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. |
Which color is used in danger signal? |
| A. | yellow color |
| B. | purple colour |
| C. | blue color |
| D. | The colour red |
| Answer» E. | |
| 2. |
What type of image is formed on a cinema screen? |
| A. | Virtual reflection |
| B. | real image |
| C. | both |
| D. | all statements are true |
| Answer» C. both | |
| 3. |
How does the pupil of the eye function? |
| A. | like a variable gate |
| B. | Like the optic nerve |
| C. | like a puppet |
| D. | other |
| Answer» B. Like the optic nerve | |
| 4. |
The near point of an eye is? |
| A. | 2.5 cm |
| B. | 25 cm |
| C. | 2.5 m |
| D. | 3 m |
| Answer» C. 2.5 m | |
| 5. |
What is the image formed on the retina of a normal eye? |
| A. | virtual and erect |
| B. | real and straight |
| C. | real and reverse |
| D. | virtual and inverted |
| Answer» D. virtual and inverted | |
| 6. |
What is kilowatt hour unit? |
| A. | electric charge |
| B. | of energy |
| C. | potential difference electricity |
| D. | of power |
| Answer» C. potential difference electricity | |
| 7. |
What is the process of adjustment in the eye lens? |
| A. | by iris |
| B. | by eye lens |
| C. | by ciliary muscles |
| D. | by cornea |
| Answer» D. by cornea | |
| 8. |
What type of beam of light is obtained from a torch? |
| A. | parallel beam |
| B. | convergent beam |
| C. | divergent beam |
| D. | all statements are true |
| Answer» C. divergent beam | |
| 9. |
Who discovered the 'solar system'? |
| A. | J. L. Baird |
| B. | galileo |
| C. | Kepler |
| D. | copernicus |
| Answer» D. copernicus | |
| 10. |
What do sunlight, temperature, rainfall, pressure and wind velocity together make up? |
| A. | environment |
| B. | environment |
| C. | organic compound |
| D. | climatic factors |
| Answer» E. | |
| 11. |
The explosive of trinitrotoluene is done by a mixture of which of the following? |
| A. | ammonium nitrite |
| B. | ammonium chloride |
| C. | ammonium nitrate |
| D. | ammonium sulfate |
| Answer» D. ammonium sulfate | |
| 12. |
What is the reason for solar energy? |
| A. | Fission reactions |
| B. | fusion reactions |
| C. | chemical reactions |
| D. | combustion reactions |
| Answer» C. chemical reactions | |
| 13. |
Who invented Portland cement? |
| A. | Dennis Gayson |
| B. | leonardo-da-vinci |
| C. | Percy L. Spencer |
| D. | joseph aspadeen |
| Answer» E. | |
| 14. |
Which one of the following metals pollutes water the most? |
| A. | lead |
| B. | arsenic |
| C. | magnesium |
| D. | potassium |
| Answer» C. magnesium | |
| 15. |
Which of the following are called the lines that meet at the places where there is a thunderstorm? |
| A. | isochrones |
| B. | isophenes |
| C. | isobronts |
| D. | isohites |
| Answer» D. isohites | |
| 16. |
Which particle is needed to continue the continuous process of uranium fission? |
| A. | proton |
| B. | electron |
| C. | Neutron |
| D. | none of these |
| Answer» D. none of these | |
| 17. |
As the temperature decreases, the resistance of an object? |
| A. | goes down |
| B. | keeps growing |
| C. | remains unchanged |
| D. | initially decreases and then increases |
| Answer» B. keeps growing | |
| 18. |
Which is an intermediate range nuclear capable missile manufactured in India? |
| A. | Earth |
| B. | fire |
| C. | trident |
| D. | snake |
| Answer» C. trident | |
| 19. |
Who among the following is the person who developed the M.M. |
| A. | Pal.C. loterber |
| B. | Sydney Brenner |
| C. | H. Robert Horwitz |
| D. | John. E. Slutton |
| Answer» B. Sydney Brenner | |
| 20. |
The fuel used in nuclear reactors is? |
| A. | petrol |
| B. | Coal |
| C. | uranium |
| D. | burning gases |
| Answer» D. burning gases | |
| 21. |
Is graphite used in nuclear reactors? |
| A. | as a moderator |
| B. | as fuel |
| C. | as a lubricant |
| D. | as an insulator |
| Answer» B. as fuel | |
| 22. |
What is ultimately formed as a result of the radioactive decomposition of uranium? |
| A. | Thorium |
| B. | radium |
| C. | lead |
| D. | polonium |
| Answer» D. polonium | |
| 23. |
Always 'cool system' in a refrigerator? |
| A. | should be at the bottom |
| B. | should be on top |
| C. | can be anywhere |
| D. | should be in the middle |
| Answer» C. can be anywhere | |
| 24. |
Why is 'helium' gas filled in balloons? |
| A. | it is lighter than air |
| B. | its atomic number is 2 |
| C. | it is an excellent gas |
| D. | it is one of the constituents of water |
| Answer» B. its atomic number is 2 | |
| 25. |
In which variety of coal are identifiable remains of parent plant matter found? |
