RRB Group D — Set 2

Q: Deficiency of which vitamin leads to the disease Scurvy?

Vitamin C. Scurvy is caused by a severe lack of Vitamin C in the daily diet. This condition leads to symptoms like bleeding gums, weakness, and skin rashes. Citrus fruits such as lemons and oranges are the best natural sources of this vitamin.

Q: According to Newton's Second Law of Motion, force is equal to the product of mass and which other quantity?

Acceleration. The second law states that force is the product of mass and acceleration, expressed as F=ma. It explains how the velocity of an object changes when it is subjected to an external force. This principle is fundamental to understanding classical mechanics in physics.

Q: The Battle of Plassey was fought in which year?

1757. The Battle of Plassey took place in 1757 between the British East India Company and the Nawab of Bengal. It is considered a turning point that paved the way for British rule in India. Robert Clive led the British forces to a decisive victory during this conflict.

Q: Which Articles of the Indian Constitution deal with the Fundamental Rights of citizens?

Articles 12 to 35. The Fundamental Rights in the Indian Constitution are covered under Articles 12 to 35, in Part III. These rights include the Right to Equality, Right to Freedom, Right against Exploitation, Right to Freedom of Religion, Cultural and Educational Rights, and the Right to Constitutional Remedies. The Fundamental Rights were inspired by the Bill of Rights of the United States Constitution.

Q: By what other name is 'Black Soil' commonly known in India?

Regur Soil. Black soil is widely known as Regur soil and is ideal for growing cotton crops. It is formed by the weathering of volcanic rocks and is highly moisture-retentive. This soil type is mostly found in the Deccan Trap region of India.

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Deficiency of which vitamin leads to the disease Scurvy?

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Correct Answer: C. Vitamin C

Scurvy is caused by a severe lack of Vitamin C in the daily diet. This condition leads to symptoms like bleeding gums, weakness, and skin rashes. Citrus fruits such as lemons and oranges are the best natural sources of this vitamin.

According to Newton's Second Law of Motion, force is equal to the product of mass and which other quantity?

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Correct Answer: B. Acceleration

The second law states that force is the product of mass and acceleration, expressed as F=ma. It explains how the velocity of an object changes when it is subjected to an external force. This principle is fundamental to understanding classical mechanics in physics.

The Battle of Plassey was fought in which year?

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Correct Answer: A. 1757

The Battle of Plassey took place in 1757 between the British East India Company and the Nawab of Bengal. It is considered a turning point that paved the way for British rule in India. Robert Clive led the British forces to a decisive victory during this conflict.

Which Articles of the Indian Constitution deal with the Fundamental Rights of citizens?

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Correct Answer: D. Articles 12 to 35

The Fundamental Rights in the Indian Constitution are covered under Articles 12 to 35, in Part III. These rights include the Right to Equality, Right to Freedom, Right against Exploitation, Right to Freedom of Religion, Cultural and Educational Rights, and the Right to Constitutional Remedies. The Fundamental Rights were inspired by the Bill of Rights of the United States Constitution.

By what other name is 'Black Soil' commonly known in India?

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Correct Answer: D. Regur Soil

Black soil is widely known as Regur soil and is ideal for growing cotton crops. It is formed by the weathering of volcanic rocks and is highly moisture-retentive. This soil type is mostly found in the Deccan Trap region of India.

What is the chemical symbol for the element Iron?

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Correct Answer: A. Fe

The symbol Fe comes from 'Ferrum', which is the Latin name for Iron. Iron is a crucial transition metal used in the production of steel and heavy machinery. It is also an essential component of hemoglobin in human blood.

In which year was the Indian Space Research Organisation (ISRO) established?

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Correct Answer: C. 1969

ISRO was formed on August 15, 1969, to institutionalize space activities in India. It replaced the previous Indian National Committee for Space Research (INCOSPAR). Vikram Sarabhai is considered the visionary founder of this premier space agency.

Which blood group is referred to as the 'Universal Donor'?

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Correct Answer: B. O negative

O negative blood can be given to patients of any blood type in an emergency. It lacks A, B, and Rh antigens, which prevents an adverse immune reaction. Only about 7% of the global population has this specific blood group.

Which of the following physical quantities is a vector quantity?

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Correct Answer: D. Displacement

Displacement is a vector because it includes both the magnitude of distance and a specific direction. Scalar quantities like speed and time only possess magnitude without any directional component. Displacement represents the shortest path between the starting and ending points.

In which year did Mahatma Gandhi start the Non-Cooperation Movement?

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Correct Answer: A. 1920

The Non-Cooperation Movement was launched in 1920 to protest against the Rowlatt Act and Jallianwala Bagh massacre. It aimed to resist British rule through the surrender of titles and boycott of government institutions. The movement was a significant step in the Indian struggle for independence.

