Questions

Why does a fountain pen leak in aeroplane flying at a height?

The taper on the lathe spindle is

The Twelfth Five-year Plan focused on inclusive growth. Which of the following were considered as challenges for inclusiveness?

1.Poverty

2.Group inequality

3.Regional imbalance

4.Unemployment

Select the correct answer using the code given below.

Improve the bracketed part of the sentence.
(Hardly nothing) was offered to the victims of the earthquake.

The longitudinal valley lying between lesser Himalaya and the ____________ are known as Duns.

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Scot­free

Will the following function work?

f1 ( int a, int b )

{

    return ( f2 (20) );

}

f2 ( int a )

{

    return ( a * a );

}

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

The antigen-antibody immunological reaction is used to be regarded as typical of immunological responses. Antibodies are proteins synthesized by specialized cells called plasma cells, which are formed by lymphocytes (cells from the lymph system) when an antigen, a substance foreign to an organism's body, comes in contact with lymphocytes. Two important manifestations of antigen-antibody immunity are lysis, the rapid physical rupture of antigenic cells and the liberation of their contents into the surrounding medium, and phagocytosis, a process in which antigenic particles are engulfed by and very often digested by macrophages and polymorphs. The process of lysis is executed by a complex and unstable blood constituent known as complement, which will not work unless it is activated by a specific antibody; the process of phagocytosis is greatly facilitated when the particles to be engulfed are coated by a specific antibody directed against them.

What happens when an antigen comes in contact with lymphocytes?