Home » General Knowledge

General Science

Total 63 questions

PDF
#331
Search

1. Who is the Father of Indian Space Programme?

A
Dr Vikram Ambalal Sarabhai
B
Dr Satish Dhawan
C
Dr Homi J Bhabha
D
Dr Krishnaswami Kasturirangan
Detailed Explanation
Hide
Dr Vikram A. Sarabhai is regarded as the founding father of India’s space programme. ISRO was formed on 15 August 1969.
#335
Search

2. Which of the following has the maximum percentage in sea water?

A
Magnesium Chloride
B
Magnesium Sulphate
C
Potassium Sulphate
D
Sodium Chloride
Detailed Explanation
Hide
Sodium chloride is the major dissolved salt in seawater and accounts for the largest share of its dissolved salts. Average ocean salinity is about 35‰, or 3.5% by mass.
#336
Search

3. The mean distance from the Sun to the Earth is known as:

A
Light year
B
Parallactic second
C
Astronomical unit
D
Angstrom
Detailed Explanation
Hide
An astronomical unit (AU) is the mean Earth–Sun distance. 1 AU is about 149.6 million km.
#341
Search

4. In human digestive system, the process of digestion starts in:

A
Oesophagus
B
Buccal cavity
C
Duodenum
D
Stomach
Detailed Explanation
Hide
Digestion begins in the mouth or buccal cavity, where chewing and salivary enzymes begin chemical digestion of starch.
#342
Search

5. What is measured in hertz?

A
Frequency
B
Energy
C
Heat
D
Quality
Detailed Explanation
Hide
Hertz (Hz) is the SI unit of frequency. 1 hertz equals one cycle or event per second.
#405
Search

6. A solar cooker works on the same principle as:

A
Bolometer
B
Pyrometer
C
Greenhouse
D
Solar PV cell
Detailed Explanation
Hide
A solar cooker traps solar radiation and heat, using a greenhouse-effect-like heat-retention principle. Solar PV cells instead convert sunlight into electricity.
#406
Search

7. Animals that eat both plants and animals are called:

A
Neither carnivores, omnivores nor herbivores
B
Carnivores
C
Herbivores
D
Omnivores
Detailed Explanation
Hide
Omnivores consume both plant and animal matter. Herbivores mainly eat plants, while carnivores mainly eat animals.
#409
Search

8. The speed of wind is measured by:

A
Wind vane
B
Wind rose
C
Barometer
D
Anemometer
Detailed Explanation
Hide
An anemometer measures wind speed. A wind vane shows wind direction and a barometer measures atmospheric pressure.
#428
Search

9. Approximate percentage of carbon in Earth’s crust is:

A
0.045%
B
0.025%
C
0.015%
D
0.005%
Detailed Explanation
Hide
Carbon makes up about 0.025% of Earth’s crust by mass. Despite its low abundance, carbon forms an exceptionally large number of compounds.
#438
Search

10. Rickets and night blindness are caused by deficiency of:

A
Vitamin D, Vitamin A
B
Vitamin D, Vitamin C
C
Vitamin B1, Vitamin C
D
Vitamin E, Vitamin A
Detailed Explanation
Hide
Vitamin D deficiency causes rickets by disturbing calcium and phosphate metabolism. Vitamin A deficiency can cause night blindness and impaired dark adaptation.
#439
Search

11. Which acid is predominantly found in tomatoes?

A
Acetic acid
B
Tartaric acid
C
Oxalic acid
D
Lactic acid
Detailed Explanation
Hide
Among the given options, oxalic acid is the intended answer; tomatoes contain several organic acids that contribute to their characteristic taste.
#467
Search

12. The nucleic acid present in coronavirus is:

A
DNA
B
Oxyribonucleic acid
C
RNA
D
Chromatin
Detailed Explanation
Hide
Coronaviruses are positive-sense single-stranded RNA viruses. Their RNA genome is enclosed inside the viral particle.
#468
Search

13. The main constituent of LPG is:

A
Hexane
B
Pentane
C
Butane
D
Methane
Detailed Explanation
Hide
LPG mainly contains propane and butane. Among the given choices, butane is correct; the exact mixture varies by source and season.
#469
Search

14. The first rocket launched from India was in:

A
1963
B
1977
C
1948
D
1973
Detailed Explanation
Hide
The first sounding rocket was launched from Thumba, Kerala, on 21 November 1963. It marked the beginning of India’s organised space programme; ISRO was established in 1969.
#486
Search

15. What is the full form of GSM?

A
Geographic System for Mobility
B
Global System for Mobile Communications
C
Great System for Mobiles
D
Grand System for Mobility
Detailed Explanation
Hide
GSM stands for Global System for Mobile Communications, a digital cellular communication standard.
#558
Search

16. Identify the unit of measuring intensity of sound:

A
Knots
B
Ampere
C
Candela
D
Decibel
Detailed Explanation
Hide
Sound level is expressed in decibels (dB), a logarithmic unit. The term bel was named after Alexander Graham Bell.
#677
Search

17. Which one of the following waves is used for detecting forgery in currency notes?

A
Ultraviolet waves
B
Infrared waves
C
Radio waves
D
Microwaves
Detailed Explanation
Hide
An authentic paper currency will fluoresce when it is illuminated by long wave ultraviolet light Ultraviolet security features are used to reveal fluorescent markings on many genuine currency notes
#737
Search

18. World Bank’s headquarter is located at:

A
Manila
B
Washington DC
C
Newyork
D
Geneva
Detailed Explanation
Hide
The headquarters of the World Bank is situated in Washington DC, United States The World Bank Group’s headquarters are in Washington, D.C., United States
#754
Search

19. The group of stars that indicates the direction of Poles is:

A
Saptarishi
B
Mrig
C
Scorpio
D
Taurus
Detailed Explanation
Hide
The Saptarishi constellation (Big Dipper/Ursa Major) is used as a guide to locate the Pole Star and hence the north direction.
#766
Search

20. Light year is a unit for measurement of:

A
Very large distances
B
Time interval in years
C
Amount of light received on earth in a year
D
Mass of atoms
Detailed Explanation
Hide
In scientific usage, a light-year is a unit of length that is equal to the distance light travels in one year in the vacuum of space.

Quick Summary

0 Correct
0 Incorrect
0% Accuracy
0 Attempt
20 Total
Next →
1234Next →

General Science ▾