General Knowledge Questions

Q:

An atom has 7 electrons in its M - shell and contains 18 neutrons in its nucleus. What is its mass number

A) 25 B) 27
C) 35 D) 43
 
Answer & Explanation Answer: C) 35

Explanation:

According to Bohr model, Each shell can occupy 2n2 electrons in their orbits where n=1,2,3.. for K,L,M,..

 

The atom has 2 electrons in k, 8 electrons in L and 7 electrons in M = 2 + 8 + 7 = 17

 

And given that its nucleus has 18 neutrons

 

=> its mass number = number of (electrons + neutrons ) = 17 + 18 = 35

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Filed Under: Chemistry

45 10298
Q:

From which one of the  following places,remains of wells have been found in houses belonging to the development stage of the Indus Valley Civilization

A) Harappa B) Kalibangan
C) Lothal D) Mohenjodaro
 
Answer & Explanation Answer: D) Mohenjodaro

Explanation:
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Filed Under: Indian History

16 10289
Q:

The world's largest biofuel plant with production capacity of 110 million liters of fuel annually has been set up in 

A) China B) India
C) Brazil D) USA
 
Answer & Explanation Answer: C) Brazil

Explanation:
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Filed Under: General Awareness

53 10284
Q:

Expansion cards are inserted into

A) Peripheral Devices B) Pegs
C) Slots D) The back of the computer
 
Answer & Explanation Answer: C) Slots

Explanation:

In computing, the expansion card or board or accessory card is a printed circuit board that can be inserted into an electrical connector or expansion slot, on a computer motherboard, to add functionality to a computer system via the expansion bus.

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13 10282
Q:

Sound waves cannot travel in

A) Vacuum B) Water
C) Glass D) Hydrogen gas
 
Answer & Explanation Answer: A) Vacuum

Explanation:

A Sound wave needs a medium for propogation. Hence, Sound cannot travel through a vacuum.

A vacuum is an area without any air, like space. So sound cannot travel through space because there is no matter for the vibrations to work in.

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

6 10273
Q:

Pageant is most similar in meaning to

A) Show B) Gallant
C) Beauty D) Sovereign
 
Answer & Explanation Answer: A) Show

Explanation:

Pageant is most similar in meaning to Show.

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Filed Under: English
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

0 10269
Q:

Mr.Meera Sahib Fathima Beevi is distinguished as the first lady

A) Judge of the High Court B) Governor of a State
C) Judge of the Supreme Court D) Gold medal winner in Sports
 
Answer & Explanation Answer: C) Judge of the Supreme Court

Explanation:
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Filed Under: Famous Personalities

18 10266
Q:

Prof. Amartya Sen has earned worldwide distinction in which of the following fields/areas

A) Economics B) Geology
C) Biochemistry D) Astrophysics
 
Answer & Explanation Answer: A) Economics

Explanation:
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Filed Under: Famous Personalities

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