Who appoints the Comptroller and Auditor General (CAG) of India?

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Correct Answer: B. President of India

The President of India appoints the CAG as per the provisions of Article 148. The CAG is the head of the Indian Audit and Accounts Department and acts as the guardian of the public purse. The person in this post holds office for a term of six years.

Kaziranga National Park, famous for the one-horned rhinoceros, is located in which state?

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Correct Answer: A. Assam

Kaziranga National Park is a UNESCO World Heritage Site located in the state of Assam. It hosts two-thirds of the world's great one-horned rhinoceros population. The park is also recognized as an important bird area by BirdLife International.

What is the chemical name of 'Baking Soda'?

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Correct Answer: C. Sodium Bicarbonate

Baking soda is chemically known as Sodium Bicarbonate, with the formula NaHCO3. It is commonly used in cooking as a leavening agent to make dough rise. It also serves as a mild antiseptic and a natural fire extinguisher.

In which Indian city is the historical monument 'Hawa Mahal' situated?

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Correct Answer: D. Jaipur

Hawa Mahal, or the 'Palace of Winds', was built in 1799 in the heart of Jaipur. It features a unique five-story exterior with nearly 953 small windows called Jharokhas. The structure was designed by Lal Chand Ustad using red and pink sandstone.

The folk dance form 'Lavani' is associated with which Indian state?

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Correct Answer: A. Maharashtra

Lavani is a popular genre of music and dance that originated in Maharashtra. It is performed to the beats of a Dholki and is known for its powerful rhythm and traditional attire. Historically, it was used as a source of entertainment for soldiers.

Which part of the brain controls involuntary actions like heartbeat and breathing?

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Correct Answer: B. Medulla Oblongata

The Medulla Oblongata is located in the brainstem and regulates vital autonomic functions. It acts as the control center for cardiovascular and respiratory systems. Any damage to this region can be life-threatening due to its critical role.

Which type of lens is used to correct the vision of a person suffering from Myopia?

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Correct Answer: C. Concave lens

A concave lens is used to correct Myopia, also known as nearsightedness. This lens diverges incoming light rays so they focus correctly on the retina rather than in front of it. It is thinner in the center and thicker at the edges.

After which famous battle did Emperor Ashoka decide to give up war and adopt Buddhism?

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Correct Answer: D. Kalinga War

The Kalinga War was fought in 261 BCE and resulted in massive loss of life. Deeply moved by the suffering, Emperor Ashoka renounced violence and converted to Buddhism. He then dedicated his life to spreading the principles of Dhamma.

What is the retirement age of a Judge of the High Court in India?

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Correct Answer: B. 62 years

A High Court judge holds office until they reach the age of 62 years. This age limit was increased from 60 to 62 by the 15th Constitutional Amendment in 1963. Supreme Court judges, however, retire at the age of 65.

In which continent is the Sahara Desert located?

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Correct Answer: A. Africa

The Sahara is the largest hot desert in the world, covering much of North Africa. It spans across 11 countries and is nearly the size of the entire United States. The desert's landscape consists of sand dunes, stone plateaus, and dry valleys.

Which acid is responsible for the sour taste of curd?

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Correct Answer: B. Lactic acid

Lactic acid is produced when bacteria ferment the lactose present in milk. This process turns milk into curd and gives it a characteristic tangy flavor. Lactic acid also acts as a natural preservative in various fermented foods.

Where is the headquarters of the World Health Organization (WHO) situated?

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Correct Answer: D. Geneva

The WHO headquarters is located in Geneva, Switzerland. It was founded in 1948 as a specialized agency of the United Nations for international public health. Its primary role is to direct and coordinate international health work.

Bharatanatyam is the classical dance form of which Indian state?

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Correct Answer: C. Tamil Nadu

Bharatanatyam is one of the oldest classical dance traditions of India, originating from Tamil Nadu. It is known for its fixed upper torso, bent legs, and spectacular footwork. The dance is traditionally accompanied by Carnatic music.

Which organ in the human body secretes 'Bile' juice?

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Correct Answer: A. Liver

The liver produces bile, a digestive fluid that helps in the breakdown of fats. Although produced in the liver, bile is stored and concentrated in the gallbladder. It is released into the small intestine during the digestion process.

What is the approximate distance of one 'Astronomical Unit' (AU)?

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Correct Answer: C. Distance between Earth and Sun

One Astronomical Unit represents the average distance between the Earth and the Sun. This value is approximately 150 million kilometers. It is used as a standard measure for distances within our solar system.

In which year did the Simon Commission arrive in India?

