Bank PO Questions


Q:

Why is burning coal a major source of pollution?

Answer

Coal is chemically complex fuel. Whenever it is burned, gases are given off and particles of ash, called "fly ash," are released. Release of sulfur from burning into the air. The sulfur in coal combines with oxygen to form sulfur dioxide, which can be a major source of air pollution if emitted in large enough quantities. This stuff comes back as acid rain when it attaches itself to a raindrop. 


 


Today, many of the effects of coal burning have been reduced significantly or eliminated. This is super-nasty and is only stopped by buying low-sulfur coal from Montana or Wyoming. The eastern power plants have to pay to move the coal from out west and this increases the price of power production.

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Subject: General Science Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Which country has been ranked number one in pollution related deaths ?

A) Australia B) Indonesia
C) India D) Japan
 
Answer & Explanation Answer: C) India

Explanation:
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Filed Under: General Awareness
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Q:

Isoneph indicates the lines of equal

A) cloudiness B) salinity
C) temperature D) pressure
 
Answer & Explanation Answer: A) cloudiness

Explanation:

A line on a map connecting points that have the same average percentage of cloudiness is called Isoneph.

 

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Filed Under: Indian Geography
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Q:

Access to potable water is most heavily limited by

A) Raw water supplies B) Money
C) Climate D) Precipitation
 
Answer & Explanation Answer: B) Money

Explanation:

The potable water is the water, which is tested and safe for drinking purpose and cooking preparations. The water is tested and purified in industries. So, the potable water is costly.

Access_to_potable_water_is_most_heavily_limited_by1557724525.jpg image

Hence, Access to potable water is most heavily limited by money.

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Filed Under: General Science
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Q:

In economics, if a good is inelastic,

A) its supply or demand is not sensitive to price changes. B) consumers have lost an interest in purchasing it.
C) producers have lost an interest in manufacturing it. D) its supply or demand is too sensitive to price changes.
 
Answer & Explanation Answer: A) its supply or demand is not sensitive to price changes.

Explanation:

If the percent change in quantity demanded is less than the percent change in price, economists label the demand for the good as inelastic.

A good that is inelastic does not have very stretchy demand. In economic terms, the quantity demanded does not change a lot when the price changes.

 

So, if the price of a good increases by 10 percent and the quantity demanded decreases by only 5 percent or less than 10, that good is said to have inelastic demand.

 

Hence, in this case, consumers are not considered very sensitive, or responsive, to a change in the price of that good.

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Filed Under: Indian Economy
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Q:

What is the first step in Photosynthesis?

A) Formation of ATP B) Joining of 3-carbon atom to form glucose
C) Ionization of water D) Excitement of an electron of chlorophyll photon of light
 
Answer & Explanation Answer: D) Excitement of an electron of chlorophyll photon of light

Explanation:

The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

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Filed Under: General Science
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Q:

What is the name of a 12-year-old Indian-origin boy who has been crowned as the UK's 'child genius' in a popular television quiz competition ?

A) Rahul Doshi B) Anshul Verma
C) Ravi Sharma D) Ronan Kumar
 
Answer & Explanation Answer: A) Rahul Doshi

Explanation:
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Q:

What sugar is found in RNA?

A) Deoxyribose B) Ribose
C) Pentose D) Sucrose
 
Answer & Explanation Answer: B) Ribose

Explanation:

RNA - ribonucleic acid is a type of nucleic acid. The sugar contained in it is called Ribose.

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Filed Under: Biology
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