RRB Group D — Set 12

Q: Which of the following acids is present in sour milk or curd?

Lactic acid. Lactic acid is formed during the fermentation of lactose in milk. It gives curd its characteristic sour taste. This acid is also produced in human muscles during intense exercise.

Q: The Ghoomar dance form is primarily associated with which Indian state?

Rajasthan. Ghoomar is a traditional folk dance of Rajasthan performed by women. It involves graceful twirling movements in colorful flowing skirts. It was originally developed by the Bhil tribe to worship Goddess Saraswati.

Q: Which layer of the atmosphere contains the Ozone layer?

Stratosphere. The Ozone layer is located in the lower portion of the Stratosphere. It absorbs most of the Sun's harmful ultraviolet radiation. Depletion of this layer is caused by chemicals like Chlorofluorocarbons.

Q: Who was the first Indian to win a Nobel Prize?

Rabindranath Tagore. Rabindranath Tagore won the Nobel Prize in Literature in 1913. He was awarded for his collection of poems titled Gitanjali. He was the first non-European to receive this honor.

Q: What is the common name for Sodium Bicarbonate?

Baking Soda. Sodium Bicarbonate is widely known as Baking Soda in households. Its chemical formula is NaHCO3. It is commonly used in baking as a leavening agent to make dough rise.

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Which of the following acids is present in sour milk or curd?

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Correct Answer: A. Lactic acid

Lactic acid is formed during the fermentation of lactose in milk. It gives curd its characteristic sour taste. This acid is also produced in human muscles during intense exercise.

The Ghoomar dance form is primarily associated with which Indian state?

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Correct Answer: B. Rajasthan

Ghoomar is a traditional folk dance of Rajasthan performed by women. It involves graceful twirling movements in colorful flowing skirts. It was originally developed by the Bhil tribe to worship Goddess Saraswati.

Which layer of the atmosphere contains the Ozone layer?

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Correct Answer: C. Stratosphere

The Ozone layer is located in the lower portion of the Stratosphere. It absorbs most of the Sun's harmful ultraviolet radiation. Depletion of this layer is caused by chemicals like Chlorofluorocarbons.

Who was the first Indian to win a Nobel Prize?

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Correct Answer: D. Rabindranath Tagore

Rabindranath Tagore won the Nobel Prize in Literature in 1913. He was awarded for his collection of poems titled Gitanjali. He was the first non-European to receive this honor.

What is the common name for Sodium Bicarbonate?

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Correct Answer: A. Baking Soda

Sodium Bicarbonate is widely known as Baking Soda in households. Its chemical formula is NaHCO3. It is commonly used in baking as a leavening agent to make dough rise.

In which city is the 'Gateway of India' located?

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Correct Answer: B. Mumbai

The Gateway of India is a famous historical monument located in Mumbai. It was built to commemorate the visit of King George V and Queen Mary to India. It faces the Arabian Sea at the Apollo Bunder area.

Which organ in the human body produces bile juice?

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Correct Answer: C. Liver

The Liver produces bile juice which helps in the digestion of fats. Although produced in the liver, bile is stored in the gallbladder. It is the largest gland in the human body.

Which planet is known as the 'Morning Star' or 'Evening Star'?

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Correct Answer: D. Venus

Venus is often visible in the early morning or evening sky. It is the brightest natural object in Earth's night sky after the Moon. It is also known as Earth's twin due to similar size.

Who was the first Governor-General of Bengal?

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Correct Answer: A. Warren Hastings

Warren Hastings became the first Governor-General of Bengal in 1773. He was appointed following the Regulating Act of 1773. He played a key role in consolidating British power in India.

Which instrument is used to measure atmospheric pressure?

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Correct Answer: B. Barometer

A Barometer is used to measure the pressure of the atmosphere. Mercury is commonly used in traditional barometers for this purpose. A sudden fall in reading usually indicates an approaching storm.

The Kaziranga National Park is famous for which animal?

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Correct Answer: C. One-horned Rhinoceros

Kaziranga is home to the world's largest population of One-horned Rhinoceroses. It is a UNESCO World Heritage site located in the state of Assam. The park is situated on the banks of the Brahmaputra River.

