430 MCQ Questions in english

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430 MCQ Questions in english हिन्दी

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

A. 1 cm

B. 10 micron

C. 1 angstrom

D. 1 m

289. There are mesons in

A. Gamma rays

B. Cosmic rays

C. Laser beam

D. X-rays

288. 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

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

A. Road mile

B. Navigation

C. Measuring the boundaries of a nation

D. Astronomy

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

A. Light waves

B. Ship

C. Aeroplane

D. Sound waves

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

A. Ordinary water

B. Thorium

C. Graphite

D. Radium

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

A. Cathode ray

B. Gamma ray

C. Alpha ray

D. Beta ray

283. Atoms are made up of:

A. Protons only

B. Electrons and Nuclei

C. Electrons and protons

D. Electrons only

282. The unit for bars is

A. Heat

B. Temperature

C. Current

D. Atmospheric pressure

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

A. Carbon

B. Oxygen

C. Helium

D. Hydrogen

280. Kilowatt is a measurement unit for:

A. Power

B. Work

C. Current

D. Electricity

279. Using a chronometer, you can:

A. Water waves

B. Colour contrast

C. Sound waves

D. Time

278. A light year is a unit of

A. Stellar distances

B. Speed of rockets

C. Speed of aeroplanes

D. Speed of light

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

A. Pulsars

B. Atomic clocks

C. Quartz clocks

D. White dwarfs

276. How many miles are in one kilometre?

A. 1.6

B. 0.84

C. 0.62

D. 0.5

275. 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

274. Equating one horse power to

A. 748 watts

B. 756 watts

C. 736 watts

D. 746 watts

273. 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

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

A. HTTP

B. FTP

C. STP

D. IP

271. 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

270. 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

269. 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

268. 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

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

A. Ctrl Disk

B. ATTRIB

C. F DISK

D. FORMAT

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

A. Magnetic Tapes

B. Compact Disk

C. Semiconductor Memories

D. Magnetic Disk

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

A. Register

B. Conductor

C. Capacitor

D. Flip-Flop

264. The default extension for Excel files is:

A. .wki

B. .123

C. .xls

D. .xlw

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

A. Word

B. Word Prefect

C. Word Star

D. WordPad

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