RRB Group D — Set 15
40 questions
The Indus Valley site of Lothal is located in which modern-day Indian state?
Correct Answer: A. Gujarat
Lothal was a prominent port city of the ancient Indus Valley Civilization. It is located in the Saragwala village of Gujarat. This site features the world's earliest known artificial dock.
Which layer of the atmosphere is closest to the Earth's surface?
Correct Answer: B. Troposphere
The troposphere is the lowest layer of the atmosphere where all weather changes occur. It contains approximately 75% of the atmosphere's total mass. The temperature in this layer decreases as altitude increases.
What is the normal pH value of human blood?
Correct Answer: C. 7.4
Human blood is slightly basic with a normal pH range between 7.35 and 7.45. Maintaining this specific pH is crucial for the proper functioning of biological processes. The kidneys and lungs work together to keep this balance stable.
Which of the following is the smallest bone in the human body?
Correct Answer: D. Stapes
The stapes is a tiny bone located in the middle ear of humans. It plays a vital role in transmitting sound vibrations to the inner ear. The femur, found in the thigh, is the largest bone in the body.
Who was the first President of the Indian National Congress?
Correct Answer: A. Womesh Chandra Bonnerjee
Womesh Chandra Bonnerjee presided over the first session of the Congress in 1885. The session was held in Bombay and attended by 72 delegates. He was a prominent barrister from Bengal.
What is the escape velocity of an object from the Earth's surface?
Correct Answer: B. 11.2 km/s
Escape velocity is the minimum speed needed for an object to break free from Earth's gravity. It is calculated to be approximately 11.2 kilometers per second. This value depends on the mass and radius of the planet.
Under which Article can the President of India grant a pardon?
Correct Answer: C. Article 72
Article 72 empowers the President to grant pardons or reduce sentences of any person. This power applies to cases involving court-martials or offenses against Union laws. It is a discretionary power used to correct potential judicial errors.
Which gas is known as 'Dry Ice' in its solid form?
Correct Answer: D. Carbon Dioxide
Dry ice is the solid state of carbon dioxide achieved at very low temperatures. It does not melt into a liquid but turns directly into gas through sublimation. It is commonly used as a cooling agent for preserving food.
In which city is the headquarters of the Reserve Bank of India (RBI) located?
Correct Answer: A. Mumbai
The central office of the RBI was initially in Kolkata but moved to Mumbai in 1937. It is the institution where the Governor sits and policies are framed. The RBI serves as the central bank for the entire country.
Which vitamin is synthesized in the human body in the presence of sunlight?
Correct Answer: B. Vitamin D
The human skin produces Vitamin D when exposed to ultraviolet B radiation from the sun. This vitamin is essential for maintaining strong bones and absorbing calcium. Many people face deficiencies during winter months due to lack of exposure.
The 42nd Constitutional Amendment Act is often referred to by which name?
Correct Answer: B. Mini Constitution
The 42nd Amendment of 1976 brought massive changes to many parts of the Indian Constitution. It added the words 'Socialist', 'Secular', and 'Integrity' to the Preamble. It was enacted during the period of National Emergency.
Which instrument is used to measure atmospheric pressure?
Correct Answer: D. Barometer
A barometer is a scientific instrument used to monitor air pressure in a specific environment. Changes in pressure are often used to forecast short-term changes in the weather. Mercury barometers are the most traditional type used by scientists.
Who was the founder of the Arya Samaj?
Correct Answer: A. Dayananda Saraswati
Swami Dayananda Saraswati founded the Arya Samaj in 1875 in Bombay. He promoted the slogan 'Back to the Vedas' and rejected idol worship. His major literary work is the book titled 'Satyarth Prakash'.
Which is the largest planet in our solar system?
Correct Answer: B. Jupiter
Jupiter is a gas giant and the most massive planet in the entire solar system. It is primarily composed of hydrogen and helium gas. It is famous for its Great Red Spot, which is a giant storm.
What is the chemical formula for Baking Soda?
Correct Answer: B. $NaHCO_3$
$NaHCO_3$ is the formula for Sodium Bicarbonate, commonly known as baking soda. It is widely used in cooking to help dough rise by releasing carbon dioxide. It also acts as a mild antiseptic and antacid.
Which Indian state has the longest coastline?
Correct Answer: D. Gujarat
Gujarat has a coastline stretching over 1,600 kilometers along the Arabian Sea. This long coast is beneficial for salt production and maritime trade. India has a total coastline of more than 7,500 kilometers including islands.
The Battle of Haldighati was fought between Maharana Pratap and which Mughal Emperor's forces?
Correct Answer: A. Akbar
The Battle of Haldighati took place in 1576 between the Rajput army and Akbar's forces led by Man Singh I. Although the Mughals won, Maharana Pratap continued his resistance from the hills. This battle is remembered for the legendary bravery of the Rajputs.
Which part of the plant is responsible for transporting water from roots to leaves?
Correct Answer: B. Xylem
Xylem is a specialized vascular tissue that moves water and minerals upwards in a plant. This process is driven by transpiration pull and root pressure. Phloem, on the other hand, transports food made in the leaves.
Under the Indian Constitution, what is the minimum age required to become the President?
Correct Answer: C. 35 years
A candidate must be at least 35 years old to be eligible for the office of President. Other requirements include being a citizen of India and qualified to be a member of the Lok Sabha. The President is the ceremonial head of the Indian state.
What is the SI unit of work?
