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MCQOPTIONS
This section includes 6820 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 3151. |
Bile juice is secreted by |
| A. | RBC |
| B. | stomach |
| C. | intestine |
| D. | gall bladder |
| Answer» E. | |
| 3152. |
Which structure helps in transport of water in plants |
| A. | phloem |
| B. | leaf |
| C. | bark |
| D. | xylem |
| Answer» E. | |
| 3153. |
The organisms that can make their own food are called |
| A. | producers |
| B. | consumers |
| C. | secondary consumers |
| D. | decomposers |
| Answer» B. consumers | |
| 3154. |
Which is the bone that is present in forelimb |
| A. | radius |
| B. | femur |
| C. | ribs |
| D. | sternum |
| Answer» B. femur | |
| 3155. |
Which is the largest excretory organ of the body |
| A. | lungs |
| B. | skin |
| C. | liver |
| D. | none of these |
| Answer» C. liver | |
| 3156. |
Which one is herbivore |
| A. | cat |
| B. | dog |
| C. | cow |
| D. | lion |
| Answer» D. lion | |
| 3157. |
The brain is enclosed in a bony case called |
| A. | diaphragam |
| B. | vertebral column |
| C. | cranium |
| D. | vertebrae |
| Answer» D. vertebrae | |
| 3158. |
The Nobel prize in physics for the discovery of the law of photoelectric effect was awarded to |
| A. | Hahn |
| B. | Einstein |
| C. | Rontgen |
| D. | Rutherford |
| Answer» C. Rontgen | |
| 3159. |
The fact that universe is expanding was discovered by |
| A. | Hahn |
| B. | Hubble |
| C. | Rontgen |
| D. | Rutherford |
| Answer» C. Rontgen | |
| 3160. |
X-rays were discovered by |
| A. | Hahn |
| B. | Hubble |
| C. | Rontgen |
| D. | Rutherford |
| Answer» D. Rutherford | |
| 3161. |
Wind speed is measured by |
| A. | Anemometer |
| B. | Barometer |
| C. | Ceilometer |
| D. | Galvanometer |
| Answer» B. Barometer | |
| 3162. |
When gas is ionized, ________ forms. |
| A. | Molecule |
| B. | Element |
| C. | Plasma |
| D. | Current |
| Answer» D. Current | |
| 3163. |
The most abundant form of matter in the universe is |
| A. | Solid |
| B. | Liquid |
| C. | Gas |
| D. | Plasma |
| Answer» E. | |
| 3164. |
A loudspeaker changes ________ energy into sound energy. |
| A. | North pole |
| B. | Electrical |
| C. | Light |
| D. | Kinetic |
| Answer» C. Light | |
| 3165. |
The strongest part(s) of a magnet is/are |
| A. | Carnot |
| B. | South pole |
| C. | North and south pole |
| D. | Median of north and south pole |
| Answer» D. Median of north and south pole | |
| 3166. |
Wind is caused by |
| A. | Difference in atmospheric pressure |
| B. | Difference in atmospheric temperature |
| C. | Rotation of the Earth |
| D. | Revolution of the Earth |
| Answer» B. Difference in atmospheric temperature | |
| 3167. |
Which non-metallic element is liquid at room temperature? |
| A. | Bromine |
| B. | Flourine |
| C. | Chlorine |
| D. | Phosphorous |
| Answer» B. Flourine | |
| 3168. |
The horizontal rows of the periodic table are called |
| A. | Groups |
| B. | Periods |
| C. | Sets |
| D. | Matrices |
| Answer» C. Sets | |
| 3169. |
Battery charger converts electrical energy into ________ energy. |
| A. | Kinetic |
| B. | Potential |
| C. | Chemical |
| D. | Nuclear |
| Answer» D. Nuclear | |
| 3170. |
The vertical coloumns of the periodic table are called |
| A. | Groups |
| B. | Periods |
| C. | Sets |
| D. | Matrices |
| Answer» B. Periods | |
| 3171. |
Which from the following has the greatest penetrating power? |
| A. | Alpha |
| B. | Beta particles |
| C. | Gamma rays |
| D. | All three have same penetrating power |
| Answer» D. All three have same penetrating power | |
| 3172. |
Which from the following has the greatest speed? |
| A. | The land cools faster than the water in the sea |
| B. | Beta |
| C. | Gamma |
| D. | None |
| Answer» D. None | |
| 3173. |
The branch of science which study the interaction between matter and radian energy is called |
| A. | Thermochemistry |
| B. | Polymer chemistry |
| C. | Spectroscopy |
| D. | Electrochemistry |
| Answer» D. Electrochemistry | |
| 3174. |
Which from the following has the greatest ionising power? |
| A. | Alpha particles |
| B. | Beta particles |
| C. | Gamma rays |
| D. | All three has same ionising power |
| Answer» B. Beta particles | |
| 3175. |