Which Fundamental Right was described by Dr. Ambedkar as the 'Heart and Soul' of the Constitution?

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Correct Answer: D. Right to Constitutional Remedies

Article 32 provides the Right to Constitutional Remedies for citizens. It allows individuals to move the Supreme Court for the enforcement of fundamental rights. Dr. Ambedkar considered it the most important article.

What is the chemical name of Vitamin B1?

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Correct Answer: A. Thiamine

Thiamine is the chemical name for Vitamin B1. Its deficiency leads to a disease known as Beriberi. It is essential for glucose metabolism and nerve function.

Which city is known as the 'Silicon Valley of India'?

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Correct Answer: B. Bengaluru

Bengaluru is called the Silicon Valley of India due to its status as the nation's leading IT exporter. It houses the headquarters of many major technology companies. It is the capital of the state of Karnataka.

Who founded the Brahmo Samaj in 1828?

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Correct Answer: C. Raja Ram Mohan Roy

Raja Ram Mohan Roy founded the Brahmo Samaj to reform Hindu society. He campaigned against social evils like Sati and child marriage. He is often called the 'Father of Modern India'.

Which country won the first-ever FIFA World Cup in 1930?

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Correct Answer: D. Uruguay

Uruguay hosted and won the first FIFA World Cup in 1930. They defeated Argentina in the final match held in Montevideo. Only 13 teams participated in this inaugural tournament.

What is the SI unit of electric current?

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Correct Answer: A. Ampere

The Ampere is the base unit of electric current in the SI system. It is named after the French physicist André-Marie Ampère. One ampere is equal to one coulomb of charge flowing per second.

Which Indian state shares the longest border with Myanmar?

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Correct Answer: B. Arunachal Pradesh

Arunachal Pradesh shares a border of about 520 km with Myanmar. A total of four Indian states share an international boundary with Myanmar. The other states are Nagaland, Manipur, and Mizoram.

Who was the author of the book 'Indica'?

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Correct Answer: C. Hiuen Tsang

Hiuen Tsang is the correct answer to this question. This is an important fact from the General Knowledge and Current Affairs syllabus frequently tested in Indian competitive examinations such as SSC CGL, RRB NTPC, and state-level PSC exams. A thorough understanding of Hiuen Tsang and related topics will help candidates score well in the GK section. Regular revision of such key facts is highly recommended for exam preparation.

Which article of the Constitution deals with the 'Abolition of Untouchability'?

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Correct Answer: D. Article 17

Article 17 abolishes 'Untouchability' and forbids its practice in any form. It is a significant provision to ensure social equality and dignity. Its enforcement is mandatory under the law.

What is the chemical formula of Marble?

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Correct Answer: A. CaCO3

Marble is a metamorphic rock composed mainly of Calcium Carbonate. Its chemical formula is CaCO3. Limestone and chalk also have the same chemical composition.

Which is the largest gland in the human body?

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Correct Answer: B. Liver

The Liver is the largest and heaviest internal organ in humans. It performs hundreds of vital functions including detoxification and protein synthesis. It weighs approximately 1.5 kilograms in an adult.

The 'Dandi March' was started by Gandhiji from which place?

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Correct Answer: C. Wardha

Wardha is the correct answer to this question. This is an important fact from the General Knowledge and Current Affairs syllabus frequently tested in Indian competitive examinations such as SSC CGL, RRB NTPC, and state-level PSC exams. A thorough understanding of Wardha and related topics will help candidates score well in the GK section. Regular revision of such key facts is highly recommended for exam preparation.

Which desert is the largest hot desert in the world?

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Correct Answer: D. Sahara Desert

The Sahara Desert is the largest hot desert and covers most of North Africa. It is nearly as large as China or the United States. Antarctica is the largest desert overall, but it is a cold desert.

In which state is the Hirakud Dam located?

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Correct Answer: A. Odisha

Hirakud Dam is built across the Mahanadi River in Odisha. It is one of the longest earthen dams in the world. It was the first major multipurpose river valley project after India's independence.

What is the tenure of the Chief Election Commissioner of India?

