RRB Group D — Set 9

Q: Which enzyme present in human saliva helps in the digestion of starch?

Salivary Amylase. Salivary amylase breaks down complex starch into simpler sugars. It is the first enzyme to act on food in the mouth. This chemical process initiates the human digestive system.

Q: Who was the founder of the Gupta Dynasty in ancient India?

Sri Gupta. Sri Gupta is recognized as the founder of the Gupta Empire in the 3rd century. He used the title Maharaja to signify his local authority. The empire later reached its peak under his successors.

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

Karnataka. Karnataka accounts for nearly 70 percent of India's total coffee production. The Kodagu and Chikmagalur districts are famous for high-quality Arabica beans. This state has a favorable hilly climate for coffee cultivation.

Q: Under which Article of the Indian Constitution can the Parliament amend the Constitution?

Article 368. Article 368 gives Parliament the power to amend constitutional provisions. This procedure ensures the Constitution remains a living and flexible document. Some amendments require a special majority of both Houses.

Q: Which instrument is used to measure the speed of wind?

Anemometer. An anemometer measures wind speed and pressure by rotating its cups. It is a common tool used in weather stations for meteorology. Higher rotation speeds indicate stronger wind force in the area.

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Which enzyme present in human saliva helps in the digestion of starch?

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Correct Answer: A. Salivary Amylase

Salivary amylase breaks down complex starch into simpler sugars. It is the first enzyme to act on food in the mouth. This chemical process initiates the human digestive system.

Who was the founder of the Gupta Dynasty in ancient India?

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Correct Answer: B. Sri Gupta

Sri Gupta is recognized as the founder of the Gupta Empire in the 3rd century. He used the title Maharaja to signify his local authority. The empire later reached its peak under his successors.

Which Indian state is the largest producer of coffee?

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Correct Answer: C. Karnataka

Karnataka accounts for nearly 70 percent of India's total coffee production. The Kodagu and Chikmagalur districts are famous for high-quality Arabica beans. This state has a favorable hilly climate for coffee cultivation.

Under which Article of the Indian Constitution can the Parliament amend the Constitution?

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Correct Answer: D. Article 368

Article 368 gives Parliament the power to amend constitutional provisions. This procedure ensures the Constitution remains a living and flexible document. Some amendments require a special majority of both Houses.

Which instrument is used to measure the speed of wind?

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Correct Answer: A. Anemometer

An anemometer measures wind speed and pressure by rotating its cups. It is a common tool used in weather stations for meteorology. Higher rotation speeds indicate stronger wind force in the area.

International Women's Day is observed every year on which date?

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Correct Answer: B. March 8

March 8 is celebrated globally to recognize women's social and cultural achievements. It was officially recognized by the United Nations in the year 1977. Many countries observe this day as a public holiday.

What is the full form of 'GST' in the context of the Indian economy?

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Correct Answer: C. Goods and Services Tax

Goods and Services Tax 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 Goods and Services Tax 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 gas turns lime water milky when passed through it?

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Correct Answer: D. Carbon Dioxide

Carbon dioxide reacts with lime water to form insoluble calcium carbonate. This chemical reaction is a standard test for identifying CO2 gas. The milky appearance disappears if excess gas is continuously passed.

Who was the founder of the Slave Dynasty in the Delhi Sultanate?

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Correct Answer: A. Qutb-ud-din Aibak

Qutb-ud-din Aibak established the Slave Dynasty in India in 1206. He was a general of Muhammad Ghori and began the construction of Qutub Minar. His reign marked the beginning of Muslim rule in North India.

Which peak is the highest point in the Western Ghats mountain range?

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Correct Answer: B. Anamudi

Anamudi is the highest peak in South India, located in the state of Kerala. It has an elevation of 2,695 meters above sea level. This peak is also the highest point in the entire Western Ghats.

Currently, how many Fundamental Rights are provided by the Indian Constitution?

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Correct Answer: C. 6

Currently, the Indian Constitution provides 6 Fundamental Rights: Right to Equality (Art 14-18), Right to Freedom (Art 19-22), Right Against Exploitation (Art 23-24), Right to Freedom of Religion (Art 25-28), Cultural and Educational Rights (Art 29-30), and Right to Constitutional Remedies (Art 32). Originally there were 7 fundamental rights, but the Right to Property was removed by the 44th Amendment in 1978, leaving 6. These 6 Fundamental Rights are enforceable in a court of law.

