MCQOPTIONS
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MCQOPTIONS
This section includes 437 Mcqs, each offering curated multiple-choice questions to sharpen your GENERAL SCIENCE knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Noise or Noise pollution measured in: |
| A. | Phon |
| B. | Deci |
| C. | Decibel |
| D. | Decimal |
| Answer» D. Decimal | |
| 152. |
Kilowatt is a unit to measure: |
| A. | Work |
| B. | Power |
| C. | Electricity |
| D. | Current |
| Answer» C. Electricity | |
| 153. |
Nautical mile is a unit of distance used in: |
| A. | Navigation |
| B. | Road mile |
| C. | Astronomy |
| D. | Measuring the boundaries of a nation |
| Answer» B. Road mile | |
| 154. |
Decibel is the unit used for: |
| A. | Speed of light |
| B. | Intensity of heat |
| C. | Intensity of sound |
| D. | Radio wave frequency |
| Answer» D. Radio wave frequency | |
| 155. |
What are metal bearing rocks called? |
| A. | Bitumen |
| B. | Bauxite |
| C. | Metalloids |
| D. | Ore |
| Answer» D. Ore | |
| 156. |
Which of the following is used by green plants for the manufacture of sugar? |
| A. | Water |
| B. | Sunlight |
| C. | Carbon dioxide |
| D. | All of the above |
| Answer» E. | |
| 157. |
Metal used to make wires for safety fuses must have |
| A. | Low resistivity and low melting point |
| B. | High resistivity and high melting point |
| C. | High resistivity and low melting point |
| D. | Very low resistivity and high melting point |
| Answer» D. Very low resistivity and high melting point | |
| 158. |
Foot and Mouth disease occurs in - |
| A. | Cattle |
| B. | Cattle and pigs |
| C. | Cattle and sheep |
| D. | Cattle, sheep and wine |
| Answer» C. Cattle and sheep | |
| 159. |
Stains Of rust on clothes can be removed by - |
| A. | H2o2 |
| B. | Petrol |
| C. | Alcohol |
| D. | Oxalic acid |
| Answer» E. | |
| 160. |
The naturally occurring anticoagulant in the human blood is - |
| A. | Hirudin |
| B. | Heparin |
| C. | Serotonin |
| D. | Fibrinogen |
| Answer» C. Serotonin | |
| 161. |
The percentage of nitrogen present in ammonia sulphate is - |
| A. | 18% |
| B. | 21% |
| C. | 25% |
| D. | 30.5% |
| Answer» C. 25% | |
| 162. |
A radar that detects the presence of an enemy aircraft uses - |
| A. | Sound waves |
| B. | Radio waves |
| C. | Electric waves |
| D. | Ultrasonic waves |
| Answer» C. Electric waves | |
| 163. |
Which of the following is the major component of ecosystem? |
| A. | Biotic |
| B. | Abiotic |
| C. | Energy |
| D. | All of the above |
| Answer» D. All of the above | |
| 164. |
In a laser (say neon laser) all the atoms emit the light waves of |
| A. | Same frequency |
| B. | Same amplitude |
| C. | Same phase |
| D. | All the above |
| Answer» E. | |
| 165. |
The radioactive element most commonly detected in humans is |
| A. | Potassium-40 |
| B. | Cobalt-60 |
| C. | Iodine-131 |
| D. | Plutonium-238 |
| Answer» B. Cobalt-60 | |
| 166. |
The uranium fuel used worldwide is mainly in the form of |
| A. | U3o8 |
| B. | Uo2 |
| C. | Uf6 |
| D. | U metal |
| Answer» C. Uf6 | |
| 167. |
The percentage of oxygen present in air is approximately- |
| A. | 44% |
| B. | 23% |
| C. | 40% |
| D. | 21% |
| Answer» E. | |
| 168. |
Isotopes are separated by: |
| A. | Crystallisation |
| B. | Sublimation |
| C. | Distillation |
| D. | Filtration |
| Answer» D. Filtration | |
| 169. |
A chronometer measures: |
| A. | Colour contrast |
| B. | Sound waves |
| C. | Time |
| D. | Water waves |
| Answer» D. Water waves | |
| 170. |
Combustion is the process in which |
| A. | No heat is produced |
| B. | No light is produced |
| C. | Only heat is produced |
| D. | Heat and light are produced |
| Answer» E. | |
| 171. |
Which one of the following elements is present in green pigment of leaf? |
| A. | Iron |
| B. | Calcium |
| C. | Phosphorus |
| D. | Magnesium |
| Answer» E. | |
| 172. |
Which of the following gases is lighter than air ? |
| A. | Oxygen |
| B. | Carbon dioxide |
| C. | Chlorine |
| D. | Ammonia |
| Answer» E. | |
| 173. |
In which type of rocks are metals like Gold and Copper mostly found ? |
| A. | Old sedimentary |
| B. | Old igneous |
| C. | New metamorphic |
| D. | Old metamorphic |
| Answer» C. New metamorphic | |
| 174. |
An air bubble in water will act like a - |
| A. | Concave lens |
| B. | Convex lens |
| C. | Convex mirror |
| D. | Concave mirror |
| Answer» C. Convex mirror | |
| 175. |
Cooking gas is a mixture of - |
| A. | Butane and propane |
| B. | Methane and ethylene |
| C. | Carbondioxide and oxygen |
