Delhi 2022 Previous Year GK Questions with Answers

The correct answer is C, the number of holes equals the number of electrons. In an intrinsic, that is a chemically pure, semiconductor every free electron is produced by breaking a covalent bond, and breaking a bond leaves behind exactly one hole, so electrons and holes are created strictly in pairs and their concentrations must be equal. Option A is wrong because a product of two concentrations cannot equal a bare number one; the product is fixed by temperature and the band gap, not by unity. Option B is wrong because holes can outnumber electrons only in a p-type crystal, which needs a trivalent dopant. Option D is wrong because electrons outnumber holes only in an n-type crystal, which needs a pentavalent dopant. Equal numbers are therefore the signature of the pure crystal, and any inequality means doping has taken place.

The correct answer is B, Reserved forests. Indian forests are classified administratively into reserved, protected and unclassed forests, and the first two together are described as the permanent forest estate, that is land maintained permanently for timber and other forest produce and for the protection of soil and water. Reserved forests are the most valuable of the three and enjoy the strictest protection, with grazing and cultivation prohibited or closely regulated. Option A, unprotected forests, is not one of the recognised administrative classes at all. Option C, unclassed forests, covers the remaining wooded land, a great deal of it owned by communities and private persons in the north-east and in Gujarat, and it lies outside the permanent estate. Option D, community forests, again describes ownership rather than an administrative class, and such land usually falls within the unclassed category.

The correct answer is D, the Pancheshwar Main Dam. It is the centrepiece of the Pancheshwar Multipurpose Project, planned on the Mahakali river, which forms part of the boundary between India and Nepal, and it is to be built and operated jointly by the two countries under the Mahakali Treaty for power, irrigation and flood control. Option A, the Tehri Dam, stands on the Bhagirathi in Uttarakhand and is the tallest dam in India, but it lies well inside Indian territory. Option B is wrong because the Son is a tributary of the Ganga flowing through Madhya Pradesh, Jharkhand and Bihar, nowhere near the Nepal border. Option C, the Rajghat Dam, is on the Betwa river on the border of Madhya Pradesh and Uttar Pradesh, an interstate rather than an international project.

The correct answer is A, gold. Ductility is the property of being drawn into a wire, and gold is the most ductile metal known; it is also the most malleable, so a very small quantity can be beaten into an extremely thin sheet or drawn into a very long wire. Option C, silver, is the next most ductile and is the best conductor of both heat and electricity, which is why it is easy to confuse the two superlatives; remember that silver leads in conduction while gold leads in ductility and malleability. Option B, copper, is ductile enough to be drawn into the wires used in household wiring, but far less so than gold. Option D, iron, is ductile when hot but comparatively hard and is valued for strength rather than for being drawn out.

The correct answer is C, the SAPAP model. The South Asia Poverty Alleviation Programme model is called the international model of self help group formation because it was taken up with the support of the United Nations Development Programme and followed the same design across South Asian countries, beginning in India in the districts of Andhra Pradesh. It builds a three-tier structure, the group of poor women at the bottom, a village organisation above it and a federation at the mandal level, with savings first and credit afterwards.

Option A, the CDF model, refers to the Cooperative Development Foundation work in Andhra Pradesh, which is a cooperative thrift model. Option B, the SEWA model, grew out of the Self Employed Women's Association of Ahmedabad and its own bank. Option D, DWCRA, the Development of Women and Children in Rural Areas, was a government programme of 1982 and is the domestic, not the international, model.

The correct answer is B, Kisan Credit Card. The Kisan Credit Card scheme was introduced in 1998 on the recommendation of the R V Gupta Committee and is worked by commercial banks, regional rural banks and cooperative banks. It gives a farmer a single revolving limit for seeds, fertiliser, labour and other crop expenses, valid for several years with a yearly review, so that he need not apply afresh every season. The limit has since been extended to animal husbandry and fisheries, and short-term crop loans under it carry an interest subvention with a further rebate for prompt repayment.

Option A, Krishi Credit Card, uses the Hindi word for agriculture and is the closest trap, but the scheme is named after the farmer, the kisan. Options C and D both end in Corporation, which would make the name that of an institution rather than of a credit instrument, so neither can be right.

The correct answer is C, 110010111. Octal has base 8, and because 2 raised to the power 3 equals 8, every octal digit expands into exactly three binary bits. Take the digits of 627 one at a time. The digit 6 becomes 110, the digit 2 becomes 010 and the digit 7 becomes 111. Writing them in the same order gives 110 010 111, that is 110010111. A quick check works the other way: grouping 110010111 in threes from the right gives 110, 010 and 111, which read back as 6, 2 and 7. Option A is wrong because 111010110 reads as 7, 2 and 6, which is octal 726. Option B is wrong because 110010110 ends in 110 and so reads as 626. Option D is wrong because 011010111 reads as 3, 2 and 7, that is octal 327.