Who is the author of the famous Hindi novel 'Godan'?

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Correct Answer: D. Munshi Premchand

Munshi Premchand wrote Godan, which is considered one of the greatest Indian novels. It depicts the socio-economic struggles of the Indian peasantry during British rule. Premchand is often called 'Upanyas Samrat' for his literary works.

Which cell organelle is commonly referred to as the 'Suicide Bag' of the cell?

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Correct Answer: A. Lysosome

Lysosomes contain digestive enzymes that break down waste and damaged cell parts. If a cell is damaged beyond repair, lysosomes burst and digest the cell itself. This protective process prevents the accumulation of cellular debris.

Who gave the slogan 'Swaraj is my birthright and I shall have it'?

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Correct Answer: B. Bal Gangadhar Tilak

Bal Gangadhar Tilak used this powerful slogan to demand self-rule from British authorities. He was one of the most prominent leaders of the extremist wing of Congress. Tilak also started the Marathi newspaper 'Kesari' to spread nationalism.

Which of the following is the southernmost point of mainland India?

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Correct Answer: C. Kanyakumari

Kanyakumari is the town located at the tip of the Indian peninsula. It is the meeting point of the Arabian Sea, Bay of Bengal, and Indian Ocean. Note that Indira Point is the southernmost point of Indian territory.

Which Article of the Indian Constitution deals with the Election Commission?

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Correct Answer: D. Article 324

Article 324 grants the power of superintendence and control of elections to the Commission. This body ensures the conduct of free and fair elections in the country. It oversees elections for the Parliament and State Legislatures.

What is the SI unit of electrical potential difference?

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Correct Answer: A. Volt

The Volt is the unit used to measure the electric potential between two points. It is named after the Italian physicist Alessandro Volta, who invented the battery. One volt is defined as one joule of work per coulomb.

In which year was the Reserve Bank of India (RBI) established?

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Correct Answer: B. 1935

The RBI was established on April 1, 1935, based on the Hilton Young Commission. It serves as the central bank of India and regulates the banking system. Initially, its headquarters were in Kolkata before moving to Mumbai.

Which form of carbon is a good conductor of electricity?

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Correct Answer: C. Graphite

Graphite is a good conductor of electricity due to its free-moving electrons between layers. This property makes it useful for making electrodes and dry cell lubricants. Unlike graphite, diamond is an insulator and does not conduct electricity.

Odissi is a classical dance form belonging to which Indian state?

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Correct Answer: A. Odisha

Odissi is a major ancient classical dance that originated in the temples of Odisha. It is known for its lyrical movements and the Tribhangi (three-part) body posture. The dance traditionally depicts stories of Lord Krishna and his life.

Which metal is a central component of the Chlorophyll molecule in plants?

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Correct Answer: A. Magnesium

Magnesium is the essential element located at the center of the chlorophyll structure. It plays a vital role in capturing light energy during the photosynthesis process. A deficiency of magnesium causes yellowing of leaves, known as chlorosis.

Which city served as the capital of the Kushan ruler Kanishka?

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Correct Answer: B. Purushapura

Purushapura, modern-day Peshawar, was the main capital of the Kushan Empire under Kanishka. He also had a secondary capital at Mathura in North India. Kanishka is famous for convening the Fourth Buddhist Council in Kashmir.

Which is the longest river in the world?

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Correct Answer: C. Nile

The Nile River is the longest river on Earth, flowing over 6,650 kilometers through Africa. It flows northward through eleven countries and drains into the Mediterranean Sea. The Amazon River is the largest in terms of water volume.

Who is known as the 'First Citizen' of India?

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Correct Answer: D. President of India

The President of India holds the highest rank in the Indian order of precedence. As the ceremonial head of state, the President is considered the first citizen. This title signifies the unity and integrity of the Indian nation.

What are the three primary colors of light?

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Correct Answer: A. Red, Green, Blue

Red, Green, and Blue are the primary colors used in the additive color model of light. Combining these three colors in equal intensity produces white light. Most electronic screens use these three colors to display a full range.

The UNESCO World Heritage Site 'Hampi' is located in which Indian state?

