438 MCQ Questions in english

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438 MCQ Questions in english हिन्दी

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

A. 1 cm

B. 10 micron

C. 1 angstrom

D. 1 m

297. There are mesons in

A. Gamma rays

B. Cosmic rays

C. Laser beam

D. X-rays

296. 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

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

A. Road mile

B. Navigation

C. Measuring the boundaries of a nation

D. Astronomy

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

A. Light waves

B. Ship

C. Aeroplane

D. Sound waves

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

A. Ordinary water

B. Thorium

C. Graphite

D. Radium

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

A. Cathode ray

B. Gamma ray

C. Alpha ray

D. Beta ray

291. Atoms are made up of:

A. Protons only

B. Electrons and Nuclei

C. Electrons and protons

D. Electrons only

290. The unit for bars is

A. Heat

B. Temperature

C. Current

D. Atmospheric pressure

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

A. Carbon

B. Oxygen

C. Helium

D. Hydrogen

288. Kilowatt is a measurement unit for:

A. Power

B. Work

C. Current

D. Electricity

287. Electric current can be detected using:

A. Ammeter

B. Commutator

C. Anemometer

D. Voltmeter

286. Using a chronometer, you can:

A. Water waves

B. Colour contrast

C. Sound waves

D. Time

285. A light year is a unit of

A. Stellar distances

B. Speed of rockets

C. Speed of aeroplanes

D. Speed of light

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

A. Pulsars

B. Atomic clocks

C. Quartz clocks

D. White dwarfs

283. How many miles are in one kilometre?

A. 1.6

B. 0.84

C. 0.62

D. 0.5

282. 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

281. Where did India's first one-day international cricket match take place?

A. Lords

B. Headingley

C. Taunton

D. The Oval

280. Equating one horse power to

A. 748 watts

B. 756 watts

C. 736 watts

D. 746 watts

279. 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

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

A. HTTP

B. FTP

C. STP

D. IP

277. 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

276. 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

275. 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

274. 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

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

A. Ctrl Disk

B. ATTRIB

C. F DISK

D. FORMAT

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

A. Magnetic Tapes

B. Compact Disk

C. Semiconductor Memories

D. Magnetic Disk

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

A. Register

B. Conductor

C. Capacitor

D. Flip-Flop

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