| A. | lignite |
| B. | anthracite |
| C. | bitumen |
| D. | Pete |
| Answer» E. | |
| 26. |
Who among the following is the person who is called the father of Indian missile technology? |
| A. | Dr. APJ Abdul Kalam |
| B. | Dr. U. R. Rao |
| C. | Dr. Homi Bhabha |
| D. | Dr. Chidambaram |
| Answer» D. Dr. Chidambaram | |
| 27. |
Uranium eventually turns into a stable isotope of which element? |
| A. | Thorium |
| B. | radium |
| C. | polonium |
| D. | lead |
| Answer» E. | |
| 28. |
The half-life of a radioactive substance is four months, in how many months three-fourth of it is destroyed? |
| A. | 4 month |
| B. | 6 months |
| C. | 8 months |
| D. | 12 months |
| Answer» D. 12 months | |
| 29. |
Which of the following is a green house gas? |
| A. | nitrogen |
| B. | oxygen |
| C. | ozone |
| D. | Carbon dioxide |
| Answer» E. | |
| 30. |
Which of the following is used to measure very short time intervals accurately? |
| A. | quartz watches |
| B. | pulsar |
| C. | white vaman |
| D. | atomic clocks |
| Answer» E. | |
| 31. |
Which of the following is used in refrigeration? |
| A. | chlorine |
| B. | sulphur dioxide |
| C. | phosphine |
| D. | freon |
| Answer» E. | |
| 32. |
Which of the following is the correct description of 'Agni'? |
| A. | Versatile tank |
| B. | fighter plane |
| C. | long range cannon |
| D. | long range missile |
| Answer» E. | |
| 33. |
Because of what is not there on the moon, there is no life of any kind? |
| A. | sulfur |
| B. | nitrogen |
| C. | water |
| D. | oxygen |
| Answer» D. oxygen | |
| 34. |
How much of the total ten parts of the mass of the iceberg flowing in the ocean will be above the water level? |
| A. | A portion |
| B. | two parts |
| C. | four parts |
| D. | Six parts |
| Answer» B. two parts | |
| 35. |
When lemon juice is poured on the baking soda, it rises sharply because of the gas produced by it? |
| A. | oxygen |
| B. | hydrogen |
| C. | Carbon dioxide |
| D. | none of these |
| Answer» D. none of these | |
| 36. |
Where was INSAT-2E launched? |
| A. | kauru |
| B. | Baikanur |
| C. | Chandipur |
| D. | Sriharikota |
| Answer» B. Baikanur | |
| 37. |
Which of the following is used as a fuel in a nuclear reactor? |
| A. | uranium |
| B. | Coal |
| C. | diesel |
| D. | radium |
| Answer» B. Coal | |
| 38. |
The phenomenon of radioactivity was discovered by? |
| A. | J. J. By Thomson |
| B. | by madam curie |
| C. | Becquerel |
| D. | by Roentgen |
| Answer» D. by Roentgen | |
| 39. |
Human red blood cells at very high altitude? |
| A. | increases the number of |
| B. | increases in size |
| C. | decreases the number of |
| D. | size becomes smaller |
| Answer» B. increases in size | |
| 40. |
What are the main colors in photography? |
| A. | red, yellow, green |
| B. | red, blue, yellow |
| C. | blue, yellow, green |
| D. | red, blue, green |
| Answer» E. | |
| 41. |
The radioisotope used in the treatment of skin diseases is? |
| A. | Radio Cobalt |
| B. | Radio lead |
| C. | Radio iodine |
| D. | Radio phosphorus |
| Answer» E. | |
| 42. |
Who invented the laser? |
| A. | Sir Frank Whittle |
| B. | Seymour Cray |
| C. | Fred Morrison |
| D. | T. H. Memon |
| Answer» E. | |
| 43. |
Who developed the atomic bomb? |
| A. | Werner von Braun |
| B. | J. Robert Oppenheimer |
| C. | Samuel Cohen |
| D. | edward taylor |
| Answer» C. Samuel Cohen | |
| 44. |
Who propounded the Krishna hole theory? |
| A. | s. Chandrashekhar |
| B. | Hargobind Khurana |
| C. | H. J. Bhabha |
| D. | none of these |
| Answer» B. Hargobind Khurana | |
| 45. |
Who developed the hydrogen bomb? |
| A. | J. Robert Oppenheimer |
| B. | edward taylor |
| C. | Samuel Cohen |
| D. | Werner von Braun |
| Answer» C. Samuel Cohen | |
| 46. |
Which of the following metals is not attracted by a magnet? |
| A. | iron |
| B. | cobalt |
| C. | Nickel |
| D. | bismuth |
| Answer» E. | |
| 47. |
What is the unit of magnetic flux? |
| A. | weber |
| B. | tesla |
| C. | Gauss |
| D. | none of these |
| Answer» B. tesla | |
| 48. |
Who developed the missile? |
| A. | Werner von Braun |
| B. | J. Robert Oppenheimer |
| C. | edward taylor |
| D. | Samuel Cohen |
| Answer» D. Samuel Cohen | |
| 49. |
Alternating current is converted into direct current? |
| A. | by transformer |
| B. | by rectifier |
| C. | by oscillator |
| D. | by dynamo |
| Answer» D. by dynamo | |
| 50. |
Can the room be cooled? |
| A. | from cooking gas |
| B. | by melting a solid |
| C. | by releasing compressed gas |
| D. | by water flow |
| Answer» D. by water flow | |