Questions

Q:

All atoms of uranium have the same

A) Atomic mass B) Number of electrons
C) Atomic number D) Mass number
 
Answer & Explanation Answer: C) Atomic number

Explanation:

There are many isotopes of uranium and all of them have same atomic number i.e, sum of nmber of neutrons and protons.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

Difference between Candidate key and Primary key?

Answer

Candidate Key – A Candidate Key can be any column or a combination of columns that can qualify as unique key in database. There can be multiple Candidate Keys in one table. Each Candidate Key can qualify as Primary Key. 


Primary Key – A Primary Key is a column or a combination of columns that uniquely identify a record. Only one Candidate Key can be Primary Key.






        • One needs to be very careful in selecting the Primary Key as an incorrect selection can adversely impact the database architect and future normalization. For a Candidate Key to qualify as a Primary Key, it should be Non-NULL and unique in any domain.




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Q:

The famous Eiffel Tower is in

A) France B) Italy
C) Paris D) Germany
 
Answer & Explanation Answer: C) Paris

Explanation:
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Filed Under: Famous Places

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Q:

When is the shortest day observed?

A) June 21 B) December 22
C) June 22 D) December 21
 
Answer & Explanation Answer: B) December 22

Explanation:

Shortest of all the days is observed on Decenber 22

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Q:

 ________ is a simple object model that is easier to understand and use than OLE DB, and is frequently used for database applications.

A) ASP B) XML
C) ODBC D) ADO
 
Answer & Explanation Answer: D) ADO

Explanation:
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Filed Under: Database

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Q:

_________ is known as the Queen of the Arabian Sea?

A) Cochin B) Mumbai
C) Mangalore D) Surat
 
Answer & Explanation Answer: A) Cochin

Explanation:
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Filed Under: Indian Geography

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Q:

The hormone that helps in the implantation of embryo

A) Testosterone B) Insulin
C) Prolactin D) Progesterone
 
Answer & Explanation Answer: D) Progesterone

Explanation:
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Filed Under: Biology

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Q:

Alum is used 

A) as an analgesic B) in the purification of water
C) as a fertilizer D) as a disinfectant
 
Answer & Explanation Answer: B) in the purification of water

Explanation:

Alum is a common alum, potassium aluminum sulphate K2SO4.Al2SO43.24H2O which makes colloidally suspended impurities in water such as clay to settle down.

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Filed Under: Chemistry
Exam Prep: AIEEE

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