RRB Group D — Set 26

Q: What is the SI unit of the power of a lens?

Dioptre. The power of a lens is measured in Dioptre. It is defined as the reciprocal of the focal length in meters. Convex lenses have positive power while concave lenses have negative power.

Q: Who was the first Tirthankara of Jainism?

Rishabhdev. Rishabhdev is considered the first of the twenty-four Tirthankaras in Jainism. He is also known as Adinatha in various religious texts. His symbol is the bull.

Q: Which Indian state is the largest producer of Coffee?

Karnataka. Karnataka accounts for more than 70% of the total coffee production in India. The major coffee-growing regions include Kodagu and Chikmagalur. Coffee was first introduced in India at Baba Budan Giri.

Q: What is the maximum strength of members in the Lok Sabha as per the Constitution?

550. The maximum strength of the Lok Sabha is fixed at 550 members. Out of these, 530 members represent the states and 20 represent Union Territories. Previously, there was a provision for two Anglo-Indian members which was later removed.

Q: Who composed the national song of India, 'Vande Mataram'?

Bankim Chandra Chattopadhyay. Bankim Chandra Chattopadhyay wrote the song in his famous novel Anandamath. It was adopted as the national song of India in 1950. The song played a vital role in the Indian independence movement.

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What is the SI unit of the power of a lens?

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Correct Answer: A. Dioptre

The power of a lens is measured in Dioptre. It is defined as the reciprocal of the focal length in meters. Convex lenses have positive power while concave lenses have negative power.

Who was the first Tirthankara of Jainism?

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Correct Answer: B. Rishabhdev

Rishabhdev is considered the first of the twenty-four Tirthankaras in Jainism. He is also known as Adinatha in various religious texts. His symbol is the bull.

Which Indian state is the largest producer of Coffee?

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Correct Answer: C. Karnataka

Karnataka accounts for more than 70% of the total coffee production in India. The major coffee-growing regions include Kodagu and Chikmagalur. Coffee was first introduced in India at Baba Budan Giri.

What is the maximum strength of members in the Lok Sabha as per the Constitution?

💡

Correct Answer: D. 550

The maximum strength of the Lok Sabha is fixed at 550 members. Out of these, 530 members represent the states and 20 represent Union Territories. Previously, there was a provision for two Anglo-Indian members which was later removed.

Who composed the national song of India, 'Vande Mataram'?

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Correct Answer: A. Bankim Chandra Chattopadhyay

Bankim Chandra Chattopadhyay wrote the song in his famous novel Anandamath. It was adopted as the national song of India in 1950. The song played a vital role in the Indian independence movement.

What is the chemical formula of Bleaching Powder?

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Correct Answer: B. CaOCl2

The chemical formula for bleaching powder is Calcium Hypochlorite or CaOCl2. It is produced by the action of chlorine gas on dry slaked lime. It is commonly used as a disinfectant and for bleaching textiles.

Who was the founder of the Satavahana dynasty?

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Correct Answer: C. Simuka

Simuka was the founder of the Satavahana dynasty which ruled the Deccan region. He established the kingdom after the decline of the Mauryan Empire. The dynasty is known for issuing coins made of lead.

Which planet in the solar system currently has the highest number of moons?

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Correct Answer: D. Saturn

Saturn has surpassed Jupiter as the planet with the most discovered moons. Recent astronomical findings have identified a large number of small satellites orbiting it. These moons vary greatly in size and composition.

Which constitutional amendment reduced the voting age from 21 to 18 years?

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Correct Answer: A. 61st Amendment

The 61st Constitutional Amendment Act of 1988 reduced the voting age for elections. It was implemented to encourage greater participation of the youth in the democratic process. This change applied to both Lok Sabha and Legislative Assembly elections.

Who formulated the Universal Law of Gravitation?

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Correct Answer: B. Isaac Newton

Sir Isaac Newton presented the law of universal gravitation in his work Principia Mathematica. The law states that every mass attracts every other mass in the universe. Gravitational force is inversely proportional to the square of the distance between objects.

What is the chemical name of Vitamin B12?

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Correct Answer: C. Cyanocobalamin

Cyanocobalamin is the scientific name for Vitamin B12, which contains the metal cobalt. It is essential for the formation of red blood cells and neurological function. This vitamin is primarily found in animal-based food products.

