MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 2016 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 1151. |
Kilowatt-hour is the unit of : |
| A. | nergy |
| B. | ower |
| C. | orce |
| D. | omentum |
| Answer» B. ower | |
| 1152. |
The best conductor of electricity among the following is : |
| A. | opper |
| B. | ron |
| C. | luminium |
| D. | ilver |
| Answer» E. | |
| 1153. |
One Kilowatt hour is equal to - |
| A. | .6 Mega Joule |
| B. | .8 Mega Joule |
| C. | .2 Mega Joule |
| D. | .0 Mega Joule |
| Answer» B. .8 Mega Joule | |
| 1154. |
The metal used to make lightning conductors is |
| A. | ron |
| B. | luminium |
| C. | opper |
| D. | inc |
| Answer» D. inc | |
| 1155. |
The electric current in a metal wire is due to the flow of - |
| A. | lectrons |
| B. | rotons |
| C. | ons |
| D. | oles |
| Answer» B. rotons | |
| 1156. |
What is the value of 1 kW = ? |
| A. | 000 W |
| B. | 0 W |
| C. | 00 W |
| D. | 0000 W |
| Answer» B. 0 W | |
| 1157. |
Safety fuse wire used in domestic electrical appliances is made of metal of low |
| A. | esistance |
| B. | elting point |
| C. | pecific gravity |
| D. | onductance |
| Answer» C. pecific gravity | |
| 1158. |
The unit of electrical power is |
| A. | olt |
| B. | att |
| C. | ilowatt hour |
| D. | mpere |
| Answer» C. ilowatt hour | |
| 1159. |
Working of safety fuses depends upon1. magnetic effect of the current2. chemical effect of the current3. magnitude of the current4. heating effect of the currentSelect the correct answer using the code given below. |
| A. | , 2, 3 and 4 |
| B. | , 2 and 3 only |
| C. | and 4 only |
| D. | only |
| Answer» D. only | |
| 1160. |
The fuse in an electric circuit is connected in |
| A. | eries with neutral |
| B. | arallel to live |
| C. | arallel to neutral |
| D. | eries with live |
| Answer» E. | |
| 1161. |
When the main switch of the house is put off it disconnects the |
| A. | ive wire only |
| B. | ive wire and the earth wire |
| C. | ive wire and the neutral wire |
| D. | arth wire and the neutral wire |
| Answer» D. arth wire and the neutral wire | |
| 1162. |
A Fuse wire is characterised by |
| A. | igh resistance and low melting point |
| B. | igh resistance and high melting point |
| C. | ow resistance and high melting point |
| D. | ow resistance and low melting point |
| Answer» B. igh resistance and high melting point | |
| 1163. |
Which tube used to produce X-ray? |
| A. | oolidge tube |
| B. | -ray tube |
| C. | oentgen |
| D. | one of these |
| Answer» B. -ray tube | |
| 1164. |
A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ . |
| A. | ravitational force between train and man |
| B. | llusion of the man |
| C. | he centripetal force |
| D. | ressure difference due to fast moving air in between |
| Answer» E. | |
| 1165. |
The force exerted by a magnet is an example of ________ |
| A. | on-contact force |
| B. | uscular force |
| C. | ontact force |
| D. | lectrostatic force |
| Answer» B. uscular force | |
| 1166. |
To open a door easily, the handle should be fixed |
| A. | ear the hinges |
| B. | way from mid-point opposite to hinges |
| C. | n the middle |
| D. | one of these |
| Answer» E. | |
| 1167. |
It is difficult to cook rice |
| A. | t the top of a mountain |
| B. | t the sea level |
| C. | nder a mine |
| D. | ame anywhere |
| Answer» B. t the sea level | |
| 1168. |
The spokes used in the wheel of a bicycle increase its |
| A. | oment of inertia |
| B. | elocity |
| C. | cceleration |
| D. | omentum |
| Answer» B. elocity | |
| 1169. |
It is easy to burst a gas-filled balloon with a needle than with a nail. It is because |
| A. | ail is more longer than needle. |
| B. | ail exerts more pressure than needle on the balloon. |
| C. | eedle exerts more pressure than nail on the balloon. |
| D. | as is reactive with the needle. |
| Answer» D. as is reactive with the needle. | |
| 1170. |
The wall of a dam is broader at the base |
| A. | ecause streamlining is required |
| B. | o withstand pressure that increases with depth |
| C. | o withstand pressure that increases in a horizontal plane |
| D. | o withstand pressure that is increased with atmospheric pressure |
| Answer» C. o withstand pressure that increases in a horizontal plane | |
| 1171. |
The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall |
| A. | epends on the thickness of the wall |
| B. | ncreases with height of the wall |
| C. | ncreases with depth of the wall |
| D. | epends on the area of the wall |
| Answer» D. epends on the area of the wall | |
| 1172. |
When pressure is increased the melting point of ice |
| A. | ncreases |
| B. | oes not change |
| C. | ecreases |
| D. | epends on the impurities in the ice |
| Answer» D. epends on the impurities in the ice | |
| 1173. |
Instrument used to measure the force and velocity of the wind is |
| A. | mmeter |
| B. | nemometer |
| C. | ltimeter |
| D. | udiometer |
| Answer» C. ltimeter | |
| 1174. |
Contact force is another name for ________ |
| A. | riction |
| B. | agnetic force |
| C. | lectrostatic force |
| D. | uscular force |
| Answer» E. | |
| 1175. |
At boiling point of liquids, its |