| D. | Carbonmonoxide and carbondioxide |
| Answer» B. Methane and ethylene | |
| 176. |
Photosynthesis is? |
| A. | An neutral process |
| B. | A thermostatic process |
| C. | An exothermic process |
| D. | An endothermic process |
| Answer» E. | |
| 177. |
Enzymes are absent in? |
| A. | Bacteria |
| B. | Viruses |
| C. | Algae |
| D. | Fungi |
| Answer» C. Algae | |
| 178. |
Of the various forms of carbon, which one is used for absorption purpose ? |
| A. | Wood charcoal |
| B. | Diamond |
| C. | Graphite |
| D. | Coke |
| Answer» B. Diamond | |
| 179. |
Bats can fly in the dark, because - |
| A. | They have better vision in the dark |
| B. | The pupils of their eyes are very big |
| C. | They are guided by ultrasonic waves produced by them |
| D. | None of the above |
| Answer» D. None of the above | |
| 180. |
Which of the following is used for removing air bubbles from glass during its manufacture ? |
| A. | Soda ash |
| B. | Fledspar |
| C. | Arsenic oxide |
| D. | Potassium carbonate |
| Answer» D. Potassium carbonate | |
| 181. |
A mixture of salt and sand can be separated by? |
| A. | Gravity separation |
| B. | Sublimation |
| C. | Dry distillation |
| D. | Dissolving water |
| Answer» E. | |
| 182. |
Study of teeth is called |
| A. | Pedagogy |
| B. | Ornithology |
| C. | Orthoepy |
| D. | Odontology |
| Answer» E. | |
| 183. |
Which of the following parts of the sun is easily visible only during a total solar eclipse? |
| A. | Core |
| B. | Photosphere |
| C. | Sunspots |
| D. | Corona |
| Answer» E. | |
| 184. |
The power of a lens is measured in: |
| A. | Diopters |
| B. | Aeon |
| C. | Lumen |
| D. | Candela |
| Answer» B. Aeon | |
| 185. |
What does airbag, used for safety of car driver, contain? |
| A. | Sodium bicarbonate |
| B. | Sodium azide |
| C. | Sodium nitrite |
| D. | Sodium peroxide |
| Answer» C. Sodium nitrite | |
| 186. |
The weight of an object will be minimum when it is placed at? |
| A. | The north pole |
| B. | The south pole |
| C. | The equator |
| D. | The center of the earth |
| Answer» E. | |
| 187. |
The outermost layer of the sun is called |
| A. | Sodium |
| B. | Potassium |
| C. | Barium |
| D. | Mercury |
| Answer» D. Mercury | |
| 188. |
As you go down into a well, your weight |
| A. | Increases slightly |
| B. | Decreases slightly |
| C. | Remains exactly the same |
| D. | None of the above |
| Answer» C. Remains exactly the same | |
| 189. |
Which one of the following types of waves are used in a night vision apparatus? |
| A. | Radio waves |
| B. | Microwaves |
| C. | Infra-red waves |
| D. | None of the above |
| Answer» D. None of the above | |
| 190. |
The Mudumalai National Park is located in which state? |
| A. | Chattisgarh |
| B. | Haryana |
| C. | Tamil nadu |
| D. | Karnataka |
| Answer» D. Karnataka | |
| 191. |
Water soluble vitamin include |
| A. | Vitamin c |
| B. | Niacin |
| C. | Riboflavin |
| D. | All of the above |
| Answer» E. | |
| 192. |
Which among the following gas is most responsible for global warming? |
| A. | Nitrogen |
| B. | Methane |
| C. | Carbon di-oxide |
| D. | Carbon mono-oxide |
| Answer» D. Carbon mono-oxide | |
| 193. |
Which of the following is used as a moderator in nuclear reactor ? |
| A. | Radium |
| B. | Graphite |
| C. | Thorium |
| D. | Ordinary water |
| Answer» C. Thorium | |
| 194. |
Common salt is obtained from seawater by the process of - |
| A. | Filtration |
| B. | Evaporation |
| C. | Sublimation |
| D. | Crystalization |
| Answer» C. Sublimation | |
| 195. |
A super conductor is characterised by? |
| A. | Low permeability |
| B. | Infinite permeability |
| C. | Zero permeability |
| D. | High permeability |
| Answer» D. High permeability | |
| 196. |
In which following processes light energy is converted into chemical energy ? |
| A. | Fermentation |
| B. | Photorespiration |
| C. | Respiration |
| D. | Photosynthesis |
| Answer» E. | |
| 197. |
Isotopes are separated by? |
| A. | Sublimation |
| B. | Crystalization |
| C. | Filtration |
| D. | Distillation |
| Answer» E. | |
| 198. |
Fuse Wire is Made of? |
| A. | An alloy of tin and lead |
| B. | Nickel |
| C. | Copper |
| D. | An alloy of nickel and lead |
| Answer» B. Nickel | |
| 199. |
The man who is specialist in wine making is called as ? |
| A. | Wenologist |
| B. | Grapologist |
| C. | Oenologist |
| D. | None |
| Answer» D. None | |
| 200. |
Which of the following metals forms an amalgam with other metals ? |
| A. | Mercury |
| B. | Zinc |
| C. | Tin |
| D. | Lead |
| Answer» B. Zinc | |