Correct Answer: D. Joule
The Joule is the SI unit used to measure both work and energy. It is defined as the work done when a force of one Newton moves an object by one meter. This unit is named after the physicist James Prescott Joule.
Which is the highest peak of the Aravalli mountain range?
Correct Answer: A. Guru Shikhar
Guru Shikhar is located in the Mount Abu region of Rajasthan. It stands at an elevation of 1,722 meters above sea level. The Aravalli range is one of the oldest fold mountain systems in the world.
In which part of the human body is insulin produced?
Correct Answer: B. Pancreas
Insulin is a hormone produced by the beta cells of the pancreas. It helps regulate blood sugar levels by allowing cells to absorb glucose. A lack of insulin production leads to a condition called diabetes.
The 'Right to Education' was added as a Fundamental Right under which Article?
Correct Answer: C. Article 21A
Article 21A was added by the 86th Constitutional Amendment Act in 2002. It mandates the state to provide free and compulsory education to children aged 6 to 14. This is a landmark right for ensuring literacy in India.
What is the chemical name of Vinegar?
Correct Answer: D. Acetic Acid
Vinegar typically contains 5-8% acetic acid by volume. Its chemical formula is $CH_3COOH$ and it is produced by the fermentation of ethanol. It is widely used in food preservation and household cleaning.
Which of the following acids is present in a lemon?
Correct Answer: A. Citric Acid
Lemons and other citrus fruits contain high concentrations of citric acid. This acid gives the fruit its characteristic sour taste and acts as a natural preservative. It is also a rich source of Vitamin C.
Who was the author of the famous Sanskrit play 'Abhigyan Shakuntalam'?
Correct Answer: B. Kalidasa
Kalidasa is regarded as the greatest poet and dramatist in the Sanskrit language. Abhigyan Shakuntalam is his most famous play, telling the story of King Dushyanta and Shakuntala. He lived during the Gupta period in ancient India.
In which city is the Hawa Mahal located?
Correct Answer: C. Jaipur
Jaipur 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 Jaipur 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 device is used to convert mechanical energy into electrical energy?
Correct Answer: D. Generator
An electric generator works on the principle of electromagnetic induction. It rotates a coil in a magnetic field to produce an electric current. Michael Faraday is credited with discovering this fundamental process.
The concept of 'Single Citizenship' in India was borrowed from which country?
Correct Answer: A. United Kingdom
United Kingdom 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 United Kingdom and related topics will help candidates score well in the GK section. Regular revision of such key facts is highly recommended for exam preparation.
What is the common name of Calcium Carbonate?
Correct Answer: B. Limestone
Limestone is a sedimentary rock primarily composed of calcium carbonate ($CaCO_3$). It is widely used as a building material and in the manufacturing of cement. In its pure form, it is also known as chalk or marble.
Which river is also known as the 'Dakshin Ganga'?
Correct Answer: C. Godavari
The Godavari is the second longest river in India after the Ganges. It is called Dakshin Ganga due to its large size and religious significance in South India. It originates in the Nashik district of Maharashtra.
Which of the following is a unit of power?
Correct Answer: D. Watt
The Watt is the SI unit used to measure the rate of energy consumption. One Watt is defined as one Joule of work done per second. It is a standard unit in both mechanical and electrical contexts.
In which year was the Quit India Movement launched?
Correct Answer: A. 1942
The Quit India Movement was launched by Mahatma Gandhi in August 1942. He gave the famous slogan 'Do or Die' during this mass protest. It was a call for immediate independence from British colonial rule.
Who wrote the national song 'Vande Mataram'?
Correct Answer: B. Bankim Chandra Chattopadhyay
Bankim Chandra Chattopadhyay composed Vande Mataram in the 1870s. It was later included in his famous novel 'Anandamath'. The song played a major role in inspiring the Indian independence movement.
Which instrument is used to measure the intensity of an earthquake?
Correct Answer: C. Seismograph
A seismograph records the motion of the ground during an earthquake. The data produced is used to determine the magnitude and location of the seismic event. The Richter scale is commonly used to quantify the energy released.
What is the primary function of Hemoglobin in the blood?
Correct Answer: D. Transporting oxygen
Hemoglobin is a protein in red blood cells that binds with oxygen. It carries oxygen from the lungs to all other parts of the body. Iron is an essential element required for the production of hemoglobin.
Which state in India is the largest producer of Saffron?
Correct Answer: A. Jammu and Kashmir
Jammu and Kashmir is the only state in India that produces saffron on a commercial scale. The Pampore region is particularly famous for its high-quality saffron crops. It is one of the most expensive spices in the world by weight.
Who was the first woman to be awarded the Bharat Ratna?
Correct Answer: B. Indira Gandhi
Indira Gandhi, the former Prime Minister of India, received the Bharat Ratna in 1971. She was the first female recipient of India's highest civilian honor. Mother Teresa was the second woman to receive this award in 1980.
What is the chemical symbol for Gold?
Correct Answer: C. Au
The symbol 'Au' for gold comes from its Latin name 'Aurum'. It is a highly malleable and ductile metal that does not tarnish. Gold has been used as a standard for currency and jewelry for centuries.
Which day is celebrated as National Science Day in India?
Correct Answer: D. February 28
National Science Day commemorates the discovery of the Raman Effect by Sir C.V. Raman. He announced this discovery on February 28, 1928. This achievement earned him the Nobel Prize in Physics in 1930.