General Knowledge Questions

Computers cannot work without

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

We set out for the gallows. Two warders marched on either side of the prisoner, with their rifles at the slope; two others marched close against him, gripping him by his arm and shoulder, as though, at once pushing and supporting him. The rest of us, magistrates and the like, followed behind. Suddenly, when we had gone ten yards, the procession stopped short without any order or warning. A dreadful thing had happened ­ a dog, come goodness knows whence, had appeared in the yard. It came bounding among us with a loud volley of barks, and leapt round us wagging its whole body, wild with glee at finding so many human beings together. It was a large woolly dog, half Airedale, half Pariah. For a moment, it pranced round us, and then, before anyone could stop it, it had made a dash for the prisoner, and jumping up tried to lick his face. Everyone stood aghast, too taken aback even to grab at the dog.

How did the author respond to the appearance of the dog?

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

The battle (to rage) for some time.

In the following question, out of the four alternatives, choose the word which best expresses the meaning of the given word and click the button corresponding to it.

REPROOF

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

A   parallel-plate   capacitor,with   air   in between  the  plates,  has  capacitance  C. Now  the  space  between  the  two  plates  of the  capacitor  is  filled  with  a  dielectric  of dielectric constant 7. Then the value of the capacitance will become

In total internal reflection, the light travel from

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best
expresses the same sentence in Passive/Active voice.
I have a feeling that you are keeping a secret.