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Q:

By volume, 21% of air is _______________.

 

A) hydrogen B) oxygen
C) nitrogen D) carbon dioxide
 
Answer & Explanation Answer: B) oxygen

Explanation:
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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

If an empty cylinder is half filled with a liquid, its center of gravity is 

A) shifted upwards B) shifted downwards
C) shifed neither upward nor downward D) shifted upward or downward depending on the density of the liquid
 
Answer & Explanation Answer: B) shifted downwards

Explanation:

Effect of adding liquid is to make the cylinder more bottom heavy which is a more stable position

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Filed Under: Physics

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Q:

What Does BIOS Stand For

A) Backup Input Output System B) Battery Integrated Operating Setup
C) Basic Input Output System D) Better Integrated Operating System
 
Answer & Explanation Answer: C) Basic Input Output System

Explanation:

BIOS in computers stands for Basic Input Output System.

 

BIOS is a set of computer instructions in firmware which control input and output operations.

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Filed Under: Computer
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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25 5259
Q:

In computer network nodes are

A) the computer that terminates the data B) the computer that originates the data
C) the computer that routes the data D) all of the mentioned
 
Answer & Explanation Answer: D) all of the mentioned

Explanation:

In computer network nodes are

* the computer that terminates the data

* the computer that originates the data

* the computer that routes the data

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Filed Under: Computer
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Q:

What does airbag, used for safety of car driver, contain?

A) Sodium bicarbonate B) Sodium azide
C) Sodium nitrite D) Sodium peroxide
 
Answer & Explanation Answer: B) Sodium azide

Explanation:
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Filed Under: General Science

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Q:

Which color has the highest frequency?

A) Violet B) Red
C) Indigo D) Green
 
Answer & Explanation Answer: A) Violet

Explanation:

In VIBGYOR. It has colors ordered from highest to lowest frequency.

 

              Violet > Indigo > Blue > Green > Yellow > Orange > Red

 

That says Violet has the highest frequency.

We know, Speed of light = Frequency x Wavelength

=> As frequeny is inversely proportional to wavelength i.e, as frequwncy goes high wavelength goes down.

 

So, the violet color has the highest frequency.

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Filed Under: Physics
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Q:

I will disappear every time you say my name. What am I?

A) Thief B) Silence
C) Shadow D) None
 
Answer & Explanation Answer: B) Silence

Explanation:
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Filed Under: Word Puzzles
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Q:

Any letter, number, or symbol found on the keyboard that you can type into the computer...........

A) Output B) Type
C) Character D) Print
 
Answer & Explanation Answer: C) Character

Explanation:
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Filed Under: Computer

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