Delhi Police — Set 20

Correct Answer: B. Odisha

Odisha is the leading producer of bauxite in India, accounting for more than half of the country's total output. The Panchpatmali deposits in Koraput district are the most significant bauxite sources in the state. Bauxite is the primary ore used to produce aluminum.

Correct Answer: A. Dadabhai Naoroji

Dadabhai Naoroji, known as the 'Grand Old Man of India', was elected to the British House of Commons in 1892. He was a founding member of the Indian National Congress. He is famous for his 'Drain of Wealth' theory regarding British rule.

Correct Answer: B. Article 356

Article 356 allows the President to take over the administration of a state if the constitutional machinery fails. This is commonly referred to as President's Rule. It is imposed based on a report from the Governor of that state.

Correct Answer: C. Plaster of Paris

Plaster of Paris is chemically known as Calcium Sulfate Hemihydrate. It is produced by heating gypsum to a specific temperature. It is widely used in medical casts and for making decorative sculptures.

Correct Answer: B. Burari

Coronation Park is situated on Burari Road in North Delhi. It was the site of the Delhi Durbar of 1911, where King George V was proclaimed Emperor of India. A tall obelisk stands there to commemorate the historic event.

Correct Answer: B. 1885

The Indian National Congress was founded in December 1885. The first session was held in Bombay under the presidency of W.C. Bonnerjee. It was established by retired British officer A.O. Hume.

Correct Answer: B. Wular Lake

Wular Lake, located in Jammu and Kashmir, is the largest freshwater lake in India. It is formed by the Jhelum River. The lake is a vital habitat for many species of fish and migratory birds.

Correct Answer: C. 7

Pure water has a pH value of 7, which makes it chemically neutral. The pH scale ranges from 0 to 14, with values below 7 indicating acidity and above 7 indicating alkalinity. A pH of 7 means equal concentrations of hydrogen (H⁺) and hydroxide (OH⁻) ions. Pure water's neutral pH of 7 makes it an important reference point on the pH scale.

Correct Answer: A. Karnam Malleswari

Karnam Malleswari won a bronze medal in weightlifting at the 2000 Sydney Olympics. She became the first Indian woman to achieve this feat. She was later honored with the Rajiv Gandhi Khel Ratna award.

Correct Answer: C. Part IV

Part IV of the Indian Constitution contains the Directive Principles of State Policy from Article 36 to 51. These principles are non-justiciable but fundamental to the governance of the country. They aim to establish a social and economic democracy.

Correct Answer: B. Uttar Pradesh

Dudhwa National Park is situated in the Lakhimpur Kheri district of Uttar Pradesh. It is a part of the Dudhwa Tiger Reserve. The park is home to significant populations of tigers and swamp deer.

Correct Answer: D. O-

O negative (O-) blood group is known as the 'Universal Donor' because it can be donated to individuals of any ABO blood group without causing an adverse reaction. Since O- lacks A, B, and Rh (D) antigens, it is compatible with all blood types. The universal donor O- is especially critical in emergency situations. In contrast, the universal recipient blood group is AB positive.

Correct Answer: C. Bahadur Shah Zafar

Bahadur Shah Zafar was the symbolic leader of the 1857 revolt in Delhi. He was the last Mughal emperor. After the revolt failed, he was arrested by the British and exiled to Rangoon.

Correct Answer: C. Canberra

Canberra is the capital city of Australia, located in the Australian Capital Territory. It was chosen as the capital in 1908 as a compromise between Sydney and Melbourne. It is an entirely planned city.

Correct Answer: B. C.V. Raman

Sir C.V. Raman was awarded the Nobel Prize in Physics in 1930. He discovered that when light traverses a transparent material, some of the deflected light changes wavelength. National Science Day is celebrated in India on February 28 to mark this discovery.

Correct Answer: B. USA

The concept of a Preamble in the Indian Constitution was inspired by the Constitution of the USA. It serves as an introduction and outlines the basic philosophy and objectives of the Constitution. It states that the source of authority is 'We, the People of India'.

Correct Answer: B. Kanpur

Kanpur is widely known as the Leather City due to its numerous tanneries and leather product industries. It is a major industrial hub in Uttar Pradesh. The city is also famous for its textile industry.

Correct Answer: C. Methane

Methane (CH4) is the primary component of natural gas, usually making up about 70-90% of it. It is a clean-burning fossil fuel used for heating and electricity generation. Methane is also a potent greenhouse gas.

Correct Answer: A. 1905

The Partition of Bengal was announced in 1905 by Lord Curzon. This decision led to widespread protests and the birth of the Swadeshi Movement. The partition was eventually annulled in 1911.

Correct Answer: B. President

The Governor of a state is appointed by the President of India. A Governor holds office for a term of five years during the pleasure of the President. The role is primarily ceremonial, acting as a link between the Centre and the State.

