RRB ALP — Set 1

Correct Answer: A. 7

Pure water has a pH value of 7, which makes it chemically neutral. The pH scale ranges from 0 to 14, with values below 7 indicating acidity and above 7 indicating alkalinity. A pH of 7 means equal concentrations of hydrogen (H⁺) and hydroxide (OH⁻) ions. Pure water's neutral pH of 7 makes it an important reference point on the pH scale.

Correct Answer: B. 1757

The Battle of Plassey was fought in 1757 between the Nawab of Bengal and the British East India Company. It took place on the banks of the Hooghly River in West Bengal. This victory paved the way for British rule in India.

Correct Answer: C. Ganga

The Ganga is the longest river in India with a length of 2,525 km. It originates from the Gangotri Glacier in the Himalayas. It is also known as the 'Padma' when it enters Bangladesh.

Correct Answer: D. B.R. Ambedkar

Dr. B.R. Ambedkar is called the Father of the Indian Constitution for his role as the Chairman of the Drafting Committee. He ensured the inclusion of civil liberties and the abolition of untouchability. He also served as the first Law Minister of independent India.

Correct Answer: A. Bengaluru

The headquarters of ISRO is located in Bengaluru, Karnataka. It was established on August 15, 1969, to develop space technology. Vikram Sarabhai is considered the founder of the Indian space program.

Correct Answer: B. Mitochondria

Mitochondria are known as the powerhouse of the cell because they produce energy in the form of ATP. They carry out the process of aerobic respiration to release energy. They also contain their own DNA and ribosomes.

Correct Answer: C. 1526

The First Battle of Panipat took place in 1526 between Babur and Ibrahim Lodi. This battle marked the beginning of the Mughal Empire in India. Babur used gunpowder and field artillery for the first time in this region.

Correct Answer: D. Kanchenjunga

Kanchenjunga is the highest mountain peak in India and the third highest in the world. It is located on the border between India (Sikkim) and Nepal. Its elevation is approximately 8,586 meters above sea level.

Correct Answer: A. 35 years

According to Article 58 of the Constitution, a person must be at least 35 years old to be the President. The candidate must also be a citizen of India and qualified for election as a member of the Lok Sabha. The President is elected for a term of five years.

Correct Answer: B. June 21

International Yoga Day is celebrated every year on June 21 to spread awareness about the benefits of yoga. This date coincides with the summer solstice, the longest day of the year in the Northern Hemisphere. It was first observed globally in 2015.

Correct Answer: C. Watt

Watt is the SI unit of power, defined as one joule of work done per second. It is named after James Watt, the inventor of the steam engine. One horsepower is equivalent to approximately 746 watts.

Correct Answer: D. 1942

The Quit India Movement was launched by Mahatma Gandhi on August 8, 1942. During this movement, Gandhi gave the famous slogan 'Do or Die'. It was a mass civil disobedience movement demanding an end to British rule.

Correct Answer: A. Gujarat

Gujarat has the longest coastline among all Indian states, stretching over 1,600 km. It is followed by Andhra Pradesh and Tamil Nadu in terms of coastal length. India's total coastline length, including islands, is about 7,516 km.

Correct Answer: B. Article 14

Article 14 ensures equality before the law and equal protection of the laws within the territory of India. It prohibits discrimination on grounds of religion, race, caste, sex, or place of birth. This is one of the fundamental rights provided to all citizens.

Correct Answer: C. Yen

The Yen is the official currency of Japan and is widely used as a reserve currency. It is the third most traded currency in the foreign exchange market. The symbol for the Yen is ¥.

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

The speed of light in a vacuum is approximately 300,000 kilometers per second or 3 x 10^8 m/s. This is the maximum speed at which all conventional matter and information in the universe can travel. Light takes about 8 minutes and 20 seconds to travel from the Sun to the Earth.

Correct Answer: A. Chandragupta Maurya

Chandragupta Maurya founded the Maurya Empire in 322 BCE after defeating the Nanda dynasty. He was guided by his mentor and advisor, Chanakya. He established one of the largest empires ever to exist in the Indian subcontinent.

Correct Answer: B. Jupiter

Jupiter is the largest planet in our solar system and is classified as a gas giant. It has a mass more than two and a half times that of all the other planets combined. It is famous for its Great Red Spot, a giant storm.

Correct Answer: C. 11

There are currently 11 Fundamental Duties listed in Article 51A of the Indian Constitution. Originally, there were 10 duties added by the 42nd Amendment in 1976. The 11th duty was added by the 86th Amendment Act in 2002.

Correct Answer: D. Mumbai

Wankhede Stadium is a famous international cricket stadium located in Mumbai. It hosted the final of the 2011 ICC Cricket World Cup where India emerged victorious. It is also the home ground for the Mumbai Indians IPL team.

