Questions

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

Crude mineral oil comes out of the earth as a thick brown or black liquid with a strong smell. It is a complex mixture of many different substances, each with its own individual qualities. Most of them are combinations of hydrogen and carbon in varying proportions. Such hydrocarbons are also found in other forms such as bitumen, asphalt and natural gas. Mineral oil originates from the carcasses of tiny animals and from plants that live in the sea. Over million of years, these dead creatures form large deposits under sea­bed and ocean currents cover them with a blanket of sand and silt. As this material hardens, it becomes sedimentary rock and effectively shuts out the oxygen, thus preventing the complete decomposition of the marine deposits underneath. The layers of sedimentary rocks become thicker, and heavier. Their pressure produces heat, which transforms the tiny carcasses into crude oil in a process that is still going on today.

From where does mineral oil originate?

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

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'.

At this moment that (1)/ terrible door burst noisily open and (2)/ banged for the wall. (3)/No Error (4)

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

Give somebody a ring

By using which foam the Researchers from Indian Institute of Technology – Bombay have made a low cost piezo resistive vibration sensor?

___________ is a condition in which there is a deficiency of red cells or of haemoglobin in the blood.

LRS is a facility provided by the Reserve Bank of India for all the resident individuals to freely remit a certain amount in terms of US dollar every financial year for a permissible set of current or capital account transactions. Here ‘LRS’ stands for ____.

In April 2017, to address growing unemployment, which country has abolished the 457 Visa Programme used by thousands of temporary foreign workers, a majority of them Indians?