Deadly bacteria

Ans: Innovative technology for "Drinking Water Disinfection System" 

3) Which was the first country to print plastic currency ?
1) Canada
2) Sweden
3) Australia
4) New Zealand

Ans: Australia

4) Which one is the first web browser invented in 1990
A) Internet Explorer
B) Mosaic
C) Mozilla
D) Nexus

Ans: Nexus

5) Who co-founded Hotmail in 1996 and then sold the company to Microsoft?
A) Shawn Fanning
B) Ada Byron Lovelace
C) Sabeer Bhatia
D) Ray Tomlinson

Ans: Sabeer Bhatia

6) Which state government has introduced a unique LIC policy of Rs 5.00 lakh for farmers of age group 18-59 years ?
1) Uttar Pradesh
2) Madhya Pradesh
3) Telangana
4) Maharashtra

Ans: Telangana 

7) World's First International Airport fully equipped with solar energy is located at -
1) Bengaluru
2) Kochi
3) Ahmedabad
4) Kozhikode

Ans: Kochi

8) Mark Zuckerberg is the owner of
A) Facebook
B) Google
C) Linux
D) Linkedln

Ans: Facebook

9) Which of the following was invented by Wilhelm Roentgen ?
1) Radio
2) X-Ray Machine
3) Electric Bulb
4) None of the above

Ans: X-Ray Machine

10) The depletion in the Ozone layer is caused by -
1) nitrous oxide
2) carbon dioxide
3) chlorofluorocarbons
4) methane

Ans: chlorofluorocarbons

11) What is Jarvik-7 ?
1) Electronic leg
2) Pace-maker
3) Artificial heart
4) Artificial eye

Ans: Artificial heart 

12) Which of the following is the best energy source in view of keeping environment clean?
1) Solar cells
2) Nuclear fission
3) Petroleum product
4) Forest product

Ans: Solar cells

13) In which decade were the first successful diode and triode vacuum tubes invented?
A) 1800s
B) 1880s
C) 1890s
D) 1900s

Ans: 1900s

14) Which of the following space agencies has launched the LISA Pathfinder ?
1) Japan Aerospace Exploration Agency
2) NASA
3) European Space Agency
4) China National Space Administration

Ans: European Space Agency 

15) Which of the following is a "Fire and Forget" anti tank missile?
1) Trishul
2) Agni
3) Akash
4) Nag

Ans: Nag

16) Paper was invented in -
1) India
2) Egypt
3) Greece
4) China

Ans: China

17) Who invented the Thermos Flask?
1) James Dewar
2) Thomas Alva Edison
3) Humphry Davy
4) Richard J. Galling

Ans: James Dewar 

18) Heavy Water is normally used by which of the following industries?
1) Pharma Industry
2) Paper Industry
3) Nuclear Power generation plants
4) Sugar plants

Ans: Nuclear Power generation plants 

19) The device used for locating submerged object sunder sea is-
1) Sonar
2) Radar
3) Laser
4) Maser

Ans: Sonar 

20) ISP stands for...
A) Internet Survey Period
B) Integrated Service Provider
C) Internet Security Protocol
D) Internet Service Provider

Ans: Internet Service Provider

Most Important Science GK Question ans Answer for SCC Exam

1. Carbon dioxide is called a greenhouse gas because

(A) Its concentration remains always higher than other gases
(B) It is used in photosynthesis
(C) It absorbs infrared radiation
(D) It emits visible radiation

Answer: It absorbs infrared radiation

2. What is the major role of a greenhouse gas that contributes to temperature rise of the earth’s surface?

(A)Transparent to both incoming sunlight and outgoing infrared radiation
(B) Stops both incoming sunlight and outgoing infrared radiation
(C) Lets outgoing infrared radiation pass through but stops incoming sunlight
(D) Lets incoming sunlight pass through but stops outgoing infrared radiation

Answer: Stops both incoming sunlight and outgoing infrared radiation

3. Which among the following nontoxic gases helps in formation of enzymes which ripen fruit?

(A) Acetylene
(B) Ethane
(C) Methane
(D) Carbon dioxide

Answer:Ethane

4.Which one among the following is strong smelling agent added to LPG cylinder to help in the detection of gas leakage?

(A) Ethanol
(B) Thioethanolamine
(C) Methane
(D) Chloroform

Answer:Thioethanolamine

5.The major component in LPG is

(A) Methane
(B) butane
(C) ethane
(D) propane

Answer:butane

6.The vertical movement of air is termed as

(A) wind
(B) Air Current
(C) Air turbulence
(D) Air mobility

Answer: Air Current

7.Which of the following is not a method of preparing oxygen?

