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. |
*/*_The variety of coal in which the deposit contains recognizable traces of the original plant material is? |
| A. | Bitumen |
| B. | Anthracite |
| C. | Lignite |
| D. | Peat |
| Answer» E. | |
| 2. |
*/*_Which of the following does not contain a coinage metal?? |
| A. | Silver and Gold |
| B. | Zinc and Gold |
| C. | Copper and Silver |
| D. | Copper and Gold |
| Answer» C. Copper and Silver | |
| 3. |
*/*_Marsh gas is? |
| A. | Nitrogen |
| B. | Ethane |
| C. | Methane |
| D. | Hydrogen |
| Answer» D. Hydrogen | |
| 4. |
*/*_Fathom is the unit of? |
| A. | Sound |
| B. | Depth |
| C. | Frequency |
| D. | Distance |
| Answer» C. Frequency | |
| 5. |
*/*_Which of the following is an element?? |
| A. | Ruby |
| B. | Sapphire |
| C. | Emerald |
| D. | Diamond |
| Answer» E. | |
| 6. |
*/*_The main constituents of pearls are? |
| A. | Calcium Oxide and Ammonium Chloride |
| B. | Calcium Carbonate and Magnesium Carbonate |
| C. | Aragonite and Conchiolin |
| D. | Ammonium Sulphate and Sodium Carbonate |
| Answer» C. Aragonite and Conchiolin | |
| 7. |
%_Electric current is measure by:_% |
| A. | Commutator |
| B. | Anemometer |
| C. | Ammeter |
| D. | Voltmeter |
| Answer» D. Voltmeter | |
| 8. |
%_Soap is a mixture of sodium or potassium salts of_% |
| A. | Dicarboxylic acids |
| B. | Mono-carboxylic acids |
| C. | Glycerol |
| D. | Tricarboxylic acids |
| Answer» C. Glycerol | |
| 9. |
%_Deep blue colour is imparted to glass by the presence of_% |
| A. | Cupric oxide |
| B. | Nickel oxide |
| C. | Cobalt oxide |
| D. | Iron oxide |
| Answer» D. Iron oxide | |
| 10. |
%_What are metal bearing rocks called?_% |
| A. | Bitumen |
| B. | Bauxite |
| C. | Metalloids |
| D. | Ores |
| Answer» E. | |
| 11. |
%_AIDS is caused by:_% |
| A. | Bacteria |
| B. | Fungus |
| C. | Helminth |
| D. | Virus |
| Answer» E. | |
| 12. |
%_Detergents used for cleaning clothes and utensils contain?_% |
| A. | Bicarbonates |
| B. | Bismuthates |
| C. | Sulphonates |
| D. | Nitrates |
| Answer» D. Nitrates | |
| 13. |
%_How many colours the sunlight spectrum has?_% |
| A. | Three |
| B. | Seven |
| C. | Four |
| D. | Five |
| Answer» C. Four | |
| 14. |
%_Optic fibers are mainly used for which of the following?_% |
| A. | Musical instruments |
| B. | Food industry |
| C. | Weaving |
| D. | Communication |
| Answer» E. | |
| 15. |
%_Mesons are found in_% |
| A. | Laser beam |
| B. | X-rays |
| C. | Gamma rays |
| D. | Cosmic rays |
| Answer» E. | |
| 16. |
%_Which among the following is a positively charged particle emitted by a radioactive element?_% |
| A. | Beta ray |
| B. | Alpha ray |
| C. | Cathode ray |
| D. | Gamma ray |
| Answer» C. Cathode ray | |
| 17. |
%_'No two electrons in an atom can have the same set of four quantum numbers' is_% |
| A. | Newton's law |
| B. | Bohr's law |
| C. | Aufbau principle |
| D. | Pauli's exclusion principle |
| Answer» D. Pauli's exclusion principle | |
| 18. |
%_The isotope of uranium capable of sustaining chain reaction is_% |
| A. | U-235 |
| B. | U-245 |
| C. | U-239 |
| D. | U-238 |
| Answer» B. U-245 | |
| 19. |
_ Which of the following is a non metal that remains liquid at room temperature?$? |
| A. | Phosphorous |
| B. | Bromine |
| C. | Chlorine |
| D. | Helium |
| Answer» C. Chlorine | |
| 20. |
_ Kilohertz is a unit which measures$? |
| A. | Power used by a current of one ampere |
| B. | Electromagnetic radio wave frequencies |
| C. | Voltage |
| D. | Electric resistance |
| Answer» C. Voltage | |
| 21. |
_ Which of the following is in liquid form at room temperature?$? |
| A. | Lithium |
| B. | Sodium |
| C. | Francium |
| D. | Cerium |
| Answer» D. Cerium | |
| 22. |
_ Actinides are the elements with atomic numbers from$? |
| A. | 97 to 104 |
| B. | 101 to 115 |
| C. | 89 to 103 |
| D. | 36 from 43 |
| Answer» D. 36 from 43 | |
| 23. |
_ The element common to all acids is$? |
| A. | Hydrogen |
| B. | Carbon |
| C. | Sulphur |
| D. | Oxygen |
| Answer» B. Carbon | |
| 24. |
_ Permanent hardness of water may be removed by the addition of:$? |
| A. | Sodium Carbonate |
| B. | Alum |
| C. | Potassium Permanganate |
| D. | Lime |
| Answer» B. Alum | |
| 25. |
_ The gases used in different types of welding would include$? |
| A. | Oxygen and Hydrogen |
| B. | Oxygen, Hydrogen, Acetylene and Nitrogen |
