science & technology Online Quiz - 11

Description: science & technology Online Quiz - 11
Number of Questions: 20
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Tags: science & technology
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Fathom is the unit of

  1. sound

  2. depth

  3. frequency

  4. distance


Correct Option: B

Light year is a measurement of

  1. speed of aeroplanes

  2. speed of light

  3. Stellar distances

  4. speed of rockets


Correct Option: C

Very small time intervals are accurately measure by

  1. White dwarfs

  2. Quartz clocks

  3. Atomic clocks

  4. Pulsars


Correct Option: C

One kilometre is equal to how many miles?

  1. 0.84

  2. 0.5

  3. 1.6

  4. 0.62


Correct Option: D

kilohertz is a unit which measures

  1. power used by a current of one ampere

  2. electromagnetic radio wave frequencies

  3. voltage

  4. electric resistance


Correct Option: B

One horse power is equal to

  1. 746 watts

  2. 748 watts

  3. 756 watts

  4. 736 watts


Correct Option: A

In which decade was the AIEE (now the IEEE) founded?

  1. 1850s

  2. 1880s

  3. 1930s

  4. 1950s


Correct Option: B

What is part of a database that holds only one type of information?

  1. Report

  2. Field

  3. Record

  4. File


Correct Option: B

'OS' computer abbreviation usually means ?

  1. Order of Significance

  2. Open Software

  3. Operating System

  4. Optical Sensor


Correct Option: C

AI Explanation

To answer this question, you need to understand computer abbreviations.

Option A) Order of Significance - This option is incorrect because in the context of computers, the abbreviation 'OS' does not refer to the order of significance.

Option B) Open Software - This option is incorrect because although 'OS' can be associated with open-source software, it is not the most common or widely known abbreviation for open software.

Option C) Operating System - This option is correct. In the context of computers, 'OS' typically refers to the abbreviation for "Operating System." An operating system is a software that manages computer hardware and software resources and provides common services for computer programs.

Option D) Optical Sensor - This option is incorrect because 'OS' is not a commonly used abbreviation for optical sensor.

The correct answer is C) Operating System. This option is correct because 'OS' typically stands for Operating System in the context of computers.

In which decade with the first transatlantic radio broadcast occur?

  1. 1850s

  2. 1860s

  3. 1870s

  4. 1900s


Correct Option: D

AI Explanation

To answer this question, we need to understand when the first transatlantic radio broadcast occurred.

Option A) 1850s - This option is incorrect because the first transatlantic radio broadcast did not occur in the 1850s. During this time, radio technology was not yet developed enough for transatlantic communication.

Option B) 1860s - This option is incorrect because the first transatlantic radio broadcast did not occur in the 1860s. Radio technology was still in its early stages of development during this decade.

Option C) 1870s - This option is incorrect because the first transatlantic radio broadcast did not occur in the 1870s. While there were advancements in telegraphy during this time, transatlantic radio communication was not yet achieved.

Option D) 1900s - This option is correct because the first transatlantic radio broadcast occurred in the 1900s. Specifically, the first transatlantic radio transmission took place on December 12, 1901, when Guglielmo Marconi successfully transmitted a radio signal across the Atlantic Ocean from Poldhu, Cornwall, in England to St. John's, Newfoundland, in Canada.

The correct answer is D. The first transatlantic radio broadcast occurred in the 1900s.

'.MOV' extension refers usually to what kind of file?

  1. Image file

  2. Animation/movie file

  3. Audio file

  4. MS Office document


Correct Option: B

In which decade was the SPICE simulator introduced?

  1. 1950s

  2. 1960s

  3. 1970s

  4. 1980s


Correct Option: C

Most modern TV's draw power even if turned off. The circuit the power is used in does what function?

  1. Sound

  2. Remote control

  3. Color balance

  4. High voltage


Correct Option: B

Most modern TV's draw power even if turned off. The circuit the power is used in does what function?

  1. Sound

  2. Remote control

  3. Color balance

  4. High voltage


Correct Option: B

Which is a type of Electrically-Erasable Programmable Read-Only Memory?

  1. Flash

  2. Flange

  3. Fury

  4. FRAM


Correct Option: A

The purpose of choke in tube light is ?

  1. To decrease the current

  2. To increase the current

  3. To decrease the voltage momentarily

  4. To increase the voltage momentarily


Correct Option: D

'.MPG' extension refers usually to what kind of file?

  1. WordPerfect Document file

  2. MS Office document

  3. Animation/movie file

  4. Image file


Correct Option: C

The most abundant rare gas in the atmosphere is

  1. He

  2. Ne

  3. Ar

  4. Xe


Correct Option: C
  1. this acid, in ancient times, was used to eliminate ant-hills

  2. this corrosive acid is secreted by ants to drive away their enemies

  3. this acid was first obtained by the distillation of ants

  4. ants are attracted by the odour of this acid


Correct Option: C

The ore which is found in abundance in India is

  1. monazite

  2. fluorspar

  3. bauxite

  4. magnetite


Correct Option: A
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