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Q:

Conductivity in a metal results from the metal atoms having

A) highly mobile electrons in the valence shell B) high electronegativity
C) high ionization energy D) highly mobile protons in the nucleus
 
Answer & Explanation Answer: A) highly mobile electrons in the valence shell

Explanation:

The outer most electrons that are free to move are called valency electrons that are responsible for the conductivity in the metal atoms.

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Filed Under: Chemistry
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Q:

Browning of paper in old books is caused by

A) oxidation of cellulose B) collection of dust
C) frequent use D) lack of aeration
 
Answer & Explanation Answer: A) oxidation of cellulose

Explanation:
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Filed Under: Chemistry
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Q:

Representation level data models provide the concepts that are close to the way many users perceive data

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

Explanation:

High level data models provide the concepts that are close to the way many users perceive data

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Subject: Database
Job Role: Database Administration

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Q:

A UPS connects your computer and a power source.

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

Explanation:

A UPS (Uninterruptible Power Supply) is a device that provides battery backup when the electrical power fails or drops to an unacceptable voltage level.


Related image


Small UPS systems provide power for a few minutes; enough to power down the computer in an orderly manner, while larger systems have enough battery for several hours.

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Subject: Computer
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Q:

Meaning of 'Stalk'?

A) Shoot B) Cane
C) Bent D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Stalk means the main stem of a herbaceous plant.

 

Synonyms for Stalk are - Shoot, trunk, cane, bent, reed, straw, bine, stock,...

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Filed Under: English
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Q:

_______ is the largest city in South Africa and very famous for goldmines.

A) Cape Town B) Johannesburg
C) Kimberley D) Durban
 
Answer & Explanation Answer: B) Johannesburg

Explanation:
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Filed Under: Famous Places

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Q:

Which is a good example of roman portrait painting?

A) Hellenistic B) Faiyum portraits
C) Both A & B D) The bust of Julius Caesar
 
Answer & Explanation Answer: D) The bust of Julius Caesar

Explanation:

Which_is_a_good_example_of_roman_portrait_painting1542610144.jpg image

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Filed Under: Indian History
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Q:

National Khadi Festival 2018 held in

A) Hyderabad B) Kolkata
C) Bangaluru D) Mumbai
 
Answer & Explanation Answer: D) Mumbai

Explanation:
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Filed Under: General Awareness
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