CDS Previous Year GK Questions

Roasting means heating a sulphide ore strongly in plenty of air, so that the sulphide turns into an oxide and the sulphur escapes as sulphur dioxide gas.

Kwashiorkor is caused by a severe lack of protein in the diet, even when the child gets some calories from starchy food.

Mature red blood cells, or erythrocytes, lose their nucleus before they enter the blood. Losing the nucleus, and the mitochondria too, leaves more room for haemoglobin, the iron-rich protein that carries oxygen, and gives the cell its flexible biconcave disc shape, which lets it squeeze through narrow capillaries.

It is the main growth inhibitor among plant hormones and works against the growth promoters.

For a lens, magnification m is the image height divided by the object height, which also equals v divided by u. A plus sign means the image is erect and virtual, and a value of 2 means it is twice as tall as the object.

It is the advance grant the Lok Sabha makes so that the government can keep spending from 1 April until the full budget is passed.

A unicorn is a startup that is not listed on the stock market and is valued at more than one billion US dollars.

The expert group headed by Suresh Tendulkar, which reported in 2009, recommended measuring poverty through MPCE on the Mixed Reference Period.

When the government runs a deficit, it borrows heavily from the same pool of savings that private firms use, so interest rates rise and private investment falls.

Tsomgo Lake, also called Changu Lake, lies in East Sikkim, about 40 km from Gangtok on the road to Nathu La.

When rivers leave the Himalayas and reach the plains, their speed drops suddenly and they drop the heaviest load first, pebbles and boulders, in the Bhabar belt.

Going south from Gulbarga you first cross the Krishna and then reach the Tungabhadra, on whose south bank Hampi stands.

All three statements are true. Statement 1: the size of an eruption is rated on the Volcanic Explosivity Index, a scale from 0 to 8 based on the volume of material thrown out and the height of the eruption column; each step up means roughly ten times more material.

The Tropic of Cancer crosses eight Indian states, and only two of them touch the sea. Running at about 23.5 degrees north, it passes from west to east through Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura and Mizoram.

Basavanna led the Virashaiva or Lingayat movement in Karnataka in the twelfth century. He served as a minister at the court of King Bijjala at Kalyana.

Signed in May 1782 between the East India Company and the Marathas, it ended the First Anglo-Maratha War that had begun in 1775.

The Lahore session of the Indian National Congress, presided over by Jawaharlal Nehru, adopted the Purna Swaraj or complete independence resolution.

The Prayaga Prashasti, better known as the Allahabad Pillar Inscription, is a long Sanskrit poem in his praise. It was composed by Harishena, his court poet and minister, and engraved on an old Ashokan pillar now kept in the Allahabad (Prayagraj) Fort.

At Colachel in August 1741, Marthanda Varma of Travancore defeated the Dutch East India Company. It was one of the rare times an Indian ruler decisively beat a European power in open battle, and it ended Dutch hopes of expanding on the Malabar coast.

Krishnadevaraya wrote this Telugu poem, and a part of it sets out his ideas on how a king should rule.