MCQOPTIONS
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MCQOPTIONS
This section includes 179 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
The average salinity of sea water is? |
| A. | 3% |
| B. | 3.5% |
| C. | 2.5% |
| D. | 2% |
| Answer» C. 2.5% | |
| 152. |
Which of the following metals forms an amalgam with other metals?? |
| A. | Tin |
| B. | Mercury |
| C. | Lead |
| D. | Zinc |
| Answer» C. Lead | |
| 153. |
Which of the gas is not known as green house gas?? |
| A. | Methane |
| B. | Nitrous oxide |
| C. | Carbon dioxide |
| D. | Hydrogen |
| Answer» E. | |
| 154. |
Air is a/an:? |
| A. | Compound |
| B. | Element |
| C. | Electrolyte |
| D. | Mixture |
| Answer» E. | |
| 155. |
Air is a/an: |
| A. | Compound |
| B. | Element |
| C. | Electrolyte |
| D. | Mixture |
| Answer» E. | |
| 156. |
Diamond is an allotropic form of: |
| A. | Germanium |
| B. | Carbon |
| C. | Silicon |
| D. | Sulphur |
| Answer» C. Silicon | |
| 157. |
Reading of a barometer going down is an indication of |
| A. | Snow |
| B. | Storm |
| C. | Intense heat |
| D. | Rainfall |
| Answer» E. | |
| 158. |
'Bar' is the unit of |
| A. | Temperature |
| B. | Heat |
| C. | Atmospheric pressure |
| D. | Current |
| Answer» D. Current | |
| 159. |
The vast resources of unutilised natural gas can be used in the production of |
| A. | Graphite |
| B. | Synthetic petroleum |
| C. | Fertilisers |
| D. | Carbide |
| Answer» D. Carbide | |
| 160. |
What are the soaps? |
| A. | Salts of silicates |
| B. | Mixture of glycerol and alcohols |
| C. | Sodium or potassium salts of heavier fatty acids |
| D. | Esters of heavy fatty acids |
| Answer» D. Esters of heavy fatty acids | |
| 161. |
Noise or Noise pollution measured in: |
| A. | Phon |
| B. | Deci |
| C. | Decibel |
| D. | Decimal |
| Answer» D. Decimal | |
| 162. |
Which one of the following is the petroleum wax? |
| A. | Paraffin wax |
| B. | Jonoba wax |
| C. | Carnauba wax |
| D. | Bees wax |
| Answer» B. Jonoba wax | |
| 163. |
Which type of fire extinguisher is used for petroleum fire? |
| A. | Powder type |
| B. | Liquid type |
| C. | Soda acid type |
| D. | Foam type |
| Answer» B. Liquid type | |
| 164. |
Atoms of an element differ from those of all other elements in |
| A. | Atomic number and electronic configuration. |
| B. | Number of neutrons and number of valence electrons. |
| C. | Atomic number and number of valence electrons. |
| D. | Number of neutrons and electronic configuration. |
| Answer» E. | |
| 165. |
Which of the following is a protein? |
| A. | Natural rubber |
| B. | Starch |
| C. | Cellulose |
| D. | None of these |
| Answer» B. Starch | |
| 166. |
In an atomic explosion, enormous energy is released which is due to |
| A. | Conversion of chemical energy into heat energy |
| B. | Conversion of mechanical energy into nuclear energy |
| C. | Conversion of mass into energy |
| D. | Conversion of neutrons into protons |
| Answer» D. Conversion of neutrons into protons | |
| 167. |
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 | |
| 168. |
Who suggested that most of the mass of the atom is located in the nucleus? |
| A. | Thompson |
| B. | Bohr |
| C. | Rutherford |
| D. | Einstein |
| Answer» D. Einstein | |
| 169. |
Which of the following shows the masses of the three elementary particles in decreasing order? |
| A. | Leptons, Baryons, Mesons |
| B. | Mesons, Baryons, Leptons |
| C. | Baryons, Mesons, Leptons |
| D. | Leptons, Mesons Baryons |
| Answer» D. Leptons, Mesons Baryons | |
| 170. |
The tree sends down roots from its branches to the soil is know as: |
| A. | Oak |
| B. | Pine |
| C. | Banyan |
| D. | Palm |
| Answer» D. Palm | |
| 171. |
Light year is a measurement of |
| A. | Speed of aeroplanes |
| B. | Speed of light |
| C. | Stellar distances |
| D. | Speed of rockets |
| Answer» D. Speed of rockets | |
| 172. |
The most important ore of aluminum is |
| A. | Galena |
| B. | Calamine |
| C. | Calcite |
| D. | Bauxite |
| Answer» E. | |
| 173. |
The group of metals Fe, Co, Ni may best called as: |
| A. | Transition metals |
| B. | Main group metals |
| C. | Alkali metals |
| D. | Rare metals |
| Answer» B. Main group metals | |
| 174. |
Tetraethyl lead is used as |
| A. | Pain Killer |
| B. | Fire Extinguisher |
| C. | Mosquito Repellent |
| D. | Petrol Additive |
| Answer» E. | |
| 175. |
Which of the following is used in pencils? |
| A. | Graphite |
| B. | Silicon |
| C. | Charcoal |
| D. | Phosphorous |
| Answer» B. Silicon | |
| 176. |
Quartz crystals normally used in quartz clocks etc. is chemically |
| A. | Silicon Dioxide |
| B. | Germanium Oxide |
| C. | A mixture of Germanium Oxide and Silicon dioxide |
| D. | Sodium Silicate |
| Answer» B. Germanium Oxide | |
| 177. |
LPG consists of mainly: |
| A. | Methane, Ethane and Hexane |
| B. | Ethane, Hexane and Nonane |
| C. | Methane, Hexane and Nonane |
| D. | Methane, Butane and Propane |
| Answer» E. | |
| 178. |
What is the unit for measuring the amplitude of a sound? |
| A. | Decibel |
| B. | Coulomb |
| C. | Hum |
| D. | Cycles |
| Answer» B. Coulomb | |
| 179. |
Amalgams are: |
| A. | Highly coloured alloys |
| B. | Alloys which contain mercury as one of the contents |
| C. | Alloys which have great resistance to abrasion |
| D. | Alloys which contain carbon |
| Answer» C. Alloys which have great resistance to abrasion | |