Questions

Q:

Which of the following is a renewable source of energy

A) Natural gas B) Coal
C) Wind D) Oil
 
Answer & Explanation Answer: C) Wind

Explanation:

The energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment.


Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.

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Filed Under: Physics
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Q:

Differentiate between a.) Testing and Debugging b.) Two tier and Three tier architecture c.) Alpha testing and Beta testing d.) Static testing and dynamic testing

Answer

a.) Testing and Debugging 


Testing is process of verifying if the application matches requirements and reporting bugs; Testing is usually done by an independent testing team while debugging is a process of finding and fixing bugs with the intention of reducing bugs; Debugging is usually done by the programmer.


 


b.) Two tier and Three tier architecture


In a two tier architecture there is a data server and a client application. Client application directly accesses the server data. In a three tier architecture there is a data server, a client application and a server application. Client application calls the server application which in turn fetches data from the data server and returns back to client application.


 


c.) Alpha testing and Beta testing


Alpha testing is conducting acceptance testing in the environment where the application was developed. It is done by the customer. Beta testing is conducting acceptance testing is the customer environment. It is done by the group of customers or users who will actually be using it.


 


d.) Static testing and dynamic testing


Static testing is checking the application without actually running the application whereas dynamic testing checks the application by running it.

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Subject: Software Testing

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Q:

What would be the output of the following program?

main()

{

     char ch ='A';

      printf ("%d%d", sizeof (ch), sizeof ('A'));

}

Answer

1   2

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Subject: Programming

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Q:

Plants grow in size because of 

A) addition of cells B) increase in size of cells
C) enlargement of cells D) elongation of cells
 
Answer & Explanation Answer: A) addition of cells

Explanation:

Plants grow in size both in height and in girth. Enlargement of cells already present cannnot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.

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Filed Under: Biology

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Q:

Air is said to be saturated when

A) its pressure is minimum B) it contains the maximum content of water vapour
C) its thickness is maximum D) it blows over the barren land
 
Answer & Explanation Answer: B) it contains the maximum content of water vapour

Explanation:

Air is said to be saturated when it contains the maximum content of water vapour.

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Q:

Cafe Coffee Day has entered into an agreement with which airlines carrier for becoming the single-point vend or supplying snacks and beverages on board?

 

A) Indian (Indian Airlines) B) Air Sahara
C) Air Deccan D) Kingfisher Airlines
 
Answer & Explanation Answer: C) Air Deccan

Explanation:
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Q:

Which virus is not associated with cancer?

A) Epstein-Barr virus B) Papillomavirus
C) Retrovirus D) Hepatitis virus
 
Answer & Explanation Answer: C) Retrovirus

Explanation:

In the above given options, Retrovirus is the only virus which is not associated with cancer. Here the viruses which are associated with different types of cancer. They are:

Hepatitis virus which is associated with Liver cancer

Papillomavirus which is associated with Cervical cancer

Epstein-Barr virus which is associated with Burkitt's lymphoma.

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Filed Under: Biology
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Q:

Which of the following mixtures is not a colloid?

A) Sugar water B) Milk
C) Paint D) Fog
 
Answer & Explanation Answer: A) Sugar water

Explanation:

Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.

These Colloid substances consists of ultramicroscopic particles of one substance dispersed through another substance from which we cannot separate them.

 

Sugar water is not a colloid and it is a solution in which we can separate them.

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Filed Under: Chemistry
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