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Correct Answer: B. 6 years

The Chief Election Commissioner serves for 6 years or until the age of 65. This is specified to ensure the independence of the Election Commission. They are appointed by the President of India.

Which gas is known as 'Laughing Gas'?

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Correct Answer: C. Nitrous oxide

Nitrous oxide (N2O) is commonly known as laughing gas due to its euphoric effects. It is used in dentistry and surgery for its anesthetic properties. It is a colorless and non-flammable gas.

Who was the first woman to climb Mount Everest?

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Correct Answer: D. Junko Tabei

Junko Tabei of Japan was the first woman to reach the summit of Mount Everest in 1975. Bachendri Pal was the first Indian woman to achieve this feat in 1984. Tabei was also the first woman to climb the Seven Summits.

Which pigment gives green color to the leaves of plants?

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Correct Answer: A. Chlorophyll

Chlorophyll is a green pigment found in the chloroplasts of plants. It is essential for the process of photosynthesis to capture sunlight. It absorbs light primarily in the blue and red regions.

The headquarters of the World Health Organization (WHO) is in?

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Correct Answer: B. Geneva

The WHO headquarters is located in Geneva, Switzerland. It was established on April 7, 1948, which is now celebrated as World Health Day. It is a specialized agency of the United Nations.

Which ruler is known as the 'Napoleon of India'?

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Correct Answer: C. Samudragupta

Historian V.A. Smith called Samudragupta the 'Napoleon of India' due to his military conquests. He was a great ruler of the Gupta dynasty. His achievements are mentioned in the Allahabad Pillar inscription.

How many players are there in a standard Basketball team on the court?

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Correct Answer: D. 5

A standard basketball game is played with two teams of 5 players each on the court. The game was invented by Dr. James Naismith in 1891. Points are scored by shooting the ball through a high hoop.

What is the primary constituent of Natural Gas?

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Correct Answer: A. Methane

Methane (CH4) makes up about 70-90% of natural gas. It is the simplest alkane and a powerful greenhouse gas. Natural gas is used as a fuel for heating and electricity generation.

Which state has the lowest population density in India according to the 2011 Census?

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Correct Answer: B. Arunachal Pradesh

Arunachal Pradesh has the lowest population density with only 17 persons per sq km. Delhi has the highest density among Union Territories. Bihar has the highest density among Indian states.

Who wrote the national anthem of Bangladesh, 'Amar Shonar Bangla'?

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Correct Answer: C. Rabindranath Tagore

Rabindranath Tagore wrote the national anthems of both India and Bangladesh. 'Amar Shonar Bangla' was written in 1905 during the partition of Bengal. He is the only person to have written anthems for two nations.

Which part of the eye controls the amount of light entering it?

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Correct Answer: D. Iris

The Iris is the colored part of the eye that regulates the size of the pupil. It contracts or expands to control the light intensity. This mechanism protects the retina from damage by bright light.

What is the chemical symbol for Silver?

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Correct Answer: A. Ag

The chemical symbol for Silver is Ag, derived from its Latin name 'Argentum'. Ag (Silver) has atomic number 47 and is a lustrous transition metal. The symbol Ag comes from the Latin word Argentum, which was the name used by ancient Romans for silver. Silver (Ag) has the highest electrical and thermal conductivity of all metals.

In which year did the Jallianwala Bagh massacre take place?

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Correct Answer: B. 1919

The massacre occurred on April 13, 1919, in Amritsar. General Dyer ordered troops to fire on a peaceful crowd gathered for Baisakhi. This event was a turning point in the Indian independence struggle.

Which plan is known as the 'Mountbatten Plan'?

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Correct Answer: A. The plan for the partition of India

Lord Mountbatten proposed the plan for the partition of India and Pakistan on June 3, 1947. It is also known as the June 3rd Plan. It led to the enactment of the Indian Independence Act 1947.

What is the capital of the Andaman and Nicobar Islands?

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Correct Answer: D. Port Blair

Port Blair is the capital and largest city of the Andaman and Nicobar Islands. It is located on the South Andaman Island. It is famous for the historic Cellular Jail.