Who was the founder of the Sikh religion?

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Correct Answer: D. Guru Nanak Dev

Guru Nanak Dev was the first of the ten Sikh Gurus and the founder of Sikhism. He preached the message of one God and equality for all human beings. His teachings are preserved in the holy scripture, Guru Granth Sahib.

The river Tapti originates from which mountain range?

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Correct Answer: A. Satpura Range

The Tapti river originates in the Satpura Range in the Multai district of Madhya Pradesh. It is one of the major rivers of peninsular India that flows from east to west. The river ultimately empties into the Arabian Sea through the Gulf of Khambhat.

The Eighth Schedule of the Indian Constitution is related to which of the following?

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Correct Answer: B. Official Languages

The Eighth Schedule currently recognizes 22 official languages in India. Originally, there were only 14 languages included in this schedule. Languages like Bodo, Dogri, Maithili, and Santhali were added by later amendments.

What is the full form of the banking term 'ATM'?

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Correct Answer: C. Automated Teller Machine

ATM stands for Automated Teller Machine, which allows users to perform financial transactions without a human clerk. It provides services like cash withdrawal, balance inquiry, and fund transfers. The first ATM was installed in London in 1967.

In which Indian state is the Bandipur National Park located?

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Correct Answer: D. Karnataka

Bandipur National Park is a prominent tiger reserve located in the state of Karnataka. It was established under Project Tiger in 1974 to protect the endangered species. It is part of the Nilgiri Biosphere Reserve.

Which acid is present in the stings of ants and stinging nettles?

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Correct Answer: A. Methanoic acid

Methanoic acid, also known as formic acid, causes the burning sensation after an insect sting. It is a simple carboxylic acid found naturally in many insects. Applying a mild base like baking soda can help neutralize the acid's effect.

In which year was the First Battle of Tarain fought?

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Correct Answer: B. 1191

The First Battle of Tarain was fought in 1191 between Prithviraj Chauhan and Muhammad Ghori. Prithviraj Chauhan emerged victorious in this first encounter. However, Ghori returned and won the Second Battle of Tarain in 1192.

Which is the longest canal in India?

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Correct Answer: C. Indira Gandhi Canal

The Indira Gandhi Canal is the longest canal in India, mainly serving the state of Rajasthan. It starts from the Harike Barrage at the confluence of the Satluj and Beas rivers. It has transformed the desert landscape into fertile agricultural land.

What is the minimum age required to become a member of the Rajya Sabha?

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Correct Answer: D. 30 years

A person must be at least 30 years old to qualify for a seat in the Rajya Sabha. For the Lok Sabha, the minimum age requirement is 25 years. The Rajya Sabha represents the states and Union Territories in the Parliament.

The speed of sound is maximum in which of the following media?

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Correct Answer: A. Solids

Sound travels fastest in solids because the particles are closely packed together. It travels slower in liquids and slowest in gases. Sound cannot travel through a vacuum at all.

Which city served as the second capital of the Gupta ruler Chandragupta II?

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Correct Answer: B. Ujjain

Ujjain was the second capital of Chandragupta II, also known as Vikramaditya. It was a major center for trade, religion, and literature during the Gupta period. His main capital was located at Pataliputra.

Which is the highest peak in the Western Ghats of India?

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Correct Answer: C. Anamudi

Anamudi is the highest peak in the Western Ghats and in South India. It is located in the Idukki district of Kerala. Its elevation is approximately 2,695 meters above sea level.

The classical dance form 'Kuchipudi' belongs to which Indian state?

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Correct Answer: D. Andhra Pradesh

Kuchipudi is a traditional dance-drama that originated in the village of Kuchipudi in Andhra Pradesh. It involves both singing and dancing by the performers. It is one of the eight major Indian classical dances.

Solder is an alloy of which two metals?

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Correct Answer: A. Lead and Tin

Solder is a fusible metal alloy used to create a permanent bond between metal workpieces. It primarily consists of lead and tin in varying proportions. It has a low melting point which makes it ideal for electronics.

In India, the 'Repo Rate' is determined and announced by which organization?

