MCQOPTIONS
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MCQOPTIONS
This section includes 467 Mcqs, each offering curated multiple-choice questions to sharpen your Railways knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
The disks stores information in |
| A. | Tables |
| B. | Rows and columns |
| C. | Blocks |
| D. | Tracks and sectors |
| Answer» E. | |
| 202. |
Restarting a computer that is already on is referred to as |
| A. | shut down |
| B. | cold booting |
| C. | warm booting |
| D. | logging off |
| Answer» E. | |
| 203. |
____ are software which is used to do particular task. |
| A. | Operating system |
| B. | Program |
| C. | Data |
| D. | Software |
| Answer» C. Data | |
| 204. |
A pixel is |
| A. | a computer program that draws picture |
| B. | a picture stored in the secondary memory |
| C. | the smallest resolvable part of a picture |
| D. | a virus |
| Answer» D. a virus | |
| 205. |
Android is ____ |
| A. | Operating system |
| B. | Application |
| C. | Interface |
| D. | Software |
| Answer» B. Application | |
| 206. |
Which of the following not a software? |
| A. | excel |
| B. | operating system |
| C. | printer driver |
| D. | central processing unit (CPU) |
| Answer» E. | |
| 207. |
A ......... is an electronic device that process data, converting it into information. |
| A. | computer |
| B. | processor |
| C. | case |
| D. | stylus |
| Answer» C. case | |
| 208. |
On a CD ? RW you can |
| A. | read and write information |
| B. | only read information |
| C. | only write information |
| D. | read, write and rewrite information |
| Answer» E. | |
| 209. |
A DVD is an example of a(n) |
| A. | hard disk |
| B. | optical disc |
| C. | output device |
| D. | solid-state storage device |
| Answer» C. output device | |
| 210. |
Reusable optical storage will typically have the acronym |
| A. | CD |
| B. | DVD |
| C. | ROM |
| D. | RW |
| Answer» E. | |
| 211. |
The physical components of a computer system. |
| A. | Software |
| B. | Hardware |
| C. | ALU |
| D. | Control Unit |
| Answer» C. ALU | |
| 212. |
Which of the following is needed for sound recording? |
| A. | Speaker |
| B. | Microphone |
| C. | Talker |
| D. | Mouse |
| Answer» C. Talker | |
| 213. |
Which of the following refers to the fastest, biggest and most expensive computers? |
| A. | Personal Computers |
| B. | Supercomputers |
| C. | Laptops |
| D. | Notebooks |
| Answer» C. Laptops | |
| 214. |
Which of the following is part of the System Unit? |
| A. | Monitor |
| B. | CPU |
| C. | CD ? ROM |
| D. | Floppy Disk |
| Answer» C. CD ? ROM | |
| 215. |
Holding the mouse button down while moving an object of text is known as - |
| A. | moving |
| B. | dragging |
| C. | dropping |
| D. | highlighting |
| Answer» C. dropping | |
| 216. |
Scanner scans |
| A. | Picture |
| B. | Text |
| C. | Both Picture and Text |
| D. | Neither Picture Nor Text |
| Answer» D. Neither Picture Nor Text | |
| 217. |
General purpose computer are used for |
| A. | Accounting |
| B. | Creating a small database |
| C. | Performs calculation |
| D. | All of the above |
| Answer» E. | |
| 218. |
Which of the following refers to the fastest, biggest and most, expensive computers? |
| A. | Notebooks |
| B. | Personal computers |
| C. | Laptops |
| D. | Supercomputers |
| Answer» E. | |
| 219. |
JPEG stands for - |
| A. | Joint Photographic Expert group |
| B. | Joint Photographic Expert graphics |
| C. | Join Photographic Expert group |
| D. | Join Photographic Expert graphics |
| Answer» B. Joint Photographic Expert graphics | |
| 220. |
Which function key is used to refresh the current window? |
| A. | F1 |
| B. | F5 |
| C. | F3 |