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Correct Answer: D. 1928

The Simon Commission arrived in India in 1928 to study constitutional reforms. It was widely boycotted by Indians because it did not include any Indian members. The protest against this commission led to the slogan 'Simon Go Back'.

Under which Article of the Indian Constitution can a 'National Emergency' be declared?

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Correct Answer: B. Article 352

The President can declare a National Emergency under Article 352 due to war or external aggression. It has been proclaimed three times in India: in 1962, 1971, and 1975. This emergency affects the federal structure of the Indian government.

Kanha National Park is located in which Indian state?

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Correct Answer: C. Madhya Pradesh

Kanha National Park is situated in Madhya Pradesh and is one of the largest tiger reserves in India. It is famous for saving the Barasingha (swamp deer) from near extinction. The park provided inspiration for Rudyard Kipling's famous work, 'The Jungle Book'.

Which gas is used to fill weather balloons because of its low density?

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Correct Answer: A. Helium

Helium is used in weather balloons because it is much lighter than air and non-flammable. While hydrogen is even lighter, it is highly reactive and poses a fire risk. Helium's inert nature makes it a safe choice for high-altitude research.

Who was the first woman Speaker of the Lok Sabha?

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Correct Answer: D. Meira Kumar

Meira Kumar served as the first woman Speaker of the Lok Sabha from 2009 to 2014. Before entering politics, she had a distinguished career as a diplomat in the Indian Foreign Service. She presided over the house during the 15th Lok Sabha session.

Pandit Hariprasad Chaurasia is a world-renowned exponent of which musical instrument?

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Correct Answer: B. Flute

Pandit Hariprasad Chaurasia is a legendary maestro of the Bansuri, an Indian bamboo flute. He has played a major role in bringing classical flute music to the global stage. He was honored with the Padma Vibhushan for his lifelong musical contributions.

Which mineral element is found in Vitamin B12?

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Correct Answer: D. Cobalt

Vitamin B12 is also known as Cobalamin because it contains a cobalt ion at its center. It is essential for red blood cell formation and the proper functioning of the nervous system. This vitamin is primarily found in animal-based food products.

What is the speed of light in a vacuum?

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Correct Answer: A. 3 x 10^8 m/s

The speed of light in a vacuum is approximately 3 × 10⁸ m/s (300,000,000 meters per second or 300,000 km/s). This universal constant, denoted as 'c', was precisely measured as 299,792,458 m/s. The speed of light at 3 × 10⁸ m/s is the maximum speed at which information or matter can travel in the universe. Albert Einstein's theory of special relativity is based on the constancy of the speed of light.

In which year was the Second Battle of Panipat fought?

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Correct Answer: C. 1556

The Second Battle of Panipat was fought in 1556 between the forces of Emperor Akbar and Hemu. Akbar's generals, Bairam Khan and Khan Zaman I, led the Mughal army to victory. This battle firmly re-established Mughal rule in North India.

Who has the authority to appoint the Chairman of the Union Public Service Commission (UPSC)?

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Correct Answer: B. President of India

The President of India appoints the Chairman and other members of the UPSC under Article 316. The UPSC is a constitutional body responsible for conducting examinations for appointments to All India services. Members serve for a term of six years or until the age of 65.

Which planet is often called the 'Morning Star' or 'Evening Star'?

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Correct Answer: A. Venus

Venus is called the Morning or Evening Star because it is the brightest object in the sky after the Sun and Moon. It is clearly visible just before sunrise or just after sunset. Its brilliance is due to its thick atmosphere reflecting sunlight.

What is the chemical name for 'Washing Soda'?

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Correct Answer: B. Sodium Carbonate

Washing soda is chemically known as Sodium Carbonate, with the formula Na2CO3. It is widely used as a cleaning agent for domestic purposes and in the manufacture of glass and paper. It is also used to remove permanent hardness from water.

Who is the author of the famous book 'The Story of My Experiments with Truth'?

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Correct Answer: C. Mahatma Gandhi

This book is the autobiography of Mahatma Gandhi, covering his life from early childhood to 1921. It was originally written in Gujarati and later translated into many languages including English. It describes his spiritual experiments and his philosophy of non-violence.

In which Indian state is the harvest festival 'Onam' primarily celebrated?

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Correct Answer: C. Kerala

Onam is the biggest annual festival in Kerala and marks the homecoming of the mythical King Mahabali. It is celebrated with activities like Vallam Kali (boat races) and Pookalam (flower carpets). The festival reflects the rich cultural heritage and agricultural history of the state.

What is the name of the longest and strongest bone in the human body?

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Correct Answer: D. Femur

The femur, also known as the thigh bone, is the longest and strongest bone in the human skeleton. It supports the weight of the body during walking and running. It extends from the hip joint down to the knee joint.