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Correct Answer: B. Reserve Bank of India

The Reserve Bank of India (RBI) sets the Repo Rate as part of its monetary policy. It is the rate at which the central bank lends money to commercial banks. It is used as a tool to control inflation and liquidity.

Who appoints the Judges of the High Courts in India?

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Correct Answer: C. President of India

The Judges of the High Court are appointed by the President of India. The President consults with the Chief Justice of India and the Governor of the concerned state. They hold office until the age of 62 years.

Where was the first Buddhist Council held after the death of Buddha?

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Correct Answer: D. Rajgriha

The first Buddhist Council was held at Rajgriha shortly after the Mahaparinirvana of Buddha. It was presided over by Mahakashyapa under the patronage of King Ajatashatru. The objective was to preserve the teachings of Buddha.

Which cell organelle is commonly referred to as the 'Protein Factory' of the cell?

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Correct Answer: A. Ribosomes

Ribosomes are responsible for the synthesis of proteins in all living cells. They can be found floating freely in the cytoplasm or attached to the endoplasmic reticulum. They translate genetic code into chains of amino acids.

In which state is the Lonar Lake, formed by a meteorite impact, located?

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Correct Answer: B. Maharashtra

Lonar Lake is a saline, alkaline lake located in the Buldhana district of Maharashtra. It was created by a meteorite impact during the Pleistocene Epoch. It is a notified National Geo-heritage Monument.

Which noble gas is found in the highest concentration in the Sun?

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Correct Answer: C. Helium

Helium is the second most abundant element in the Sun after hydrogen. It is produced through the process of nuclear fusion in the solar core. Helium was actually discovered in the Sun's spectrum before it was found on Earth.

Who founded the 'Satyashodhak Samaj' in 1873?

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Correct Answer: D. Jyotiba Phule

Jyotiba Phule founded the Satyashodhak Samaj to advocate for the rights of lower castes and women. He worked extensively for the education of the oppressed classes in Maharashtra. He is also the author of the famous book Gulamgiri.

The 'Directive Principles of State Policy' are mentioned in which Part of the Indian Constitution?

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Correct Answer: A. Part IV

Part IV of the Constitution contains Articles 36 to 51, which outline the Directive Principles. These principles are non-justiciable but fundamental to the governance of the country. They aim to establish a social and economic democracy.

On which date is International Women's Day observed annually?

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Correct Answer: B. 8 March

International Women's Day is celebrated on 8 March to honor the achievements of women globally. It also serves as a call to action for accelerating gender equality. The first official celebration took place in 1911.

Which is the largest river delta in the world?

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Correct Answer: C. Sunderbans Delta

The Sunderbans Delta is the largest delta, formed by the Ganga, Brahmaputra, and Meghna rivers. It covers a vast area across West Bengal in India and Bangladesh. It is famous for its mangrove forests and unique biodiversity.

Galena is an important ore of which metal?

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Correct Answer: D. Lead

Galena is the primary mineral ore of lead, chemically known as lead sulfide. it is found in metamorphic and sedimentary rocks globally. Lead is widely used in batteries, radiation shielding, and construction.

In which year was the Gandhi-Irwin Pact signed?

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Correct Answer: A. 1931

The Gandhi-Irwin Pact was signed on 5 March 1931 between Mahatma Gandhi and Lord Irwin. It marked the end of the first phase of the Civil Disobedience Movement. As per the pact, the British agreed to release political prisoners.

The 'Blue Revolution' in India is associated with the growth of which sector?

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Correct Answer: B. Fish Production

The Blue Revolution refers to the rapid increase in the production of fish and marine products. It aims to improve the economic condition of fishermen and increase exports. It was launched during the Seventh Five-Year Plan.

The Hampi monuments, a UNESCO World Heritage site, are located in which state?

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Correct Answer: C. Karnataka

Hampi was the capital of the Vijayanagara Empire in the 14th century. It is located on the banks of the Tungabhadra River in Karnataka. The site is famous for its stunning stone architecture and temples.

What is the chemical name of Vitamin D?

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Correct Answer: D. Calciferol

Calciferol is the chemical name for Vitamin D, which helps the body absorb calcium. It can be synthesized by the human body when the skin is exposed to sunlight. A deficiency of Vitamin D can cause rickets in children.