480 MCQ Questions in english

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480 MCQ Questions in english हिन्दी

284. What separates isotopes is:

A. Sublimation

B. Crystallisation

C. Filtration

D. Distillation

283. X-rays have a wavelength in the range of

A. 1 cm

B. 10 micron

C. 1 angstrom

D. 1 m

282. There are mesons in

A. Gamma rays

B. Cosmic rays

C. Laser beam

D. X-rays

281. Which radioactive contaminant recently caught the attention of the public because it was found in construction materials?

A. Radium

B. Thorium

C. Radan

D. Plutonium

280. Using the nautical mile as a unit of measurement,

A. Road mile

B. Navigation

C. Measuring the boundaries of a nation

D. Astronomy

279. Which of the following is a unit of speed known as a knot?

A. Light waves

B. Ship

C. Aeroplane

D. Sound waves

278. Which of the following is utilised in nuclear reactors as a moderator?

A. Ordinary water

B. Thorium

C. Graphite

D. Radium

277. Which of the following is a radioactive element's positively charged particle?

A. Cathode ray

B. Gamma ray

C. Alpha ray

D. Beta ray

276. Atoms are made up of:

A. Protons only

B. Electrons and Nuclei

C. Electrons and protons

D. Electrons only

275. The unit for bars is

A. Heat

B. Temperature

C. Current

D. Atmospheric pressure

274. Which of the following gases undergoes decrease during the process?

A. Carbon

B. Oxygen

C. Helium

D. Hydrogen

273. Kilowatt is a measurement unit for:

A. Power

B. Work

C. Current

D. Electricity

272. Using a chronometer, you can:

A. Water waves

B. Colour contrast

C. Sound waves

D. Time

271. Accurate measurements of very brief time periods are made via

A. Pulsars

B. Atomic clocks

C. Quartz clocks

D. White dwarfs

270. How many miles are in one kilometre?

A. 1.6

B. 0.84

C. 0.62

D. 0.5

269. Kilohertz is a frequency measurement unit.

A. Electromagnetic radio wave frequencies

B. Voltage

C. Electric resistance

D. Power used by a current of one ampere

268. Equating one horse power to

A. 748 watts

B. 756 watts

C. 736 watts

D. 746 watts

267. What exactly does EPROM stand for?

A. Electric Programmable Read Only Memory (B) Erasable Programmable Read Only Memory

B. Erasable Programmable Read Only Memory

C. Evaluable Philotic Random Optic Memory

D. Every Person Requires One Mind

266. Which of the following is not an Internet protocol?

A. HTTP

B. FTP

C. STP

D. IP

265. Google (www.google.com) is a type of:

A. Search Engine

B. Number in Math

C. Directory of images

D. Chat service on the web

264. How does one get a computer virus?

A. Sending e-mail messages

B. Using a laptop during the winter

C. Opening e-mail attachments

D. Shopping on-line

263. What do you call a network computer that requests files from another computer?

A. A client

B. A host

C. A router

D. A web server

262. FORMAT Command:

A. Format should be left to the engineers to use

B. Formats a disk to receive files

C. Formats the CPU

D. Formats floppy drives only

261. What command should I use to recreate the disc tracks?

A. Ctrl Disk

B. ATTRIB

C. F DISK

D. FORMAT

260. Which of the following memory devices has the lowest cost per bit?

A. Magnetic Tapes

B. Compact Disk

C. Semiconductor Memories

D. Magnetic Disk

259. Is it possible to store a single binary bit in a computer?

A. Register

B. Conductor

C. Capacitor

D. Flip-Flop

258. The default extension for Excel files is:

A. .wki

B. .123

C. .xls

D. .xlw

257. Which of the following is the MS-Office word processor?

A. Word

B. Word Prefect

C. Word Star

D. WordPad

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