Correct Answer: A. Inertia

Newton's First Law states that an object will remain at rest unless acted upon by an external force. This tendency of an object to resist changes in its state of motion is called inertia. The mass of an object is a measure of its inertia.

Correct Answer: B. Sabarmati Ashram

The Dandi March began from Sabarmati Ashram on March 12, 1930, to protest the British salt tax. Gandhi and his followers walked for 24 days to reach the coastal village of Dandi. This event launched the Civil Disobedience Movement across India.

Correct Answer: C. 82.5° E

The Standard Meridian of India is 82.5° E longitude, passing through Mirzapur in Uttar Pradesh. The time at this meridian is taken as the Indian Standard Time (IST) for the whole country. IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Correct Answer: D. Supreme Court

The Supreme Court of India acts as the Guardian of the Constitution and protects fundamental rights. It has the power of judicial review to declare any law unconstitutional if it violates the basic structure. It is the highest court of appeal in the country.

Correct Answer: A. A.P.J. Abdul Kalam

Wings of Fire is the autobiography of Dr. A.P.J. Abdul Kalam, the former President of India. It details his early life and his career in Indian space and missile programs. The book was co-authored by Arun Tiwari.

Correct Answer: B. Sodium Bicarbonate

The chemical name of baking soda is sodium bicarbonate, represented by the formula NaHCO3. It is used in cooking as a leavening agent and also as an antacid. It reacts with acids to release carbon dioxide gas.

Correct Answer: C. Megasthenes

Indica was written by Megasthenes, a Greek ambassador sent to the court of Chandragupta Maurya. The book provides detailed information about the administration and social life of the Maurya Empire. Although the original book is lost, fragments survive in later Greek writings.

Correct Answer: D. Assam

Kaziranga National Park is located in the state of Assam in North-East India. It is famous for inhabiting the world's largest population of one-horned rhinoceroses. It was declared a UNESCO World Heritage Site in 1985.

Correct Answer: A. Femur

The femur, also known as the thigh bone, is the longest and strongest bone in the human body. it connects the hip to the knee and supports the weight of the body during movement. The smallest bone in the human body is the stapes, located in the ear.

Correct Answer: B. Vitamin C

Scurvy is a disease caused by a lack of Vitamin C (ascorbic acid) in the diet. It leads to symptoms like bleeding gums, weakness, and skin spots. Citrus fruits like oranges and lemons are rich sources of Vitamin C.

Correct Answer: C. 1901

The first Nobel Prizes were awarded in 1901 based on the will of Alfred Nobel. These prizes are given annually in the fields of Physics, Chemistry, Physiology or Medicine, Literature, and Peace. The Nobel Prize in Economics was established later in 1968.

Correct Answer: D. 1935

The Reserve Bank of India was established on April 1, 1935, under the RBI Act of 1934. It was set up based on the recommendations of the Hilton Young Commission. It serves as the central bank and regulatory body for the Indian banking system.

Correct Answer: A. Oxidation

Rusting of iron is an oxidation reaction where iron reacts with oxygen and moisture to form iron oxide. It is a slow chemical change that gradually destroys the metal. Painting or galvanizing iron surfaces can prevent the process of rusting.

Correct Answer: B. Rajasthan

Ghoomar is a traditional folk dance of Rajasthan, primarily performed by women during festive occasions. It involves graceful circular movements and the wearing of traditional flowing skirts called 'Ghaghara'. The dance was originally developed by the Bhil tribe.

Correct Answer: C. M.S. Swaminathan

M.S. Swaminathan is known as the Father of the Green Revolution in India for introducing high-yielding varieties of wheat. This initiative significantly increased food grain production and made India self-sufficient. He was a renowned agricultural scientist and geneticist.

Correct Answer: D. 7.4

The normal pH of human blood is slightly basic, ranging between 7.35 and 7.45. Maintaining this narrow range is critical for the proper functioning of enzymes and organs. The body uses buffer systems to prevent drastic changes in blood pH.

Correct Answer: A. Paris

Paris is the capital and largest city of France, located on the banks of the Seine River. It is a global center for art, fashion, and culture. The city is famous for landmarks like the Eiffel Tower and the Louvre Museum.

Correct Answer: B. Gross Domestic Product

GDP stands for Gross Domestic Product, which measures the total value of goods and services produced within a country. It is a primary indicator used to gauge the health of a nation's economy. Real GDP accounts for inflation, while Nominal GDP does not.

Correct Answer: C. Indira Gandhi

Indira Gandhi was the first and, to date, the only woman Prime Minister of India. She served as Prime Minister from 1966 to 1977 and again from 1980 until 1984. She was the daughter of India's first Prime Minister, Jawaharlal Nehru.

Correct Answer: D. Longitudinal

Sound waves in air are longitudinal waves where the particles of the medium vibrate parallel to the direction of energy transport. They require a material medium like solid, liquid, or gas to travel. Sound cannot travel through a vacuum because there are no particles to vibrate.