Practise UPSC MCQs with explanations

Which one of the following is an artificial lake?

Which of the following led to the introduction of English Education in India? 1. Charter Act of 1813 2. General Committee of Public Instruction, 1823 3. Orientalist and Anglicist Controversy Select the correct answer using the code given below:

Which one of the following statements does not apply to the system of Subsidiary Alliance introduced by Lord Wellesley?

With reference to Indian history, who among the following is a future Buddha, yet to come to save the world?

Which one of the following foreign travellers elaborately discussed about diamonds and diamond mines of India?

With reference to the cultural history of India, consider the following statements: 1. White marble was used in making Buland Darwaza and Khankah at Fatehpur Sikri. 2. Red sandstone and marble were used in making Bara Imambara and Rumi Darwaza at Lucknow. Which of the statements given above is/are correct?

With reference to the religious practices in India, the "Sthanakvasi" sect belongs to

Who among the following were the founders of the "Hind Mazdoor Sabha" established in 1948?

Which one of the following is a very significant aspect of the Champaran Satyagraha?

The staple commodities of export by the English East India Company from Bengal in the middle of the 18th century were

With reference to solar power production in India, consider the following statements: 1. India is the third largest in the world in the manufacture of silicon wafers used in photovoltaic units. 2. The solar power tariffs are determined by the Solar Energy Corporation of India. Which of the statements given above is/are correct?

When the alarm of your smartphone rings in the morning, you wake up and tap it to stop the alarm which causes your geyser to be switched on automatically. The smart mirror in your bathroom shows the day's weather and also indicates the level of water in your overhead tank. After you take some groceries from your refrigerator for making breakfast, it recognises the shortage of stock in it and places an order for the supply of fresh grocery items. When you step out of your house and lock the door, all lights, fans, geysers and AC machines get switched off automatically. On your way to office, your car warns you about traffic congestion ahead and suggests an alternative route, and if you are late for a meeting, it sends a message to your office accordingly. In the context of emerging communication technologies, which one of the following terms best applies to the above scenario?

Which of the following statements best describes "carbon fertilization"?

Consider the following pairs (Terms sometimes seen in news — Context/Topic): 1. Belle II experiment — Artificial Intelligence 2. Blockchain technology — Digital/Cryptocurrency 3. CRISPR - Cas9 — Particle Physics Which of the pairs given above is/are correctly matched?

With reference to the Genetically Modified mustard (GM mustard) developed in India, consider the following statements: 1. GM mustard has the genes of a soil bacterium that give the plant the property of pest-resistance to a wide variety of pests. 2. GM mustard has the genes that allow the plant cross-pollination and hybridization. 3. GM mustard has been developed jointly by the IARI and Punjab Agricultural University. Which of the statements given above is/are correct?

Consider the following phenomena: 1. Light is affected by gravity. 2. The Universe is constantly expanding. 3. Matter warps its surrounding space-time. Which of the above is/are the prediction/predictions of Albert Einstein's General Theory of Relativity, often discussed in media?

With reference to the Indian Regional Navigation Satellite System (IRNSS), consider the following statements: 1. IRNSS has three satellites in geostationary and four satellites in geosynchronous orbits. 2. IRNSS covers entire India and about 5500 sq. km beyond its borders. 3. India will have its own satellite navigation system with full global coverage by the middle of 2019. Which of the statements given above is/are correct?

The term "sixth mass extinction/sixth extinction" is often mentioned in the news in the context of the discussion of

With reference to the circumstances in Indian agriculture, the concept of "Conservation Agriculture" assumes significance. Which of the following fall under the Conservation Agriculture? 1. Avoiding the monoculture practices 2. Adopting minimum tillage 3. Avoiding the cultivation of plantation crops 4. Using crop residues to cover soil surface 5. Adopting spatial and temporal crop sequencing/crop rotations Select the correct answer using the code given below:

The terms 'WannaCry, Petya and EternalBlue' sometimes mentioned in the news recently are related to