The correct answer is D, Khushwant Singh. The End of India, published in 2003, is his book of essays written in English on communal violence and the danger it poses to the idea of India. He is better remembered for the novel Train to Pakistan, a story of Partition, and for Delhi and his newspaper columns.

Option A, Dr. Manmohan Singh, was an economist and Prime Minister whose name is tied to policy papers rather than to such a book. Option B, Salman Rushdie, wrote Midnight's Children, which won the Booker Prize in 1981, and The Satanic Verses. Option C, Shashi Tharoor, wrote The Great Indian Novel and An Era of Darkness, and because his books also argue about India's past, he is the strongest distractor here. Tie the word Partition, and this title, to Khushwant Singh.

The correct answer is A, Tughlaq dynasty. The Khalji dynasty ended in 1320 when Khusrau Khan, who had seized the throne after Mubarak Shah Khalji, was defeated by Ghazi Malik, the governor of Dipalpur. Ghazi Malik took the title Ghiyasuddin Tughlaq and founded the Tughlaq dynasty, which ruled until 1414 and was the longest-lived of the five. Option B is wrong because no Rajput dynasty ruled Delhi after 1192; the Chahamana or Chauhan rule under Prithviraj III ended before the Sultanate began. Option C is wrong because the Sayyid dynasty came later, founded by Khizr Khan in 1414 after Timur's invasion had broken Tughlaq power. Option D is wrong because the Lodi dynasty, founded by Bahlul Khan Lodi in 1451, was the last of the five and followed the Sayyids, not the Khaljis.

The correct answer is A, Both I and II. Statement one is correct because the securities transaction tax is charged on the purchase and sale of securities on a recognised stock exchange and is borne by the investor who makes the transaction; the burden cannot be passed on to anybody else, which is the test of a direct tax, and it is administered by the Central Board of Direct Taxes. Statement two is correct because value added tax was levied by the states on the sale of goods at each stage of the chain, with credit for the tax paid on inputs, and the dealer recovered it from the buyer in the price, which is the test of an indirect tax; VAT has since been subsumed into GST for most goods.

Option B rejects the first statement, option D rejects the second, and option C rejects both, so all three miss one or other of these classifications. Remember the rule and not the list: if the payer can shift the burden, the tax is indirect.

The correct answer is C, issuance of treasury bills. A receipt is capital if it either creates a liability for the government or reduces an asset it holds. A treasury bill is a short-term borrowing instrument, so issuing it creates a liability that must be repaid, and it is therefore classified as a capital receipt along with market loans, external loans, recovery of loans and disinvestment proceeds.

Option A, commercial revenue, is earned by government departments and undertakings from the sale of goods and services and neither creates a liability nor reduces an asset, so it is non-tax revenue. Option B, interest received on loans advanced by the government, is likewise recurring non-tax revenue. Option D, dividends and profits received from public sector undertakings and the Reserve Bank, is also non-tax revenue. All three are revenue receipts.

The correct answer is D, Tamil Nadu. Tamil Nadu is the first state in India to make rooftop rainwater harvesting structures compulsory for all houses and buildings across the state, through a law brought in 2003. The state depends heavily on the north-east monsoon and on groundwater, and Chennai faced severe water shortages, so collecting roof water and sending it into the ground became a priority. Rooftop harvesting collects rain from roofs and stores it in tanks or uses it to recharge wells and aquifers, which raises the water table. Option A is wrong because Kerala gets heavy rain and has promoted harvesting, but it was not the first to make it compulsory for every house. Option B is wrong because Gujarat is known for check dams and other water works, not for this first law. Option C is wrong because Rajasthan is known for traditional harvesting, such as the tankas of Bikaner and Phalodi, not for the first statewide law. Exam tip: Tamil Nadu was the first state to make rooftop rainwater harvesting compulsory (2003); tankas are Rajasthan's traditional underground tanks.

The correct answer is C, Both I and II. Atomicity is the number of atoms in one molecule of an element, and it is why we write nitrogen gas as N2 and not just N. Nitrogen gas exists as N2, two atoms joined by a strong triple bond, so it is diatomic, like oxygen, hydrogen and chlorine. Sulphur exists as S8, a crown-shaped ring of eight atoms, so it is polyatomic. Phosphorus, as P4, is tetra-atomic, ozone (O3) is triatomic, and noble gases such as helium and argon are monoatomic because they exist as single atoms. These examples are listed in the NCERT Class 9 chapter on atoms and molecules. Option A is wrong because it accepts only the first pair, though the sulphur pair is also right. Option B is wrong because both pairs are correct, so 'neither' cannot be the answer. Option D is wrong because it accepts only the sulphur pair and leaves out nitrogen, which is correctly diatomic. Exam tip: He mono, N2 di, O3 tri, P4 tetra, S8 poly.