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Correct Answer: B. Karnataka

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

Who was the first Viceroy of India after the 1857 Revolt?

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Correct Answer: C. Lord Canning

Lord Canning served as the last Governor-General and became the first Viceroy in 1858. This change occurred when the British Crown took over administration from the Company. He also introduced the Indian Penal Code and high court systems.

Which is the hardest natural substance found on Earth?

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Correct Answer: D. Diamond

Diamond is an allotrope of carbon where atoms are arranged in a strong crystal structure. It is the hardest known natural material due to its rigid covalent bonds. Diamonds are widely used in industrial cutting tools and fine jewelry.

Which Indian state has the largest forest cover in terms of area?

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Correct Answer: A. Madhya Pradesh

Madhya Pradesh has the largest total area of forest land among all Indian states. This provides a diverse habitat for various wildlife, including tigers and leopards. Mizoram has the highest percentage of forest cover relative to its size.

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

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Correct Answer: B. 25 years

A person must be a citizen of India and at least 25 years old to contest elections. This age limit is defined by Article 84 of the Indian Constitution. In contrast, the minimum age for a Rajya Sabha member is 30 years.

Which medical instrument is used for measuring human blood pressure?

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Correct Answer: C. Sphygmomanometer

A sphygmomanometer consists of an inflatable cuff and a pressure-measuring gauge. It measures the systolic and diastolic pressure of blood against arterial walls. A stethoscope is often used alongside it to listen to pulse sounds.

Who was the first and only woman ruler of the Delhi Sultanate?

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Correct Answer: D. Razia Sultan

Razia Sultan was the daughter of Iltutmish and ruled Delhi from 1236 to 1240. She was a courageous leader who defied tradition by appearing in public without a veil. Her reign was brief due to opposition from conservative court nobles.

In which state is the Rohtang Pass located?

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Correct Answer: A. Himachal Pradesh

Rohtang Pass is a high mountain pass on the eastern Pir Panjal Range in Himachal. It connects the Kullu Valley with the Lahaul and Spiti Valleys of the state. The pass is a popular tourist destination known for year-round snow.

How many total categories are there in which the Nobel Prize is awarded?

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Correct Answer: B. 6

Nobel Prizes are awarded in Physics, Chemistry, Medicine, Literature, Peace, and Economic Sciences. The first five were established by Alfred Nobel's will in the year 1895. The Economics prize was later added by the Swedish central bank in 1968.

A 'Mirage' in a hot desert is caused by which optical phenomenon?

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Correct Answer: C. Total Internal Reflection

A mirage occurs when light rays bend through layers of air with different temperatures. This creates a virtual image of the sky on the ground, appearing like water. Total Internal Reflection is the primary physics principle behind this optical illusion.

Which Article of the Indian Constitution ensures the 'Right to Education'?

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Correct Answer: D. Article 21A

Article 21A makes free and compulsory education a fundamental right for children aged 6 to 14. This article was added by the 86th Constitutional Amendment Act in 2002. It aims to achieve universal elementary education across all Indian states.

The Sun Temple, also known as the Black Pagoda, is located in which state?

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Correct Answer: A. Odisha

Odisha is the correct answer to this question. It is a state in eastern India known for its rich cultural heritage, ancient temples, and tribal communities. Odisha is home to important sites like the Konark Sun Temple, Jagannath Temple in Puri, and the Chilika Lake.

Who is the ex-officio Chairman of the NITI Aayog?

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Correct Answer: B. Prime Minister

The Prime Minister of India serves as the Chairperson of the NITI Aayog. NITI Aayog replaced the Planning Commission in 2015 to act as a policy think tank. It promotes cooperative federalism by involving all state chief ministers in planning.

What is the chemical name for 'Plaster of Paris'?

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Correct Answer: C. Calcium Sulfate Hemihydrate

Calcium Sulfate Hemihydrate 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 Calcium Sulfate Hemihydrate and related topics will help candidates score well in the GK section. Regular revision of such key facts is highly recommended for exam preparation.

Who was the first Indian woman to travel into space?

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Correct Answer: D. Kalpana Chawla

Kalpana Chawla first flew on the Space Shuttle Columbia in the year 1997. She was born in Karnal, Haryana, and became a source of inspiration for millions. She tragically lost her life during the Columbia shuttle disaster in 2003.