GATE Questions

Q:

Gases in the atmosphere and their percentages?

Answer

The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases.


Earth's atmosphere is composed of many gases. Their percentages by volume is given by::


 
78% Nitrogen,


21% Oxygen,


0.9% Argon, and


0.03% Carbon dioxide 


And very small percentages of other elements.


 

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Q:

Oxygenated blood flows through which vessel?

A) Pulmonary Veins B) Pulmonary Arteries
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) Pulmonary Veins

Explanation:

The oxygenated blood  flows through pulmonary veins then leaves the lungs, which return it to the left heart, completing the pulmonary cycle.

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Filed Under: Biology
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Q:

3/5 as a decimal fraction?

A) 0.25 B) 0.45
C) 0.60 D) 0.75
 
Answer & Explanation Answer: C) 0.60

Explanation:

Given fraction is 3/5

Now, multiply with 2 for numerator and denominator

we get,

3/5 x 2/2 = 6/10

 

When we divide, 6 with 10, we get 0.6 as quotient.

 

Hence, 3/5 as a decimal fraction is 0.6.

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Filed Under: Decimal Fractions
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Q:

56/32 simplified value?

A) 1.705 B) 1.450
C) 1.75 D) 7.50
 
Answer & Explanation Answer: C) 1.75

Explanation:

56/32 can be reduced as

 

56/32

= 28/16

= 14/8

= 7/4

= 1 3/4

= 1.75

 

Hence, simplified value of 56/32 =  3/4 = 1.75.

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Filed Under: Simplification
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Q:

When a chemical bond is broken energy is

A) transferred B) released
C) used D) None of the above
 
Answer & Explanation Answer: C) used

Explanation:

Bond breaking is an endothermic process.

Hence, bond breakage needs an amount of energy and uses some energy based on the strength of the bond to break the bond.

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Filed Under: Chemistry
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Q:

What is 16 bit?

Answer

Anything larger and the computer would need to break the number into smaller pieces.


 


16-bit is a computer hardware device or software program capable of transferring 16 bits of data at a time.


Today, 16-bit hardware and software has been replaced by 32-bit and 64-bit alternatives, which give the computer more memory to work with; increasing overall performance.


 


For example, early computer processors (e.g., 8088 and 80286) were 16-bit processors, meaning they were capable of working with 16-bit binary numbers (decimal number up to 65,535).

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Q:

Where was christianity founded?

A) Jerusalem B) Bethlehem
C) Palestine D) None of the above
 
Answer & Explanation Answer: A) Jerusalem

Explanation:

Christianity was founded by hesus Christ in Jerusalem, capital of Israel.

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Q:

An atom that loses or gains electrons is called

A) Proton B) Ion
C) Isotope D) Neutron
 
Answer & Explanation Answer: B) Ion

Explanation:

An atom that loses or gains electrons is called as ion. Gaining of electron is negative charge and is called as Anion and lossing of eectron is called Cation.

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Filed Under: Chemistry
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