Questions

Q:

Who is author of the book 'Preparing for the Twenty First Century '

A) V.S.Naipaul B) John Ruskin
C) Paul Kennedy D) Henry Kissinger
 
Answer & Explanation Answer: C) Paul Kennedy

Explanation:
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Filed Under: Books and Authors

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Q:

How would you dynamically allocate a 2-D array of integers?

Answer

#include "alloc.h"


#define MAXROW 3


#define MAXcol 4


main()


{


        int *p, i, J;


        p = (int *) malloc (MAXROW * MAXCOL * sizeof (int));


         for ( i=0; i < MaxROW ; i++)


         {


                for (j=0; j < MAXCOL ; j++)


                { 


                      p [ i * MAXCOL + j] = i;


                       printf ( "%d", p [i * MAXCOL + j] );


                 }


                  printf ("\n");


          }


}

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Subject: Programming

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Q:

what is the source of energy for the water cycle?

A) Rain water B) Sun
C) Clouds D) Animals
 
Answer & Explanation Answer: B) Sun

Explanation:

The water cycle is a term for the movement of water between the Earth's surface, the sky and underground. Water evaporates due to heat from the sun. Hence, the water cycle is driven primarily by the energy from the sun.

watercycle1531808968.gif image

This solar energy drives the cycle by evaporating water from the oceans, lakes, rivers, and even the soil. Other water moves from plants to the atmosphere through the process of transpiration.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

In the context of memory management, what are placement and replacement algorithms?

Answer

Placement algorithms determine where in available real-memory to load a program. Common methods are first-fit, next-fit, best-fit. Replacement algorithms are used when memory is full, and one process (or part of a process) needs to be swapped out to accommodate a new program. The replacement algorithm determines which are the partitions to be swapped out.

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Q:

During Mughal period there was continuous emigration of the .........to places ruled by Hindu Rajas

A) Nobles B) Poor
C) Middle Class D) Foreign residents
 
Answer & Explanation Answer: B) Poor

Explanation:
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Filed Under: Indian History

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Q:

Why is india called bharat?

Answer

The name Bharat is derived from the legendary king Bharat who was ancestor of kauravas and pandavas, son of King Dushyanta and Shakuntala.


The name India is derived from the river Sindhu which flows in the north west of the country. The Greeks used to call us Indoi meaning the people of the Indus.

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Subject: Indian History Exam Prep: AIEEE , Bank Exams
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Q:

Washing soda is the common name for

A) Sodium Bicarbonate B) Calcium Carbonate
C) Sodium Carbonate D) Calcium Bicarbonate
 
Answer & Explanation Answer: C) Sodium Carbonate

Explanation:

Washing soda is the common name for Sodium Carbonate (Na2CO3). It is also called as Soda Ash.

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Filed Under: Chemistry
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Q:

The cover of a solar coker is made of glass because 

A) it absorbs sun's rays B) it reflects sun's rays
C) it retains the heat inside by the green house effect D) it rediates heat better than metals
 
Answer & Explanation Answer: C) it retains the heat inside by the green house effect

Explanation:

As the inside of the cooker is painted black, heat absorption is more producing heat waves of longer wavelength which cannot escape through glass and hence are trapped inside. Thus the food is cooked.

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Filed Under: Physics

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