RRB Group D — Set 22
40 questions
Which law states that for every action, there is an equal and opposite reaction?
Correct Answer: A. Newton's Third Law
Newton's Third Law explains the relationship between two interacting objects. It states that forces always exist in equal and opposite pairs. A common example is the recoil of a gun when a bullet is fired.
Which is the largest hot desert in the world?
Correct Answer: B. Sahara Desert
The Sahara Desert is located in North Africa and covers nearly one-third of the continent. It is known for its extreme temperatures and vast sand dunes. It spans across eleven different countries including Egypt and Libya.
Which Article of the Indian Constitution is called the 'Heart and Soul' by Dr. B.R. Ambedkar?
Correct Answer: C. Article 32
Article 32 provides the right to Constitutional Remedies for the protection of fundamental rights. It allows citizens to move the Supreme Court if their rights are violated. Dr. Ambedkar considered it the most important article for safeguarding democracy.
Which vitamin is essential for the process of blood clotting?
Correct Answer: D. Vitamin K
Vitamin K is a fat-soluble vitamin that plays a key role in helping the blood clot. Without this vitamin, even minor injuries could lead to excessive bleeding. Green leafy vegetables are considered the best source of this vitamin.
Who gave the famous slogan 'Swaraj is my birthright and I shall have it'?
Correct Answer: A. Bal Gangadhar Tilak
Bal Gangadhar Tilak was a prominent leader in the Indian independence movement. He was one of the first advocates of Swaraj or self-rule for India. He also started the famous newspapers Kesari and Maratha.
What is the chemical name of the gas commonly known as 'Laughing Gas'?
Correct Answer: B. Nitrous Oxide
Nitrous Oxide is a colorless gas with a slightly sweet odor. It is used in dentistry and surgery for its anesthetic and analgesic effects. The chemical formula for this gas is $N_2O$.
Kathakali is a major classical dance form associated with which state?
Correct Answer: C. Kerala
Kathakali is a story-play art form that originated in the 17th century in Kerala. It is distinguished by its colorful makeup, costumes, and face masks. The performers usually depict characters from the ancient Indian epics.
Who is known as the Father of the Green Revolution in India?
Correct Answer: D. M.S. Swaminathan
M.S. Swaminathan was a renowned geneticist who introduced high-yielding varieties of wheat to India. His work helped the country achieve self-sufficiency in food grain production. He was awarded the first World Food Prize in 1987.
What is the SI unit of velocity?
Correct Answer: A. Meter per second
Velocity is a vector quantity that describes the rate of change of an object's position. The SI unit for measuring this change is meters per second ($m/s$). It specifies both the speed and the direction of a moving object.
What was the main reason for the boycott of the Simon Commission by Indians?
Correct Answer: B. It had no Indian members
The Simon Commission was appointed in 1927 to suggest constitutional reforms for India. Since all its seven members were British, it was seen as an insult to Indian self-respect. Protests across the country used the slogan 'Simon Go Back'.
By which Constitutional Amendment was the voting age reduced from 21 to 18 years?
Correct Answer: C. 61st Amendment
The 61st Amendment Act of 1988 lowered the voting age for Lok Sabha and Assembly elections. It was enacted to increase the participation of the youth in the democratic process. This change came into force on March 28, 1989.
The famous Sun Temple of Konark is located in which Indian state?
Correct Answer: D. 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.
Which phenomenon is primarily responsible for the formation of a rainbow?
Correct Answer: A. Dispersion of light
A rainbow is formed when sunlight is scattered by water droplets in the atmosphere. The droplets act like tiny prisms that break white light into its seven constituent colors. This process is called the dispersion of light.
Which blood group is known as the 'Universal Recipient'?
Correct Answer: B. AB positive
People with the AB positive blood group can receive blood of any type without a reaction. This is because their blood contains both A and B antigens and lacks anti-A or anti-B antibodies. It is relatively rare compared to other blood groups.