Correct Answer: D. Pacific Ocean

The Pacific Ocean is the largest and deepest ocean on Earth. It covers more than 30% of the Earth's surface. The Mariana Trench, the deepest part of the world's oceans, is located here.

Correct Answer: A. Subhash Chandra Bose

Subhash Chandra Bose wrote 'The Indian Struggle' to document the Indian independence movement from 1920 to 1942. The book was banned by the British government during the colonial period. Bose was a charismatic leader who led the Indian National Army.

Correct Answer: C. Nitrogen/Argon

Electric bulbs are filled with Nitrogen or Argon gas to extend the life of the tungsten filament. The inert gases Nitrogen and Argon prevent the filament from oxidizing and burning prematurely. Without Nitrogen/Argon, the tungsten filament would quickly oxidize in the presence of any reactive gas. Modern bulbs typically use Argon (sometimes with Nitrogen) as the fill gas.

Correct Answer: B. Thiruvananthapuram

The Vikram Sarabhai Space Centre (VSSC) is located in Thiruvananthapuram, Kerala. It is the lead center of ISRO for the development of satellite launch vehicles. It is named after the father of the Indian space program.

Correct Answer: B. Right to Property

The Right to Property was removed from the list of Fundamental Rights in 1978. It was made a legal right under Article 300A. This was done to facilitate land reforms and social justice.

Correct Answer: C. Delhi

Lodi Gardens is a city park situated in New Delhi. It contains tombs of Sayyid and Lodi rulers, including Muhammad Shah and Sikandar Lodi. The park is a popular spot for morning walks and tourism.

Correct Answer: B. Marie Curie

Marie Curie was the first woman to receive a Nobel Prize, winning in Physics in 1903. She also became the first person to win a second Nobel Prize, this time in Chemistry in 1911. Her work on radioactivity remains foundational to science.

Correct Answer: B. Watt

The Watt is the SI unit of power, named after James Watt. One Watt is defined as the rate of doing work at one Joule per second. In electrical terms, it is the product of voltage and current.

Correct Answer: A. Odisha

The Konark Sun Temple is a 13th-century temple located in Odisha. It was built by King Narasimhadeva I of the Eastern Ganga Dynasty. It is designed in the shape of a massive chariot with 24 wheels.

Correct Answer: B. Iris

The iris is the colored part of the eye that surrounds the pupil. It controls the amount of light entering the eye by adjusting the size of the pupil. Eye color is determined by the pigmentation of the iris.

Correct Answer: A. Gopal Krishna Gokhale

Gopal Krishna Gokhale founded the Servants of India Society in Pune in 1905. The society's goal was to train Indians to devote their lives to the cause of the country. Members took vows to serve the nation and lead a simple life.

Correct Answer: C. Article 324

Article 324 provides for the establishment of the Election Commission of India. It has the authority for the direction and control of elections to Parliament and State Legislatures. It ensures the conduct of free and fair elections.

Correct Answer: B. Kerala

Kerala is famously known as the Spice Garden of India. It has been a major hub for spice trade for centuries, attracting traders from all over the world. Black pepper, cardamom, and cinnamon are widely grown here.

Correct Answer: B. Calcium Oxychloride

Calcium Oxychloride (CaOCl2) is the chemical name for bleaching powder. It is used as a disinfectant and for bleaching cotton and linen in the textile industry. It is produced by the action of chlorine gas on dry slaked lime.

Correct Answer: A. Chanakyapuri

The National Rail Museum is located in the Chanakyapuri area of New Delhi. It focuses on the rail heritage of India and houses many historic locomotives and carriages. The museum was opened to the public in 1977.

Correct Answer: B. Sardar Vallabhbhai Patel

Sardar Vallabhbhai Patel led the successful Bardoli Satyagraha against the unjust tax increase by the British. After this movement, the women of Bardoli gave him the title 'Sardar'. This victory made him a prominent national leader.

Correct Answer: B. Kosi

The Kosi River is known as the Sorrow of Bihar because of its frequent and devastating floods. It often changes its course, causing massive destruction to agricultural land and settlements. It is a major tributary of the Ganga.

Correct Answer: C. Silver

Silver is the best conductor of both heat and electricity among all metals. Copper is the second best and is more commonly used due to its lower cost. Diamond, a non-metal, is even better than silver at conducting heat.

Correct Answer: B. Sarojini Naidu

Sarojini Naidu was elected President of the Indian National Congress in 1925 at the Kanpur session. Annie Besant was the first woman President, but she was not Indian. Naidu was a leading figure in the Indian independence movement.

Correct Answer: C. 6 months

According to the Constitution, the gap between two sessions of Parliament cannot exceed six months. This ensures that Parliament meets at least twice a year. Usually, three sessions are held: Budget, Monsoon, and Winter sessions.