Questions

Q:

Metals are good conductors of electricity because

A) The atoms are lightly packed B) They contain free electrons
C) They have high melting point D) All the above
 
Answer & Explanation Answer: B) They contain free electrons

Explanation:

Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity.

Because the electrons in the atom's higher energy levels can separate from the atoms easily, they can be pulled out with very little energy. Because the molecular structure of the metal is such that 'free electrons' are free to move, thus being categorized as electrically conductive.

 

For example, copper is used for electrical wiring because it is a good conductor of electricity.

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Filed Under: Physics
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Q:

What type of simple machine is an axe?

A) Lever B) Wedge
C) Both A & B D) The screw
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The simple machine Axe is made up of both the lever arm and a wedge.

                              what_type_of_simple_machine_is_an_axe1536562753.png image

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4 4935
Q:

Solve the following equations and find the value of abc?

 

A) 3 B) 6
C) 9 D) 12
 
Answer & Explanation Answer: B) 6

Explanation:

From the given equations,

(a+b+c)2=a2+b2+c2+2(ab+bc+ca)
(6)2=14 + 2(ab + bc + ca)
36 - 14 = 2(ab + bc + ca)
22/2 = ab + bc + ca
ab + bc + ca = 11

a3 + b3 + c3 - 3abc = (a + b + c)(a2 + b2 + c2 - ab - bc - ca)
= (6) (14 - 11)
=(6)(3)
=18

Since, a3 + b3 + c3 - 3abc = 18

36 - 3abc = 18

-3abc = 18 - 36

-3abc = -18

abc = 6.

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Filed Under: Math Puzzles
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Q:

Union Minister of Railways Shri Suresh Prabhakar Prabhu released the book titled “Indian Railway- The weaving of a National Tapestry” jointly authored by Sanjay Chadha, Vidya Krishnamurthi and ___?

A) Andy Marino B) Sreedharan
C) Rakesh Mohan D) Bibek Debroy
 
Answer & Explanation Answer: D) Bibek Debroy

Explanation:
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Filed Under: Books and Authors
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Q:

Consent of the People means

A) All the People B) Majority of People
C) Leader of the People D) A few People
 
Answer & Explanation Answer: B) Majority of People

Explanation:

Consent of the People means the Majority of People, as expressed by votes in elections.

Consent of the governed refers to the idea that a government's legitimacy and moral right to use state power is only justified and lawful when consented to by the people or society over which that political power is exercised.

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Filed Under: Indian Politics
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Q:

If both the office of President and Vice-president vacant, who has been empowered the President function.

A) Chief Justice B) Prime Minister
C) Speaker of Loksabha D) Chief of Army Staff
 
Answer & Explanation Answer: A) Chief Justice

Explanation:
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Q:

Who discovered the Indus Valley Civilization

A) Sir Leonard wooley B) V.S.Agarwal
C) Dayaram Sahni D) A.L.Basham
 
Answer & Explanation Answer: C) Dayaram Sahni

Explanation:
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Filed Under: Indian History

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Q:

Netherlands is hosting a festival of India at which cities in 2017 ?

A) Hague B) Amsterdam
C) Groningen D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

A Festival of India is being organized in the Netherlands from 26 January – 27 March 2017. The events will be held in the cities of The Hague, Amsterdam, Rotterdam/Maastricht, Utrecht, Eindhoven and Groningen.

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