Who was the first Viceroy of India after the Revolt of 1857?
Correct Answer: C. Lord Canning
Lord Canning served as the Governor-General of India during the 1857 uprising. After the Government of India Act 1858, he became the first Viceroy under the British Crown. He is known for abolishing the Doctrine of Lapse.
Where is the headquarters of the Indian Space Research Organisation (ISRO) located?
Correct Answer: D. Bengaluru
ISRO's headquarters is situated in Bengaluru, Karnataka. It was established in 1969 to develop space technology for national development. The organization reports directly to the Department of Space under the Prime Minister.
Gir National Park in Gujarat is the last natural habitat of which animal?
Correct Answer: A. Asiatic Lion
Gir National Park is the only place in the world where Asiatic lions can be found in the wild. It was established in 1965 to protect these lions from extinction. The park also has a large population of leopards and crocodiles.
What is the hardest naturally occurring substance on Earth?
Correct Answer: B. Diamond
Diamond is made of pure carbon atoms arranged in an extremely strong crystal structure. It is used in industrial tools for cutting and grinding because of its durability. It ranks at the top of the Mohs scale of mineral hardness.
The 'Fundamental Duties' were added to the Indian Constitution on the recommendation of which committee?
Correct Answer: C. Swaran Singh Committee
The Swaran Singh Committee recommended the inclusion of a separate chapter on fundamental duties in 1976. Ten duties were initially added by the 42nd Amendment Act. These duties serve as a reminder to citizens of their social obligations.
What is the unit used to measure the intensity of sound?
Correct Answer: D. Decibel
The Decibel ($dB$) is the unit used to express the relative intensity of sound waves. Human hearing is sensitive to a wide range of pressures, which this logarithmic scale captures. Sounds above 85 decibels are considered harmful to the ears over time.
From which location did Mahatma Gandhi start the Dandi March in 1930?
Correct Answer: A. Sabarmati Ashram
Mahatma Gandhi began the Salt March from Sabarmati Ashram in Ahmedabad. He walked 240 miles with 78 followers to reach the coastal village of Dandi. The march was a protest against the British monopoly on salt production.
The Panama Canal connects which two major water bodies?
Correct Answer: B. Atlantic Ocean and Pacific Ocean
The Panama Canal is an artificial waterway that cuts through the Isthmus of Panama. It significantly reduces the travel time for ships moving between the two oceans. It is considered one of the greatest engineering feats of the 20th century.
What is the term of a member of the Rajya Sabha?
Correct Answer: C. 6 years
Members of the Rajya Sabha are elected for a fixed term of six years. One-third of the members retire every two years, ensuring that the house is never fully dissolved. It is known as the Upper House of the Indian Parliament.
What is the SI unit of density?
Correct Answer: D. $kg/m^3$
Density is defined as the mass of a substance per unit of its volume. The SI unit for density is kilograms per cubic meter ($kg/m^3$). It helps in determining whether an object will float or sink in water.
Who was the founder of the Slave Dynasty in India?
Correct Answer: A. Qutub-ud-din Aibak
Qutub-ud-din Aibak established the Slave Dynasty after the death of Muhammad Ghori. He was the first Sultan of Delhi and began the construction of the Qutub Minar. He ruled from 1206 to 1210 AD.
Which of the following is the smallest living cell?
Correct Answer: B. Mycoplasma
Mycoplasmas are the smallest known independent organisms capable of growth and reproduction. They are unique because they lack a cell wall around their cell membrane. Most species of Mycoplasma are resistant to common antibiotics like penicillin.
Kuchipudi is a classical dance form that originated in which Indian state?
Correct Answer: C. Andhra Pradesh
Kuchipudi is named after a village in the Krishna district of Andhra Pradesh. It combines fast footwork with expressive eye movements and hand gestures. Traditionally, it was performed only by male dancers in temples.
On which date did the Goods and Services Tax (GST) come into effect in India?
