MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How does a red rose appear in green light? |
| A. | yellow |
| B. | Pink |
| C. | Black |
| D. | Red |
| Answer» D. Red | |
| 2. |
By which device is the purity of milk measured? |
| A. | manometer |
| B. | Hydrometer |
| C. | Lactometer |
| D. | Fadometer |
| Answer» D. Fadometer | |
| 3. |
The function of dynamo is? |
| A. | Converting electrical energy into mechanical energy |
| B. | Converting mechanical energy into electrical energy |
| C. | Converting electrical energy into heat |
| D. | None of these |
| Answer» C. Converting electrical energy into heat | |
| 4. |
Who invented television? |
| A. | J.R. L. Baird |
| B. | Macmillan |
| C. | James Watt |
| D. | None of these |
| Answer» B. Macmillan | |
| 5. |
What chemical substance is present in bones and teeth, what is it called? |
| A. | calcium chloride |
| B. | calcium borate |
| C. | calcium phosphate |
| D. | calcium sulfate |
| Answer» D. calcium sulfate | |
| 6. |
What are the household appliances that damage the ozone layer? |
| A. | Computer |
| B. | Television |
| C. | air conditioner |
| D. | cooler |
| Answer» D. cooler | |
| 7. |
Best conductor of heat is? |
| A. | Silver |
| B. | copper |
| C. | gold |
| D. | none of these |
| Answer» B. copper | |
| 8. |
Which of the following liquids is a very good conductor of heat? |
| A. | Ether |
| B. | Benzene |
| C. | mercury |
| D. | water |
| Answer» D. water | |
| 9. |
The change of state of matter from solid to liquid is called? |
| A. | Evaporation |
| B. | melting |
| C. | boiling |
| D. | none of these |
| Answer» C. boiling | |
| 10. |
What is the process of making camphor vapor from solid camphor called? |
| A. | sublimation |
| B. | Evaporation |
| C. | thaw |
| D. | none of these |
| Answer» B. Evaporation | |
| 11. |
The process of changing a liquid into vapor before its boiling point is called |
| A. | Condensation |
| B. | freezing |
| C. | Evaporation |
| D. | none of these |
| Answer» D. none of these | |
| 12. |
The first law of thermodynamics is protected by? |
| A. | Momentum |
| B. | Energy |
| C. | both energy and momentum |
| D. | none of these |
| Answer» C. both energy and momentum | |
| 13. |
If the temperature of a place increases suddenly, then what is the relative humidity? |
| A. | increases |
| B. | decreases |
| C. | remains stationary |
| D. | keeps on increasing |
| Answer» C. remains stationary | |
| 14. |
The cell division which takes place without division into chromosomes is called? |
| A. | Mitosis |
| B. | mitosis |
| C. | meiosis |
| D. | sporogenesis |
| Answer» C. meiosis | |
| 15. |
When bleaching powder is treated with carbon dioxide, then? |
| A. | it absorbs the gas |
| B. | chlorine gas is released |
| C. | there is no reaction |
| D. | calcium chloride is formed |
| Answer» C. there is no reaction | |
| 16. |
Which metal does not react with copper sulfate solution? |
| A. | Fe |
| B. | Ag |
| C. | Mg |
| D. | Zn |
| Answer» C. Mg | |
| 17. |
Who was the father of the Binomial Nomenclature of organisms? |
| A. | Mendel |
| B. | Linnaeus |
| C. | Lamarck |
| D. | Darwin |
| Answer» C. Lamarck | |
| 18. |
Who discovered hydrogen? |
| A. | Priestley |
| B. | Boyle |
| C. | Charles |
| D. | Cavendish |
| Answer» E. | |
| 19. |
Artificial fission of molecules was discovered by? |
| A. | Dalton |
| B. | Fermi |
| C. | Rutherford |
| D. | Madame Curie |
| Answer» C. Rutherford | |
| 20. |
The unit of which quantity is taken from Ohm's law? |
| A. | electric current |
| B. | resistance |
| C. | of potential difference |
| D. | electric capacitance |
| Answer» C. of potential difference | |
| 21. |
Who was the scientist who discovered the fact that the center of the planetary system is the Sun and not the Earth? |
| A. | Copernicus |
| B. | Kepler |
| C. | Newton |
| D. | Galileo |
| Answer» B. Kepler | |
| 22. |
Who was the inventor of the mercury thermometer? |
| A. | Edison |
| B. | Fahrenheit |
| C. | Galileo |
| D. | Hicks |
| Answer» C. Galileo | |
| 23. |
Who discovered 'Streptomycin'? |
| A. | Waxman |
| B. | Rutherford |
| C. | Bushwell |
| D. | none of these |
| Answer» B. Rutherford | |
| 24. |
America was discovered by? |
| A. | Vasco da Gama |
| B. | Columbus |
| C. | Marconi |
| D. | none of these |
| Answer» C. Marconi | |
| 25. |
Who invented the bulb? |
| A. | Rutherford |
| B. | Fleming |
| C. | Edison |
| D. | Ohm |
| Answer» D. Ohm | |
| 26. |
Who invented the space telescope? |
| A. | Galileo |
| B. | Village bull |
| C. | Kepler |
| D. | none of the above |
| Answer» E. | |
| 27. |
Ptolemy's theory of the earth is that? |
| A. | Earth is the center of the universe and the Sun revolves around it |