The correct answer is D, f-block. The inner transition elements are the lanthanides and actinides, in which electrons fill the f-orbitals, so they form the f-block of the periodic table. They are placed in two separate rows at the bottom of the table so that the table does not become too wide. The lanthanides run from cerium to lutetium and are also called rare earth elements; the actinides run from thorium to lawrencium and are all radioactive. Uranium and plutonium, used in nuclear power, are actinides. Option A is wrong because the d-block holds the transition elements such as iron, copper and zinc, in groups 3 to 12. Option B is wrong because the p-block holds groups 13 to 18, including the halogens and the noble gases. Option C is wrong because the s-block holds groups 1 and 2, the alkali and alkaline earth metals. Exam tip: the d-block has the transition elements; the f-block has the inner transition elements, the lanthanides and actinides.

The correct answer is D, Granite. Granite forms when magma cools slowly deep inside the Earth's crust, so it is an intrusive or plutonic igneous rock. Slow cooling gives the minerals time to grow, which is why granite shows large, clearly visible grains of quartz, feldspar and mica. It is hard and long-lasting, so it is widely used in buildings, monuments and kitchen tops. Option A is wrong because sandstone is a sedimentary rock made of sand grains pressed and cemented together; the Red Fort in Delhi is built of red sandstone. Option B is wrong because slate is a metamorphic rock formed when shale is changed by heat and pressure. Option C is wrong because basalt is an extrusive igneous rock: lava cools quickly on the surface, giving fine grains, and the Deccan Traps are made of basalt. Exam tip: intrusive means it cools inside, slowly, with big crystals (granite); extrusive means it cools outside, fast, with fine grains (basalt).

The correct answer is B, Article 239. Article 239 says every Union Territory is administered by the President, acting through an administrator appointed by him with such designation as he thinks fit. That is why some Union Territories, such as Delhi, Ladakh and the Andaman and Nicobar Islands, have a Lieutenant Governor, while others have an Administrator. Article 239 opens Part VIII of the Constitution, which deals with Union Territories. Articles 239A and 239AA, added later, give legislatures to Puducherry and Delhi. Option A is wrong because Article 235 gives the High Court control over subordinate courts. Option C is wrong because Article 233 deals with the appointment of district judges by the Governor in consultation with the High Court. Option D is wrong because Article 234 deals with recruiting persons other than district judges to the judicial service of a state. Exam tip: Part VIII covers Union Territories in Articles 239 to 241, and Article 239AA is the special article for Delhi.

The correct answer is C, Aditya Nath Jha. He became the first Lieutenant Governor of Delhi in 1966 and held the post until January 1972. Before 1966, Delhi was run by a Chief Commissioner. The Delhi Administration Act, 1966 created an elected Metropolitan Council and raised the head of the administration to the rank of Lieutenant Governor. A. N. Jha, an ICS officer, had in fact been Delhi's last Chief Commissioner for a short while before taking up the new post. Today the Lieutenant Governor is the administrator of the National Capital Territory under Article 239AA and is appointed by the President. Option A is wrong because Krishan Chand held the post later, from 1974 to 1978, including the Emergency years. Option B is wrong because Baleshwar Prasad served from 1972 to 1974. Option D is wrong because M. C. Pimputkar came after Jha and served for only a few months in 1972. Exam tip: Delhi had Chief Commissioners until 1966; its first Lieutenant Governor was A. N. Jha.

The correct answer is B, Part-C States. Under the Government of Part C States Act, 1951, Delhi got its own Legislative Assembly and Council of Ministers. The first election was held in 1952, and Chaudhary Brahm Prakash became Delhi's first Chief Minister. The 1950 Constitution had sorted the units of India into Part A, B, C and D, and Part C covered small areas once run by Chief Commissioners, such as Delhi, Ajmer and Coorg. This arrangement ended when the States Reorganisation Act made Delhi a Union Territory from 1 November 1956, and its Assembly was abolished. Option A is wrong because Part B States were former princely states or their unions, headed by a Rajpramukh. Option C is wrong because Part D had only one unit, the Andaman and Nicobar Islands. Option D is wrong because Part A States were the former British provinces such as Bombay and Madras, headed by Governors. Exam tip: Delhi became a Part C State in 1951, a Union Territory in 1956, and an NCT with an Assembly under the 69th Amendment of 1991.

The correct answer is B, All-India War Memorial. India Gate was built as the All-India War Memorial to honour soldiers of the British Indian Army who died in the First World War and in the Third Anglo-Afghan War of 1919. It was designed by Sir Edwin Lutyens, the chief architect of New Delhi. The Duke of Connaught laid its foundation stone in 1921, and it was completed in 1931. The names of thousands of soldiers are carved on its walls. In 1972, after the 1971 war, the Amar Jawan Jyoti was added beneath the arch. Option A is wrong because the Afghan war is only one of the wars it remembers, and that was never its name. Option C is wrong because 'Archway of Delhi' is just a description, not an official name. Option D is wrong because the memorial honours the Indian soldiers of the British Indian Army, not only British soldiers. Exam tip: India Gate = All-India War Memorial, designed by Lutyens, built 1921–1931.