General Knowledge Questions

Q:

A wire of copper having length I and area of cross-section A is taken and a current / is flown through it. The power dissipated in the wire is P. If we take an aluminium wire having same dimensions and pass the same current through it, the power dissipated will be

A) P B) < P
C) > P D) 2P
 
Answer & Explanation Answer: C) > P

Explanation:

Aluminum has a resistivity varying from 2.65 to 2.82 × 10−8 Ω m.The resistivity of copper is generally given as: 1.72 x 10-8 Ω.m.So, since resistivity of aluminium is higher than that of copper, so Power dissipated will be greater than P. this is because rest of the factors (l, A and i) are constant.

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Filed Under: Physics
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Q:

Which of the following represents a positive economic statement?

A) The government should extend unemployment benefits. B) The unemployment rate is too high.
C) Taxes should not be increased since that will lower spending. D) The unemployment rate is 4.8 percent.
 
Answer & Explanation Answer: D) The unemployment rate is 4.8 percent.

Explanation:
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Filed Under: Indian Economy
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Q:

Amazon Rainforest Forests are located in which continent?

A) South America B) Australia
C) North America D) Antarctica
 
Answer & Explanation Answer: A) South America

Explanation:

Amazon Rainforest Forests are located in South America.

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Filed Under: World Geography
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Q:

What is the world's least densely populated country?

Answer

Mongolia

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Subject: World Geography

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Q:

Estonia is a country in which continent?

 

A) Asia B) South America
C) Europe D) Africa
 
Answer & Explanation Answer: C) Europe

Explanation:
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Filed Under: World Geography
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Q:

Trishna gas project, which is in news recently, is located in which state?

A) Tripura B) Maharashtra
C) Madhya Pradesh D) Uttar Pradesh
 
Answer & Explanation Answer: A) Tripura

Explanation:
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Filed Under: General Awareness
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Q:

Work done in a free expansion process is

A) Minimun B) 0
C) Maximum D) None of the above
 
Answer & Explanation Answer: B) 0

Explanation:

No work done as there is no external external pressure in free expansion. 

 

Hence, Work done in a free expansion process is Zero.

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Filed Under: Physics
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Q:

Earth is known as Blue planet?

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

Explanation:

We know that, 


Earth is known as Watery planet.


Neptune is known as Blue planet. 

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Subject: General Science
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