Questions

What is used to prevent freezing of fuel in space crafts?

Calculate the frequency (in Hz) of a sound wave of wavelength 4m travelling with a speed of 200 m/s.

Research designed to evaluate theories is called

In whose consultation does the President convene and prorogue all sessions of Parliament ?

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

We have seen that, when

X-think of it as losing its parts and shrivelling to a point
Y-occupy any portion of space, we need not
Z-we deny that a mental image can

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

Very poor or bad.

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

Over my dead body

 In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.