Correct Answer: D. July 1, 2017
GST was launched at midnight on July 1, 2017, to replace multiple indirect taxes. It is a comprehensive, destination-based tax on the supply of goods and services. The motto of GST in India is 'One Nation, One Tax'.
Who is credited with the invention of the first compound microscope?
Correct Answer: A. Zacharias Janssen
Zacharias Janssen, a Dutch spectacle maker, is generally believed to have invented the microscope around 1590. His early design used two lenses to achieve higher magnification than a single lens. This invention revolutionized the study of biological sciences.
Which is the largest island in the world?
Correct Answer: B. Greenland
Greenland is a massive island country located between the Arctic and Atlantic Oceans. It is an autonomous territory within the Kingdom of Denmark. About 80% of its surface is covered by a permanent ice sheet.
Article 21 of the Indian Constitution provides for which of the following?
Correct Answer: C. Protection of Life and Personal Liberty
Article 21 states that no person shall be deprived of their life or liberty except by law. It is considered one of the most widely interpreted articles by the judiciary. It includes the right to a clean environment and the right to privacy.
Which type of mirror is used by dentists to see a larger image of teeth?
Correct Answer: D. Concave mirror
A concave mirror produces an enlarged and erect image when an object is held close to it. This helps dentists examine the small details of a patient's teeth more clearly. These mirrors are also used in makeup kits and shaving kits.
In which year was the Battle of Plassey fought?
Correct Answer: A. 1757
The Battle of Plassey was fought in 1757 between the British East India Company and the Nawab of Bengal, Siraj ud-Daulah, with French support. The battle was fought on June 23, 1757, at Plassey (Palashi) in present-day West Bengal. The British victory at the Battle of Plassey in 1757 laid the foundation for British rule in India. It was a decisive moment because it established British supremacy in Bengal.
Which organelle is known as the 'Suicide Bag' of the cell?
Correct Answer: B. Lysosome
Lysosomes contain digestive enzymes that break down waste materials and cellular debris. If the cell is damaged, the lysosome may burst and digest its own cell. This protective mechanism helps in removing old or diseased cells.
What is the retirement age for a Judge of the High Court in India?
Correct Answer: C. 62 years
High Court judges hold office until they attain the age of 62 years. In contrast, Supreme Court judges retire at the age of 65 years. This age limit is determined by the Indian Constitution.
What is the chemical formula for Plaster of Paris?
Correct Answer: D. $CaSO_4 \cdot 1/2 H_2O$
The chemical formula of Plaster of Paris is CaSO4·½H2O (Calcium Sulphate Hemihydrate). It is prepared by heating gypsum (CaSO4·2H2O) to about 120°C. Plaster of Paris is widely used in construction, medicine for setting fractured bones, and making decorative items.
The river Brahmaputra is known by which name in Tibet?
Correct Answer: A. Tsangpo
The Brahmaputra river originates in Tibet where it is called the Yarlung Tsangpo. It flows through China, India, and Bangladesh before entering the Bay of Bengal. It is one of the longest rivers in Asia.
What is the SI unit of electric current?
Correct Answer: B. Ampere
The Ampere ($A$) is the base SI unit used to measure the flow of electric charge. It is named after the French physicist André-Marie Ampère. One ampere is equal to a flow of one coulomb per second.
Who was the first Indian to receive the Nobel Prize in Literature?
Correct Answer: C. Rabindranath Tagore
Rabindranath Tagore won the Nobel Prize in 1913 for his collection of poems titled 'Gitanjali'. He was the first non-European to win this prestigious award. He also composed the national anthems of both India and Bangladesh.
Which Article of the Indian Constitution provides for a Uniform Civil Code?
Correct Answer: D. Article 44
Article 44 is a Directive Principle that urges the State to secure a uniform civil code for all citizens. It aims to replace personal laws based on religion with a common set of civil laws. Currently, Goa is the only state in India that has a uniform civil code.