| D. | F6 |
| Answer» C. F3 | |
| 221. |
BCC in the Email refer to |
| A. | Blind Carbon Copy |
| B. | Black Carbon Copy |
| C. | Blank Carbon Copy |
| D. | Blue Carbon Copy |
| Answer» B. Black Carbon Copy | |
| 222. |
Integrated Chips or IC's were started to be in use from which generation of Computers? |
| A. | 1st Generation |
| B. | 2nd Generation |
| C. | 3rd Generation |
| D. | 4th Generation |
| Answer» D. 4th Generation | |
| 223. |
How many generation s of computers we have? |
| A. | 6 |
| B. | 7 |
| C. | 5 |
| D. | 4 |
| Answer» D. 4 | |
| 224. |
When a ____is deleted, the original application, folder, or file is not deleted. |
| A. | Option |
| B. | Task |
| C. | Shortcut |
| D. | Suite |
| Answer» D. Suite | |
| 225. |
The basic goal of computer process is to convert data into |
| A. | files |
| B. | tables |
| C. | information |
| D. | graphs |
| Answer» E. | |
| 226. |
Which of the following are computers that can be carried around easily? |
| A. | Minicomputers |
| B. | Supercomputers |
| C. | PCs |
| D. | Laptops |
| Answer» E. | |
| 227. |
4200 J of work is required for |
| A. | increasing the temperature of 10 g of water through \[10{}^\circ C\] |
| B. | increasing the temperature of 100 g of water through \[10{}^\circ C\] |
| C. | increasing the temperature of 1 kg of water through \[10{}^\circ C\] |
| D. | increasing the temperature of 10 g of water through \[10{}^\circ C\] |
| Answer» C. increasing the temperature of 1 kg of water through \[10{}^\circ C\] | |
| 228. |
A polished silvery surface is |
| A. | A polished silvery surface is |
| B. | good reflector of heat |
| C. | poor reflector of heat |
| D. | None of these |
| Answer» C. poor reflector of heat | |
| 229. |
Higher the temperature of the body ____ is the kinetic energy of the molecules of that body? |
| A. | higher |
| B. | lower |
| C. | same |
| D. | none of these |
| Answer» B. lower | |
| 230. |
An iron ball at \[40{}^\circ C\] is dropped in a mug containing water at \[40{}^\circ C\] The heat will |
| A. | flow from iron ball to water. |
| B. | not flow from iron ball to water or from water to iron ball. |
| C. | flow from water to iron ball. |
| D. | increase the temperature of both. |
| Answer» C. flow from water to iron ball. | |
| 231. |
One litre of water at \[30{}^\circ C\] is mixed with one litre of water a\[50{}^\circ C\]. The temperature of the mixture will be |
| A. | \[80{}^\circ C\] |
| B. | more than \[50{}^\circ C\] but less than \[80{}^\circ C\] |
| C. | \[20{}^\circ C\] |
| D. | between\[30{}^\circ C\] and \[50{}^\circ C\] |
| Answer» E. | |
| 232. |
The form of energy that flows from a hot object to a cold object is called ____ |
| A. | Temperature |
| B. | Thermometer |
| C. | Heat |
| D. | Light |
| Answer» D. Light | |
| 233. |
Heat capacity of a substance is equal to |
| A. | amount of heat required to raise temperature of a 11% of a substance by 1 K |
| B. | amount of heat required to raise temperature of a substance by 1 K |
| C. | amount of heat required to change phase of a substance from solid to liquid without any change in temperature |
| D. | amount of heat required to change phase of a substance from liquid to gas without any change in temperature |
| Answer» C. amount of heat required to change phase of a substance from solid to liquid without any change in temperature | |
| 234. |
Heat applied to a piece of metal will cause |
| A. | increase in its mass |
| B. | increase in its volume |
| C. | increase in its density |
| D. | increase in its internal energy |
| Answer» E. | |
| 235. |
Heat capacity of a substance is defined as |
| A. | amount of heat required to raise temperature of a substance by 1 K |