| B. | Earth is not the center of the universe and the Sun does not revolve around it |
| C. | Earth rotates as well as rotates |
| D. | Earth is a satellite of the Sun |
| Answer» B. Earth is not the center of the universe and the Sun does not revolve around it | |
| 28. |
What is the unit of light year? |
| A. | time |
| B. | intensity of light |
| C. | distance |
| D. | none of these |
| Answer» D. none of these | |
| 29. |
Smallpox vaccine was invented by? |
| A. | Priestley |
| B. | Ruffetin |
| C. | Edward Jenner |
| D. | Lloyd |
| Answer» D. Lloyd | |
| 30. |
Penicillin was invented by? |
| A. | Alexander Fleming |
| B. | Harvard |
| C. | Hanson |
| D. | Robert Koch |
| Answer» B. Harvard | |
| 31. |
Which of the following scientist discovered the principles of heredity? |
| A. | Darwin |
| B. | Mendel |
| C. | DeVries |
| D. | Lamarck |
| Answer» C. DeVries | |
| 32. |
What is the unit of Volt? |
| A. | electric current |
| B. | resistance |
| C. | of potential difference |
| D. | of specific resistance |
| Answer» D. of specific resistance | |
| 33. |
With which invention is Atohan related? |
| A. | artificial radioactivity |
| B. | Nuclear Fusion |
| C. | nuclear fission |
| D. | Relativistic Theory |
| Answer» D. Relativistic Theory | |
| 34. |
Who invented the miner's safety lamp? |
| A. | Edison |
| B. | Humphrey Davy |
| C. | Richard Arkwright |
| D. | Faraday |
| Answer» C. Richard Arkwright | |
| 35. |
Who invented the electronic computer? |
| A. | Pascal |
| B. | J. P. Eckert |
| C. | Charles Babbage |
| D. | Kalydar. shesath |
| Answer» C. Charles Babbage | |
| 36. |
Who invented the fountain pan? |
| A. | Watermen |
| B. | Gillette |
| C. | Faraday |
| D. | Lead Steiner |
| Answer» B. Gillette | |
| 37. |
D.N.A. Who had discovered it? |
| A. | Prof. Chandrashekhar |
| B. | Watson and Creek |
| C. | Dalton |
| D. | Khurana |
| Answer» D. Khurana | |
| 38. |
Who invented the writing system for the blind to read? |
| A. | Madame Curie |
| B. | Einstein |
| C. | Louis Braille |
| D. | Archimedes |
| Answer» D. Archimedes | |
| 39. |
What is the unit of power? |
| A. | Newton |
| B. | Watt |
| C. | Joule |
| D. | none of these |
| Answer» D. none of these | |
| 40. |
What species are found abundantly in ecotone, what is called? |
| A. | Edge species |
| B. | Keystone species |
| C. | Endemic species |
| D. | Foster species |
| Answer» B. Keystone species | |
| 41. |
Who propounded the term ecology? |
| A. | Charles Darwin |
| B. | Robert Whitaker |
| C. | Arthur Tansley |
| D. | Ernest Hackle |
| Answer» E. | |
| 42. |
Which government has launched 'Mo Sarkar' campaign? |
| A. | West Bengal |
| B. | Tripura |
| C. | Nagaland |
| D. | Odisha |
| Answer» E. | |
| 43. |
Which of the following multilateral conference is meant to protect human health and the environment from sustainable organic pollutants? |
| A. | bone conference |
| B. | Stockholm Conference |
| C. | Rotterdam Conference |
| D. | Basel Conference |
| Answer» C. Rotterdam Conference | |
| 44. |
Which of the following disease reduces the age of laborers working in coal mine and that disease is called Black Lung disease? |
| A. | Clomgolanosis |
| B. | progressive massive fibrosis |
| C. | mesothelioma |
| D. | None of these |
| Answer» B. progressive massive fibrosis | |
| 45. |
Which award is given to those who show indomitable courage in the field of wildlife conservation? |
| A. | Indira Gandhi Environment Award |
| B. | Medini Award Scheme |
| C. | Amrita Devi Bishnoi Award |
| D. | Pitambar Pant National Award |
| Answer» D. Pitambar Pant National Award | |
| 46. |
Where is Dachigam National Park? |
| A. | Jammu Kashmir |
| B. | Himachal Pradesh |
| C. | Uttarakhand |
| D. | Punjab |
| Answer» B. Himachal Pradesh | |
| 47. |
In which unit is the thickness of the stratospheric ozone gas layer measured? |
| A. | Caverts |
| B. | Dobson unit |
| C. | Melsen Unit |
| D. | None of these |
| Answer» C. Melsen Unit | |
| 48. |
From which source is the list of countries emitting carbon dioxide based on carbon dioxide emissions? |
| A. | Burning of fossil fuels |
| B. | Cement Industry |
| C. | Both of the above |
| D. | None of these |
| Answer» D. None of these | |
| 49. |
The most commonly found green house gas in the world is: - |
| A. | carbon dioxide |
| B. | Water vapor |
| C. | Sulfur Dioxide |
| D. | ozone |
| Answer» C. Sulfur Dioxide | |
| 50. |
The Cartagena protocol is about safe use, transfer and handling? |
| A. | nuclear waste |
| B. | invasive alien species |
| C. | Modified Living Organisms (LMO) |
| D. | None of these |
| Answer» C. Modified Living Organisms (LMO) | |