| C. | Oxygen, Acetylene and Argon |
| D. | Oxygen and Acetylene |
| Answer» E. | |
| 26. |
_ Galvanised iron sheets have a coating of$? |
| A. | Lead |
| B. | Chromium |
| C. | Zinc |
| D. | Tin |
| Answer» D. Tin | |
| 27. |
_ The gas usually filled in the electric bulb is$? |
| A. | Nitrogen |
| B. | Hydrogen |
| C. | Carbon dioxide |
| D. | Oxygen |
| Answer» B. Hydrogen | |
| 28. |
_ The hardest substance available on earth is$? |
| A. | Gold |
| B. | Iron |
| C. | Diamond |
| D. | Platinum |
| Answer» D. Platinum | |
| 29. |
_ Balloons are filled with$? |
| A. | Nitrogen |
| B. | Helium |
| C. | Oxygen |
| D. | Argon |
| Answer» C. Oxygen | |
| 30. |
_ Permanent hardness of water can be removed by adding:$? |
| A. | Chlorine |
| B. | Washing Soda |
| C. | Potassium Permanganate |
| D. | Bleaching Powder |
| Answer» C. Potassium Permanganate | |
| 31. |
_ One fathom is equal to$? |
| A. | 6 feet |
| B. | 6 meters |
| C. | 60 feet |
| D. | 100 cm |
| Answer» B. 6 meters | |
| 32. |
_ Potassium Permanganate is used for purifying drinking water, because$? |
| A. | It is a sterilising agent. |
| B. | It dissolves the impurities of water. |
| C. | It is a reducing agent. |
| D. | It is an oxidising agent. |
| Answer» E. | |
| 33. |
_ Which of the following is not an isotope of hydrogen?$? |
| A. | Tritium |
| B. | Deuterium |
| C. | Protium |
| D. | Yttrium |
| Answer» E. | |
| 34. |
__Kilowatt is a unit to measure:__ |
| A. | Work |
| B. | Power |
| C. | Electricity |
| D. | Current |
| Answer» C. Electricity | |
| 35. |
__Gypsum is added to cement clinker to__ |
| A. | Increase the tensile strength of cement |
| B. | Decrease the rate of setting of cement |
| C. | Facilitate the formation of colloidal gel |
| D. | Bind the particles of calcium silicate |
| Answer» C. Facilitate the formation of colloidal gel | |
| 36. |
__In vulcanisation, natural rubber is heated with__ |
| A. | Carbon |
| B. | Silicon |
| C. | Sulphur |
| D. | Phosphorous |
| Answer» D. Phosphorous | |
| 37. |
__Which is the absolute temperature scale?__ |
| A. | Celsius |
| B. | Fahrenheit |
| C. | Kelvin |
| D. | All of these |
| Answer» D. All of these | |
| 38. |
__BACK TO VILLAGES slogan was given by:__ |
| A. | Lenin |
| B. | Mao |
| C. | Nehru |
| D. | Patel |
| Answer» C. Nehru | |
| 39. |
__Epoxy resins are used as:__ |
| A. | Detergents |
| B. | Insecticides |
| C. | Adhesives |
| D. | Moth repellents |
| Answer» D. Moth repellents | |
| 40. |
__Which of the following rays are the most penetrating?__ |
| A. | Beta rays |
| B. | Alpha rays |
| C. | Gamma rays |
| D. | X-rays |
| Answer» D. X-rays | |
| 41. |
__Rayon is chemically.__ |
| A. | Cellulose |
| B. | Pectin |
| C. | Glucose |
| D. | Amylase |
| Answer» B. Pectin | |
| 42. |
__The wavelength of X-rays is of the order of__ |
| A. | 10 micron |
| B. | 1 angstrom |
| C. | 1 cm |
| D. | 1 m |
| Answer» C. 1 cm | |
| 43. |
__Which of the following is used as a moderator in nuclear reactor?__ |
| A. | Thorium |
| B. | Graphite |
| C. | Radium |
| D. | Ordinary water |
| Answer» E. | |
| 44. |
__In an atomic nucleus, neutrons and protons are held together by:__ |
| A. | Gravitational forces |
| B. | Exchange forces |
| C. | Coulombic forces |
| D. | Magnetic forces |
| Answer» C. Coulombic forces | |
| 45. |
__Which of the following has a least penetrating power?__ |
| A. | All have same penetrating power |
| B. | Beta Particles |
| C. | Alpha particles |
| D. | Gamma rays |
| Answer» D. Gamma rays | |
| 46. |
_Brass gets discoloured in air because of the presence of which of the following gases in air?$? |
| A. | Oxygen |
| B. | Hydrogen Sulphide |
| C. | Carbon dioxide |
| D. | Nitrogen |
| Answer» C. Carbon dioxide | |
| 47. |
_One kilometer is equal to how many miles?$? |
| A. | 0.84 |
| B. | 0.5 |
| C. | 1.6 |
| D. | 0.62 |
| Answer» E. | |
| 48. |
_Which of the following was to be discovered first in the chromospheres of the sun?$? |
| A. | Krypton |
| B. | Xenon |
| C. | Neon |
| D. | Helium |
| Answer» E. | |
| 49. |
_What is laughing gas?$? |
| A. | Nitrous Oxide |
| B. | Carbon monoxide |
| C. | Sulphur dioxide |
| D. | Hydrogen peroxide |
| Answer» B. Carbon monoxide | |
| 50. |
_The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:$? |
| A. | Bromine |
| B. | Fluorine |
| C. | Chlorine |
| D. | Sulphur |
| Answer» E. | |