| A. | emperature increases |
| B. | tmospheric pressure increases |
| C. | emperature remains constant |
| D. | apour pressure decreases |
| Answer» D. apour pressure decreases | |
| 1176. |
The boiling point of water decreases at higher altitudes is due to |
| A. | ow temperature |
| B. | ow atmospheric pressure |
| C. | igh temprature |
| D. | igh atmospheric pressure |
| Answer» C. igh temprature | |
| 1177. |
In which of the following processes is energy released ? |
| A. | espiration |
| B. | hotosynthesis |
| C. | ngestion |
| D. | bsorption |
| Answer» B. hotosynthesis | |
| 1178. |
Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?I.DiffusionII.RefractionIII.Internal reflection |
| A. | , II and III |
| B. | and II |
| C. | I and III |
| D. | and III |
| Answer» D. and III | |
| 1179. |
Tesla is a unit of magnetic : |
| A. | lux |
| B. | nduction |
| C. | oment |
| D. | ield |
| Answer» E. | |
| 1180. |
Curie point is the temperature at which |
| A. | atter becomes radioactive |
| B. | metal loses magnetic properties. |
| C. | metal loses conductivity |
| D. | ransmutation of metal occurs. |
| Answer» C. metal loses conductivity | |
| 1181. |
Magnetic keepers are pieces of |
| A. | ickel |
| B. | obalt |
| C. | teel |
| D. | oft iron |
| Answer» E. | |
| 1182. |
The method of magnetisation is: |
| A. | ammering a magnet |
| B. | eating a magnet |
| C. | assing direct current through it |
| D. | assing alternating current through it |
| Answer» B. eating a magnet | |
| 1183. |
In the process of magnetisation of a bar |
| A. | he entire bulk of the bar gets magnetised |
| B. | nly the surface of the bar gets magnetised |
| C. | nly the ends of the bar get magnetised |
| D. | nly some parts of the outer layers of the bar get magnetised |
| Answer» B. nly the surface of the bar gets magnetised | |
| 1184. |
Which of the following group of elements are diamagnetic? |
| A. | rgon, copper, silver |
| B. | ydrogen, argon, copper |
| C. | xygen, copper, silver |
| D. | ydrogen, oxygen, Argon |
| Answer» B. ydrogen, argon, copper | |
| 1185. |
On which of the following techniques photostate machine works ? |
| A. | agnetic Image—Making |
| B. | hermal Image—Making |
| C. | lectrostatic Image—Making |
| D. | lectromagnetic Image— Making |
| Answer» D. lectromagnetic Image— Making | |
| 1186. |
A photostat machine works on |
| A. | lectromagnetic image making |
| B. | lectrostatic image making |
| C. | agnetic image making |
| D. | hermal image making |
| Answer» C. agnetic image making | |
| 1187. |
Which of the following circuit elements is used to ''block" DC in an electronic circuit ? |
| A. | esistances |
| B. | apacitance |
| C. | nductance |
| D. | iode |
| Answer» C. nductance | |
| 1188. |
Tape recorder should not be kept near one of the following things : |
| A. | lock |
| B. | agnet |
| C. | lectrical switchboard |
| D. | adio |
| Answer» C. lectrical switchboard | |
| 1189. |
In MRI machine, which one of the following is used? |
| A. | ound wave |
| B. | -ray |
| C. | ltra-sound wave |
| D. | agnetic wave |
| Answer» E. | |
| 1190. |
In the absence of ozone layer, which rays will enter into atmosphere? |
| A. | nfrared |
| B. | isible |
| C. | ltraviolet |
| D. | -rays |
| Answer» D. -rays | |
| 1191. |
X-rays region lies between |
| A. | ltraviolet and visible region |
| B. | isible and infra-red region |
| C. | amma-rays and ultraviolet region |
| D. | hort radio waves and long radio waves |
| Answer» D. hort radio waves and long radio waves | |
| 1192. |
X–rays are |
| A. | ositively charged particles |
| B. | egatively charged particles |
| C. | eutral particles |
| D. | one of these |
| Answer» D. one of these | |
| 1193. |
Which of the following is not true about X-rays? |
| A. | ave low penetrating power |
| B. | ravel with the speed of light |
| C. | an be reflected or refracted |
| D. | an affect photographic plates |
| Answer» B. ravel with the speed of light | |
| 1194. |
Where are mesons found ? |
| A. | osmic rays |
| B. | -rays |
| C. | amma rays |
| D. | aser beam |
| Answer» B. -rays | |
| 1195. |
Which layer of the earth's atmosphere reflect back the radio waves to the earth's surface ? |
| A. | onosphere |
| B. | tratosphere |
| C. | esosphere |
| D. | xosphere |
| Answer» B. tratosphere | |
| 1196. |
What is the wavelength of visible spectrum ? |
| A. | 300 A°–3000 A° |
| B. | 900 A° – 7600 A° |
| C. | 800 A° – 8000 A° |
| D. | 500 A° – 9800 A° |
| Answer» C. 800 A° – 8000 A° | |
| 1197. |
Energy of Ultraviolet rays is great than |
| A. | nfrared rays |
| B. | amma rays |
| C. | -rays |
| D. | osmic rays |
| Answer» B. amma rays | |
| 1198. |
In the atmosphere ultraviolet rays are absorbed by |
| A. | xygen |
| B. | itrogen |
| C. | zone |
| D. | elium |
| Answer» B. itrogen | |
| 1199. |
Which of the following parts of the sunlight makes the solar cooker hot ? |
| A. | ltra violet |
| B. | ed light |
| C. | nfra red |
| D. | osmic rays |
| Answer» D. osmic rays | |
| 1200. |
Which one among the following is not an electromagnetic wave? |
| A. | -Ray |
| B. | -Ray |
| C. | athode Ray |
| D. | nfrared Ray |
| Answer» D. nfrared Ray | |