GATE Questions

Q:

which of the following statements are correct

A) Sir Richard Arkwright - Father of industrial revolution B) Michael Faraday - Discovered Benzene and invented Bunsen Burner
C) Thomas Alva Edison - phonograph and motion picture camera D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Inventors and their Inventions ::

 

  • Sir Richard Arkwright - Father of industrial revolution.

 

  • Michael Faraday - Discovered Benzene and invented Bunsen Burner.

 

  • Thomas Alva Edison - Invented Phonograph and motion picture camera.
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Q:

Forces of attraction limit the motion of particles most in solids.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

We know that, solids have definite shapes and definite volumes, whereas liquids have definite volumes but indefinite shapes and coming to gases it has indefinite volumes and indefinite shapes.


 


Hence, only in solids, the forces of attraction limit the motion of particles.

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Subject: Physics
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Q:

The study of trees is called

A) Histology B) Andreology
C) Sistology D) Dendrology
 
Answer & Explanation Answer: D) Dendrology

Explanation:

The study of trees is called Dendrology.

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Q:

One billionth of a second is called

A) microsecond B) picoseconds
C) millisecond D) nanosecond
 
Answer & Explanation Answer: D) nanosecond

Explanation:

A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second or one billionth of a second.

 

  • That is, 1/1,000,000,000 of a second, or 10^−9 seconds.
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Q:

which is a best way to measure Ground Distance?

Answer

Pace Count is a way to measure to Ground Distance.


Pace Count is nothing but regular single natural step of about 30 inches long.

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Q:

As water is cooled from 4 deg C to 0 deg C, its density

A) increases B) decreases
C) remains same D) None of the above
 
Answer & Explanation Answer: B) decreases

Explanation:

As water is cooled from 4 deg C to 0 deg C, the water reaches its freezing point and starts forming ice crystals. Then the volume of that ice cubes increases and its density decreases. Hence, it is the reason that ice will float on water as ice has less density than the water.

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Q:

The process of copying dna is called

A) Copying B) Replication
C) Repulsion D) Replying
 
Answer & Explanation Answer: B) Replication

Explanation:

The process of copying dna is called Replication.

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Q:

The main result of aerobic respiration is the

A) production of lactic acid as an end product B) production of ATP from the breakdown of glucose
C) conversion of radiant energy into chemical energy D) storage of energy in a polysaccharide
 
Answer & Explanation Answer: B) production of ATP from the breakdown of glucose

Explanation:

The three steps within the aerobic respiration process are glycolysis, the citric acid cycle, and oxidative phosphorylation.

Photosynthesis builds glucose, and what was built in photosynthesis is broken down during aerobic respiration.

 

Hence, production of ATP from the breakdown of glucose is the main result of aerobic respiration.

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