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Q:

A capillary tube is partially dipped vertically in a vessel containing water. Due to capillarity  water rises in the tube. The height of water rise in the tube can be increased by 

A) decreasing the radius of the capillary tube B) increasing the radius of the capillary tube
C) increasing the height of water in the vessel D) None of these
 
Answer & Explanation Answer: A) decreasing the radius of the capillary tube

Explanation:

The water rise in a capillary tube dipped in water is such that the weight of water in the tube above the surface of water in the vessel is equal to (balances) the upward force due to surface tension. So it is clear that if the the bore (radius) to the tube is decreased, the height of the water column in it must be greater.  So, (a) is correct.

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Filed Under: Physics

4 3750
Q:

Answer the following puzzle

Answer

To the 6


Explanation:


Starting with the top left clockface and working clockwise around the others, the sum of the numbers pointed to by the 2 hands starts at 3 and increases by 2 each time.

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Subject: Clock puzzles

13 3749
Q:

What is the capital of Bangladesh ?

A) Dhaka B) Chittagong
C) Khulna D) Sylhet
 
Answer & Explanation Answer: A) Dhaka

Explanation:
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Filed Under: Country Capitals

18 3748
Q:

In which core leader competency is the warrior ethos exemplified

Answer

The U.S. Army identifies eight core leadership competencies. One of these--leading by example--exemplifies the warrior ethos. The leader is always required to behave in a way that provides those under his or her command with a positive and effective role model.


 


 In_which_core_leader_competency_is_the_warrior_ethos_exemplified1558508870.jpg image


 


The warrior ethos is a value that is eschewed by the U.S. Army.


The Army defines it as the adherence to a code that includes always putting the mission first, never accepting defeat, never quitting, and never leaving behind a comrade who has fallen.

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Subject: World Organisations Exam Prep: Bank Exams
Job Role: Bank Clerk

3 3747
Q:

Which of the following pair is CORRECT?


I. Summer Olympics 2020 - Tokyo
II. Summer Olympics 2016 - Rio de Janeiro
III. Summer Olympics 2012 - London

A) Only I and II B) Only I and III
C) Only II and III D) All are correct
 
Answer & Explanation Answer: D) All are correct

Explanation:
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Filed Under: Sports
Exam Prep: Bank Exams

2 3745
Q:

The most imposing of all the pyramids is the Great Pyramid at Gizeh near Cairo, was built about 2650 B.C by the ____ of the Old kingdom.

A) Pharaoh Cheops (Khufu) B) King Tutankhamen
C) Hammunrabi D) None of these
 
Answer & Explanation Answer: A) Pharaoh Cheops (Khufu)

Explanation:
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Filed Under: World History

0 3745
Q:

How would you free the memory allocated by the following program?

#include "alloc.h"

#define MAXROW 3

#define MAXCOL 4

main()

{

     int **p, i;

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

      for ( i = 0; i < MAXROW ; i++)

            p[i] = (int *) malloc (MAXCOL * sizeof (int ));

}

Answer

for ( i=0; i < MAXROW ; i++)


free (p[i]);


free (p);

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Subject: Programming

0 3744
Q:

Govind Talwalkar,recipient of the recently announced B.D.Goenka Award for excellence in Journalism, was the editor of which of the following newspapers

A) LokSatta B) The Maharastra Times
C) The Tribune D) Nay Bharat Times
 
Answer & Explanation Answer: B) The Maharastra Times

Explanation:
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Filed Under: Famous Personalities

4 3744