Questions

Q:

To which class do honey bees bees belong?

A) Insecta B) Apidae
C) Arthropoda D) Hymenoptera
 
Answer & Explanation Answer: A) Insecta

Explanation:

Honey bees bees belong to the class insects or insecta.

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Q:

Microorganisms that cause disease are called

A) Pathogens B) Microbes
C) Infectees D) None of the above
 
Answer & Explanation Answer: A) Pathogens

Explanation:
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Q:

Which is the longest National Highway in India?

A) NH - 47 B) NH - 4
C) NH - 7 D) NH - 44
 
Answer & Explanation Answer: D) NH - 44

Explanation:

NH - 44 covering Srinagar to Kanyakumari is the longest National Highway in India by the NHDP. It covers a distance of 3,745 Kms. It was previously known as NH - 7.

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Filed Under: Indian Geography
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Q:

Which equation represents a neutralization reaction?

A) 2Al(OH)3(s) ---> Al2O3(s) + 3H2O(l) B) H2SO4(aq) + 2NaOH(aq) ---> Na2SO4(aq) + 2H2O(l)
C) 2H2(g) + O2(g) ---> 2H2O(l) D) H2CO3(aq) ---> CO2(g) + H2O(l)
 
Answer & Explanation Answer: B) H2SO4(aq) + 2NaOH(aq) ---> Na2SO4(aq) + 2H2O(l)

Explanation:

Here in the option B) H2SO4 - Sulfuric acid is reacting with sodium hydroxide (NaOH), a base to produce a salt (Sodium Sulfate), and water (H2O). This is characteristic of of acid-base neutralization reactions.

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Filed Under: Chemistry
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Q:

Explain Data Definition Language

Answer

Data Definition Language (DDL):- are the SQL statements that define the database structure.


Example:



  1.  CREATE

  2.  ALTER

  3.  DROP

  4.  TRUNCATE

  5.  COMMENT

  6.  RENAME

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Q:

Which microscope is often used to view metal surfaces?

A) Optical microscopes B) Scanning tunneling microscopes
C) Electron microscopes D) None of the above
 
Answer & Explanation Answer: B) Scanning tunneling microscopes

Explanation:

Microscopes are of three types. They are :

 

1) Optical microscopes

 

2) Electron microscopes

 

3) Scanning tunneling microscopes

 

 Which_microscope_is_often_used_to_view_metal_surfaces1538720175.png image

 

Scanning tunneling microscopes are the microscopes that are used to view metal surfaces.

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Filed Under: Physics
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Q:

After how many years Rajya Sabha is dissolved?

A) It is never dissolved B) 2 years
C) 5 years D) 6 years
 
Answer & Explanation Answer: A) It is never dissolved

Explanation:

Rajya Sabha is a permanent body and is not subject to dissolution. However, one third of the members retire every second year, and are replaced by newly elected members.

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Q:

If the current flowing through a circuit is 0.6 A for 6 mins, the amount of electric charge flowing through it is .......

A) 360C B) 216 C
C) 60 C D) 36 C
 
Answer & Explanation Answer: B) 216 C

Explanation:
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Filed Under: Physics
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