(A) Electrolysis of water
(B) Fractional distillation of liquid air
(C) Decomposition of potassium permanganate
(D) Decomposition of manganese dioxide

Answer:Fractional distillation of liquid air

8.Oxygen and ozone are

(A) allotropes
(B) isomers
(C) isotopes
(D) isobars

Answer:allotropes

9. Ozone layer is present in

(A) Troposphere
(B) Ionosphere
(C) Stratosphere
(D) Exosphere

Answer:Ionosphere

10. Which is the lowest layer of the atmosphere?

(A) Troposphere
(B) Stratosphere
(C) Mesosphere
(D) Thermosphere

Answer:Troposphere

11. Which one of the following is a major constituent of Biogas?

(A) Carbon dioxide
(B) Methane
(C) Hydrogen
(D) Nitrogen Dioxide

Answer:Methane

12.Sea breeze is formed during

(A) Day time
(B) Night time
(C) Both
(D) Seasonal

Answer:Day time

13.The Refrigerant 'FREON' is

(A) Calcium Tetra Flouride
(B) Diflouro Dichloro Methane
(C) Flourspar and Felspar
(D) Hydrofluosilicic Acid

Answer:Diflouro Dichloro Methane

14.Now a days, Yellow lamps are frequently used as street lights. Which among the following gases, is used in these lamps?

(A) Sodium
(B) Neon
(C) Hydrogen
(D) Nitrogen

Answer:Sodium

15.The atmospheric air is held to the earth by

(A) Gravity
(B) Winds
(C) Clouds
(D) Rotation of the earth

Answer:Gravity

16.The Noble Gas used for the treatment of cancer is ___?

(A) Helium
(B) Argon
(C) Krypton
(D) Radon

Answer:Argon

17. The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organisms is

(A) 4 – 6
(B) 2 – 4
(C) 8 – 10
(D) 12 - 16

Answer:4 – 6

18.Troposphere is the hottest part of the atmosphere because

(A) it is closest to the Sun
(B) there are charged particles in it
(C) it is heated by the Earth’s surface
(D) heat is generated in it

Answer:it is heated by the Earth’s surface

19.Which of the following is the lightest gas?

(A) hydrogen
(B) helium
(C) xenon
(D) radon

Answer: hydrogen

20.What is the chemical name of Laughing Gas?

(A) Silver nitrate
(B) Sodium carbonate
(C) Calcium sulphat
(D) Nitrous oxide

Answer:Nitrous oxide

Important Railway, Government Exam Questions with Answer

Important Government Exam Questions with Answer

1) Which instrument is used to measure electric current?

A. Electrometer
B. Rheostatee
C. Volmeter
D. Ammeter

 Answer: Ammeter


2) Electric transformers are used to

A. Filter current
B. Regulate current
C. Serve as fuse
D. Change voltage

 Answer: Change voltage


3) One horse power is equal to

A. 523 watts
B. 746 watts
C. 816 watts
D. 719 watts

 Answer: 746 watts


4) Optics is the study of

A. Nature and properties of light
B. Old age, its phenomenon, disease etc
C. Disease of the nervous system
D. Symbolic representations

 Answer: Nature and properties of light


5) The gases used in different types of welding would include

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

 Answer: oxygen and acetylene


6) In which of the following activities silicon carbide is used?

A. Making cement and glass
B. Disinfecting water of ponds
C. cutting very hard substances
D. Making casts for statues

 Answer: cutting very hard substances


7) The average salinity of sea water is

A. 3%
B. 3.5%
C. 2.5%
D. 2%

 Answer: 3.5%


8) Which of the gas is not known as greenhouse gas?

A. Methane
B. Carbon dioxide
C. Nitrous oxide
D. Hydrogen

 Answer: Hydrogen


9) Which of the following are longest cells of human body?

A. Pancreatic cells
B. Epethelial cells
C. Nerve cells
D. Epidermal cells

 Answer: Nerve cells


10) Which organ is affected by Pneumonia disease?

A. Skin and intestine
B. Urinary tract
C. Liver
D. Lungs

 Answer: Lungs


11) Water passes from the soil into the root hair by a physical process called :

A. Osmosis
B. Diffusion
C. Transpiration
D. Absorption

 Answer: Osmosis


12) Evaporation of water is

A. A process accompained by a chemical reaction
B. An endothermic Change
C. An exothermic change
D. An process in which no heat exchange reaction

 Answer: An endothermic Change


13) The pitch of the sound is measured by its

A. Intensity
B. waveform
C. Frequency
D. Loudness

 Answer: Frequency


14) Which of the following acts as a resistance against disease in the body?

A. Carbohydrates
B. Red corpuscles
C. Vitamins
D. White corpuscles

 Answer: White corpuscles


15) Which of the following normally warms up faster when heat is applied?

A. Water
B. Glass
C. Iron
D. Wood

 Answer: Iron


16) The person suffering from “myopia” cannot see the objects at:

A. Near distance
B. Longer distance
C. any distance
D. Close to eye

 Answer: Longer distance


17) The group of metals Fe, Co, Ni may best called as

A. Transition metals
B. Main group metals
C. Alkali metals
D. Rare metals

 Answer: Transition metals



18) Heavy water is

A. Deuterium oxide
B. PH7
C. Rain water
D. Tritium oxide

 Answer: Deuterium oxide


19) The word CNG in the transport network system stands for

A. Chlorine Natural Gas
B. Commercial Natural Gas
C. Compressed Natural Gas
D. Condensed Natural Gas

 Answer: Compressed Natural Gas


20) Blood Pressure in humans is measured using the

A. Sphygmomanometer
B. Thermometer
C. Anemometer
D. None of the above

 Answer: Sphygmomanometer