The speed of sound is slowest in |
| A. | Solids |
| B. | Liquids |
| C. | Gasses |
| D. | Vaccum |
| Answer» D. Vaccum | |
| 3176. |
The SI unit of thermodynamic temperature is |
| A. | Celsius |
| B. | Fahrenheight |
| C. | Kelvin |
| D. | None of these |
| Answer» D. None of these | |
| 3177. |
The shortest distance between crest to crest is called |
| A. | Phare |
| B. | thoughs |
| C. | Amplitude |
| D. | Wavelength |
| Answer» E. | |
| 3178. |
The speed of sound is fastest in |
| A. | Solids |
| B. | Liquids |
| C. | Gasses |
| D. | Vaccum |
| Answer» B. Liquids | |
| 3179. |
All electromagnetic waves have the same |
| A. | Frequency |
| B. | Amplitude |
| C. | Wavelength in vaccum |
| D. | Speed in vaccum |
| Answer» E. | |
| 3180. |
Which electromagnetic wave has the shortest wavelength? |
| A. | Frequency |
| B. | X-rays |
| C. | Microwaves |
| D. | Radio waves |
| Answer» B. X-rays | |
| 3181. |
Which electromagnetic wave has the longest wavelength? |
| A. | Gamma rays |
| B. | X-rays |
| C. | Microwaves |
| D. | Radio waves |
| Answer» E. | |
| 3182. |
An instrument used to measure gas pressure is |
| A. | Ammeter |
| B. | Manometer |
| C. | Galvanometer |
| D. | Barometer |
| Answer» C. Galvanometer | |
| 3183. |
An instrument used to measure atmospheric pressure is |
| A. | Ammeter |
| B. | Manometer |
| C. | Galvanometer |
| D. | Barometer |
| Answer» E. | |
| 3184. |
The vernier calipers is used to measure |
| A. | Length |
| B. | Time |
| C. | Temperature |
| D. | Viscority |
| Answer» B. Time | |
| 3185. |
1 tonne = ________ kg |
| A. | 100 |
| B. | 400 |
| C. | 1000 |
| D. | 4000 |
| Answer» D. 4000 | |
| 3186. |
The anode is the electrode connected to the ________ terminal of a battery. |
| A. | Positive |
| B. | Negative |
| C. | Neutral |
| D. | Free |
| Answer» B. Negative | |
| 3187. |
Atomic clock is used to measure ________ intervals of time. |
| A. | Very short |
| B. | Short |
| C. | Very long |
| D. | Long |
| Answer» B. Short | |
| 3188. |
Molecules with identical molecular formulae but with different structural formulae are called |
| A. | Positive |
| B. | Isotopes |
| C. | Atomic number |
| D. | Mass number |
| Answer» C. Atomic number | |
| 3189. |
Ships use ________ to find the depth of the ocean beneath them. |
| A. | Pictches |
| B. | Echoes |
| C. | Frequencies |
| D. | None of these |
| Answer» C. Frequencies | |
| 3190. |
Earths troposphere extends from the Earths surface to an average height of about ________ km. |
| A. | 10 |
| B. | 12 |
| C. | 15 |
| D. | 17 |
| Answer» C. 15 | |
| 3191. |
The science of lightning is called |
| A. | Aerology |
| B. | Meteorology |
| C. | Electeorology |
| D. | Fulminology |
| Answer» E. | |
| 3192. |
The Earths internal heat mainly comes from |
| A. | Liquid hydrogen |
| B. | Chemical reactions |
| C. | Radioactive decay |
| D. | Molecular kinetic energy |
| Answer» D. Molecular kinetic energy | |
| 3193. |
On average, Air contains ________ % of water vapour. |
| A. | 1 |
| B. | 3 |
| C. | 5 |
| D. | 7 |
| Answer» B. 3 | |
| 3194. |
There are different reasons on the Earth because of |
| A. | Rotation of the Earth |
| B. | Revolution of the Earth |
| C. | The Earths axis is tilted |
| D. | The Earths distance from the Sun |
| Answer» D. The Earths distance from the Sun | |
| 3195. |
We live on the Earths |
| A. | Crust |
| B. | Outer core |
| C. | Crust |
| D. | Mantle |
| Answer» D. Mantle | |
| 3196. |
The thickest layer of the Earth is |
| A. | Crust |
| B. | Inner core |
| C. | Outer core |
| D. | Mantle |
| Answer» E. | |
| 3197. |
The ozone layer is at height of ________ kilometers from the surface of the Earth. |
| A. | 10 to 20 |
| B. | 20 to 30 |
| C. | 30 to 40 |
| D. | 40 to 50 |
| Answer» C. 30 to 40 | |
| 3198. |
The interior structure of the Earth is divided into ________ layers. |
| A. | 4 |
| B. | 5 |
| C. | 6 |
| D. | 7 |
| Answer» C. 6 | |
| 3199. |
The ozone layer was discovered by |
| A. | F.W. Aston and J.J Thomson |
| B. | Albert Einstein |
| C. | Rutherford |
| D. | Charles Fabry and Henri Buisson |
| Answer» E. | |
| 3200. |
The whole Earth can be covered by ________ geo-stationary satellites. |
| A. | 3 |
| B. | 4 |
| C. | 5 |
| D. | 6 |
| Answer» B. 4 | |