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:

The study of Brain is called as

A) Neurology B) Nephrology
C) Phrenology D) Neurobiology
 
Answer & Explanation Answer: C) Phrenology

Explanation:

The study of Brain is called as Phrenology

 

Neurology is a branch of medicine dealing with disorders of the nervous system.

Nephrology is the study of kidney.

Neurobiology or Neuroscience is the study of the nervous system

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Q:

What are the different types of SQL statements ?

Answer

SQL statements are broadly classified into three. They are


1. DDL – Data Definition Language


DDL is used to define the structure that holds the data. For example, Create, Alter, Drop and Truncate table.


2. DML – Data Manipulation Language


DML is used for manipulation of the data itself. Typical operations are Insert, Delete, Update and retrieving the data from the table. The Select statement is considered as a limited version of the DML, since it can't change the data in the database. But it can perform operations on data retrieved from the DBMS, before the results are returned to the calling function.


3. DCL – Data Control Language


DCL is used to control the visibility of data like granting database access and set privileges to create tables, etc. Example - Grant, Revoke access permission to the user to access data in the database.

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Q:

Movement of cell against concentration gradient is called

A) active transport B) diffusion
C) osmosis D) passive transport
 
Answer & Explanation Answer: A) active transport

Explanation:

The only transport method that can move species against their concentration gradient i.e, from low to high concentration is called Active transport.

 

Facilitated diffusion only moves species down their concentration gradient i.e, from high to low concentration.

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Q:

Which three components are common to all amino acids?

Answer

Any two amino acids vary structure by the r-group, otherwise all amino acids are in the same structure. All amino acids have in common carboxyl group -COO , amino group -NH3+ and a hydrogen -H and a r-group which are all bonded to a central carbon.

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Q:

The National forest policy aims at maintaining how much of the geographical area under forests

A) Half B) One-third
C) One-fourth D) One-fifth
 
Answer & Explanation Answer: B) One-third

Explanation:
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Q:

Particles of matter are continuously moving.

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

Explanation:

Yes, in any matter the particles are always moving. But the speed of the particles moving sepends on the temperature. As temperature increases, the speed of the particles also increases.

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Q:

If you have a keyword with a low CTR, what can you expect?

Answer

A lower Quality Score on the Search Network.

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