Questions

What is the fundamental unit of amount of a substance?

A Sonar of a ship sends sounds waves of speed 1500 m/s. These waves are reflected back by the ocean floor in 5 seconds. Find the depth (in m) of the ocean floor.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The battle between attackers and the attacked is becoming still more _____________. Faced with potentially new cyber ____________, the danger to India’s economic and national security is going _________________ geometrical progression. To be forearmed, with _______________ offensive cyber operations and __________________ cyber security, is essential.

To be forearmed, with _______________ offensive cyber operations

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The professor informed that (A)/they had all done(B)/very badly.(C)/No error(D)

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Effervescent

Which among the following is not a characteristic of oxidation reaction?

Ozone is represented as _____.

Animals belonging to phylum _____________ are fundamentally characterised by the presence of a notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits.