Questions

Q:

Which three parts of the computer receive input?

 

A) MICR, Barcode readers, Touch-screens B) Keyboard, ALU, Printers
C) Keyboard, Mouse, Printers D) Printers, MICR, Touch-screens
 
Answer & Explanation Answer: A) MICR, Barcode readers, Touch-screens

Explanation:

The main function of input devices is to direct commands and data into computers. Computers then use their CPU to process this data and produce output.

 

Examples of input devices - keyboards, mouse, barcode readers, Magnetic Ink Character Readers (MICR), Optical Character Readers (OCR), touch screens, etc...

 

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Q:

Which of the following refers to a small, single-site network ?

A) LAN B) DSL
C) RAM D) USB
 
Answer & Explanation Answer: A) LAN

Explanation:
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Q:

What is the name of person which controls a football match

A) A referee B) An Umpire
C) A spectator D) A goalkeeper
 
Answer & Explanation Answer: A) A referee

Explanation:
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Q:

Is C2 Paramagnetic or Diamagnetic?

A) Paramagnetic B) Diamagnetic
C) Ferromagnetic D) Can't be determined
 
Answer & Explanation Answer: B) Diamagnetic

Explanation:

Paramagnetic Molecules ::

 

If the Electronic configuration of a molecule has any unpaired electrons, then that molecule is said to be Paramagnetic.

 

Diamagnetic Molecules ::

 

If the Electronic configuration of a molecule has only paired or spin paired electrons, then that molecule is said to be Diamagnetic.

 

Is_C2_Paramagnetic_or_Diamagnetic1556263140.jpg image 

 

Here the molecule C2 has all paired electrons in its electronic configuration. So C2 is Diamagnetic.

 

Whereas, B2 molecule has unpaired electrons. So B2 is Paramegnetic.

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Filed Under: Chemistry
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Q:

Statement I :

Tides are the rise and fall of sea levels caused by the combined effects of the gravitationed forces exerted by the Moon and the Sun and the rotation of the Earth.

Statement II :

The Earth rotates from west to east. 

 

A) Both the statements are individually true and Statement II is the correct explanation of Statement I B) Both the statements are individually true but Statement II is not the correct explanation of Statement I
C) Statement I is true but Statement II is false D) Statement I is false but Statement II is true
 
Answer & Explanation Answer: B) Both the statements are individually true but Statement II is not the correct explanation of Statement I

Explanation:

Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of Earth.

Statement 2 is also correct. But it is not the correct explanation for the 1st statement.

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Filed Under: General Science
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Q:

The basic operations performed by a computer are

A) Logical operation B) Storage and relative
C) Arithmetic operation D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

The_basic_operations_performed_by_a_computer1537941097.png image

The basic operations performed by a computer are Arithmetic operation, Logical operation and Storage and relative.

 

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66 24981
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


Prebiotics are the lesser-known gut-health promoters which serve as food for good bacteria inside the gut. "We found that dietary prebiotics can improve non-REM (random eye movement) sleep, as well as REM sleep after a stressful event," said Robert Thompson, a PhD researcher at University of Colorado Boulder in the U.S. Prebiotics are dietary fibres found naturally in foods like artichokes, raw garlic, leeks and onions.

When beneficial bacteria digest prebiotic fibre, they not only multiply, improving overall gut health, but they also release metabolic by-products. Researchers fed three-week-old male rats a diet of either standard chow or chow that included prebiotics. They then monitored the rats' body temperature, gut bacteria and sleep-wake cycles — using electroencephalogram (EEG), or brain activity testing over time. Findings revealed that the rats on the prebiotic diet spent more time in non-rapid-eye-movement (NREM) sleep, which is restful and restorative, than those on the non-prebiotic diet.


What type of sleep is restorative?

A) NREM B) REM
C) EEG D) ECG
 
Answer & Explanation Answer: A) NREM

Explanation:
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Filed Under: English
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Q:

enum colors {BLACK,BLUE,GREEN}

main()

{

printf( "%d..%d..%d", BLACK, BLUE, GREEN );

return(1);

}

A) 1..2..3 B) 0..1..2
C) 1..1..1 D) 0..0..0
 
Answer & Explanation Answer: B) 0..1..2

Explanation:

enum assigns numbers starting from 0, if not explicitly defined.

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