| B. | amount of heat required to raise temperature of a substance by \[1{}^\circ C\] |
| C. | specific heat capacity x mass of substance |
| D. | All of above |
| Answer» E. | |
| 236. |
Heat capacity of a substance is |
| A. | inversely proportional to change in temperature |
| B. | directly proportional to change in temperature |
| C. | inversely proportional to square of change in temperature |
| D. | independent of change in temperature |
| Answer» B. directly proportional to change in temperature | |
| 237. |
Boiling point of mercury is equal to 630 K This temperature in Celsius is equal to |
| A. | \[357{}^\circ \] |
| B. | \[630{}^\circ \] |
| C. | \[903{}^\circ \] |
| D. | None of above |
| Answer» B. \[630{}^\circ \] | |
| 238. |
Temperature of core of earth is equal to\[3727{}^\circ C\]. This temperature in Kelvins is equal to |
| A. | 4000 K |
| B. | 3727 K |
| C. | 3454 K |
| D. | None of above |
| Answer» B. 3727 K | |
| 239. |
Absolute zero on Kelvin scale is equal to |
| A. | 373 K |
| B. | 273 K |
| C. | 0 K |
| D. | None of above |
| Answer» D. None of above | |
| 240. |
The water is poor conductors of heat so do not heated by: |
| A. | absorption |
| B. | conduction |
| C. | radiation |
| D. | convection |
| Answer» C. radiation | |
| 241. |
Clothes of____ colours absorb heat better than clothes of____ colours. |
| A. | light, dark |
| B. | dark, light |
| C. | soft, dark |
| D. | none of the above |
| Answer» C. soft, dark | |
| 242. |
An iron ball at \[40{}^\circ C\] is dropped in a mug containing water at \[40{}^\circ C\]. The heat will ____ |
| A. | not flow from iron ball to water or from water to iron ball |
| B. | flow from iron ball to water |
| C. | flow from water to iron ball |
| D. | none of the above |
| Answer» B. flow from iron ball to water | |
| 243. |
Why conduction is only possible in solids: |
| A. | particles of solids are closely packed |
| B. | heat is transferred from the hotter end to the colder end of an object |
| C. | heat is transferred from the colder end to the hotter end of an object |
| D. | both [a] and [b] |
| Answer» E. | |
| 244. |
A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of____ |
| A. | Convection |
| B. | Conduction |
| C. | Absorption |
| D. | Radiation |
| Answer» C. Absorption | |
| 245. |
Choose the correct equation for inter conversion of temperature scales. |
| A. | \[\frac{{{T}_{C}}-0}{100}=\frac{{{T}_{F}}-32}{180}\] |
| B. | \[\frac{{{T}_{F}}-32}{180}=\frac{{{T}_{K}}+273.15}{100}\] |
| C. | \[\frac{{{T}_{F}}-32}{180}=\frac{{{T}_{K}}-273.15}{180}\] |
| D. | \[\frac{{{T}_{C}}-0}{180}=\frac{{{T}_{F}}-32}{100}\] |
| Answer» B. \[\frac{{{T}_{F}}-32}{180}=\frac{{{T}_{K}}+273.15}{100}\] | |
| 246. |
At what factor heat absorbed on radiation by body depends on? |
| A. | distance between body |
| B. | source of heat |
| C. | its colour |
| D. | All the above |
| Answer» E. | |
| 247. |
It is the process of heat transfer from a hot body to a colder body without heating the space between the two is called as: |
| A. | Conduction |
| B. | Radiation |
| C. | concoction point |
| D. | absorption |
| Answer» C. concoction point | |
| 248. |
The temperature at which liquid changes into vapour is called as: |
| A. | melting point |
| B. | boiling point |
| C. | expansion point |
| D. | expansion point |
| Answer» C. expansion point | |
| 249. |
Heat bring ____ change |
| A. | physical |
| B. | chemical |
| C. | reversible |
| D. | periodic |
| Answer» C. reversible | |
| 250. |
Heat capacity depends on |
| A. | change in temperature |
| B. | Mass of body |
| C. | Nature of substance |
| D. | All the above |
| Answer» E. | |