RRB ALP — Set 28

Q: Which part of the human eye is responsible for the color of the eye?

Iris. The iris is the pigmented part of the eye that controls the diameter of the pupil. It contains melanocytes which determine the specific eye color of an individual. This part regulates the amount of light entering the eye.

Q: Who was the first female Governor of an Indian state?

Sarojini Naidu. Sarojini Naidu served as the Governor of the United Provinces from 1947 to 1949. She was famously known as the 'Nightingale of India' for her literary contributions. She was also the first Indian woman to become the President of the Indian National Congress.

Q: The Hirakud Dam is primarily used for the irrigation of which state?

Odisha. Hirakud Dam is built across the Mahanadi River in the state of Odisha. It provides water for agricultural irrigation to millions of hectares in the region. It is one of the first major multipurpose river valley projects started after independence.

Q: Which gas is used in fire extinguishers because it does not support combustion?

Carbon Dioxide. Carbon dioxide displaces oxygen around the fire and cuts off the fuel's contact with air. It is non-flammable and heavier than oxygen. This gas is effective for electrical fires as it does not conduct electricity.

Q: The Thomas Cup is associated with which of the following sports?

Badminton. The Thomas Cup is the premier international team competition for men's badminton. It was first held in 1948 and is conducted every two years. India won its first-ever Thomas Cup title in 2022 by defeating Indonesia.

40 questions

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Which part of the human eye is responsible for the color of the eye?

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Correct Answer: A. Iris

The iris is the pigmented part of the eye that controls the diameter of the pupil. It contains melanocytes which determine the specific eye color of an individual. This part regulates the amount of light entering the eye.

Who was the first female Governor of an Indian state?

💡

Correct Answer: B. Sarojini Naidu

Sarojini Naidu served as the Governor of the United Provinces from 1947 to 1949. She was famously known as the 'Nightingale of India' for her literary contributions. She was also the first Indian woman to become the President of the Indian National Congress.

The Hirakud Dam is primarily used for the irrigation of which state?

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Correct Answer: C. Odisha

Hirakud Dam is built across the Mahanadi River in the state of Odisha. It provides water for agricultural irrigation to millions of hectares in the region. It is one of the first major multipurpose river valley projects started after independence.

Which gas is used in fire extinguishers because it does not support combustion?

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Correct Answer: D. Carbon Dioxide

Carbon dioxide displaces oxygen around the fire and cuts off the fuel's contact with air. It is non-flammable and heavier than oxygen. This gas is effective for electrical fires as it does not conduct electricity.

The Thomas Cup is associated with which of the following sports?

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Correct Answer: A. Badminton

The Thomas Cup is the premier international team competition for men's badminton. It was first held in 1948 and is conducted every two years. India won its first-ever Thomas Cup title in 2022 by defeating Indonesia.

Who led the Salt Satyagraha in the state of Tamil Nadu?

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Correct Answer: B. C. Rajagopalachari

C. Rajagopalachari organized a salt march from Trichinopoly to Vedaranyam in 1930. This march was inspired by Mahatma Gandhi's Dandi March in Gujarat. He was later appointed as the last Governor-General of India.

Which planet has the largest number of known natural satellites (moons) as of recent data?

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Correct Answer: C. Saturn

Saturn has overtaken Jupiter with the discovery of numerous smaller moons in its orbit. Titan is the largest moon of Saturn and the second-largest in the entire solar system. These moons range from large icy worlds to tiny fragments within the rings.

What is the maximum number of members that can be nominated by the President to the Rajya Sabha?

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Correct Answer: D. 12 members

The President nominates 12 members who have special knowledge in fields like art, science, and literature. This provision ensures that eminent personalities contribute to the legislative process. These members serve a six-year term similar to elected members.

What is the scientific name of the process by which a solid directly changes into a gas?

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Correct Answer: A. Sublimation

Sublimation occurs when a substance skips the liquid phase and turns directly from solid to vapor. Naphthalene balls and camphor are common examples of substances that undergo this process. This phenomenon is used in freeze-drying food products.

Mohenjo-daro is located on the banks of which river?

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Correct Answer: B. Indus

Mohenjo-daro was one of the largest settlements of the ancient Indus Valley Civilization. It is situated in the Larkana district of Sindh in modern-day Pakistan. The site is famous for its advanced urban planning and the Great Bath.

Which state has the lowest population density in India according to the 2011 Census?

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Correct Answer: C. Arunachal Pradesh

Arunachal Pradesh has a population density of only about 17 people per square kilometer. This is due to its vast hilly terrain and dense forest cover. West Bengal has one of the highest population densities among Indian states.

Which Article of the Indian Constitution empowers the President to declare a National Emergency?

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Correct Answer: D. Article 352

Article 352 can be invoked by the President if the security of India is threatened by war or armed rebellion. It was famously declared in India between 1975 and 1977. The declaration must be approved by both Houses of Parliament within one month.

Who is credited with the invention of the Telephone?

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Correct Answer: A. Alexander Graham Bell

Alexander Graham Bell was granted the first US patent for the telephone in 1876. He worked extensively on elocution and speech to help the deaf community. His first successful transmission was to his assistant Thomas Watson.

In which city was the Indian National Congress founded in 1885?

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Correct Answer: B. Mumbai

The first session of the Indian National Congress was held at Gokuldas Tejpal Sanskrit College in Mumbai. Womesh Chandra Bonnerjee was elected as the first President of the party. The meeting was attended by 72 delegates from across India.

Which Indian city is famously known as the 'Pink City'?

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Correct Answer: C. Jaipur

Jaipur was painted pink in 1876 to welcome the Prince of Wales, Edward VII. Pink is historically considered the color of hospitality in the local culture. It is the capital city of Rajasthan and a UNESCO World Heritage site.

What is the currency of Japan?

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Correct Answer: D. Yen

The Japanese Yen is the third most traded currency in the foreign exchange market. It was officially adopted by the Meiji government in 1871. The Yen symbol is denoted as ¥ and is issued by the Bank of Japan.

Which vitamin is synthesized by the human body when exposed to sunlight?

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Correct Answer: A. Vitamin D

Vitamin D is produced in the skin through a chemical reaction triggered by UV rays. It is essential for the absorption of calcium and maintaining strong bones. Lack of this vitamin can lead to bone deformities like osteoporosis.

Who was the first Mughal Emperor to sit on the Peacock Throne?

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Correct Answer: B. Shah Jahan

Shah Jahan commissioned the construction of the jewel-encrusted Peacock Throne in the 17th century. It was originally kept in the Red Fort in Delhi before being looted by Nadir Shah. It is considered one of the most expensive thrones ever created.

The Mettur Dam is built across which of the following rivers?

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Correct Answer: C. Kaveri

Kaveri 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 Kaveri 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 of the following is a fundamental unit of length in the SI system?

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Correct Answer: D. Meter

The meter is the base unit of length used globally for scientific measurements. It was originally defined as one ten-millionth of the distance from the equator to the North Pole. Today, it is defined based on the distance light travels in a vacuum.

Who is the author of the patriotic poem 'Saare Jahan Se Achha'?

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Correct Answer: A. Muhammad Iqbal

Muhammad Iqbal wrote this Urdu poem in 1904 as a children's anthem. It is also known as 'Tarana-e-Hindi' and remains a popular patriotic song in India. He was a prominent philosopher and poet from the Punjab region.

Which gas is primarily responsible for the 'Greenhouse Effect' on Earth?

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Correct Answer: B. Carbon Dioxide

Carbon dioxide traps heat in the atmosphere, leading to a rise in the planet's temperature. While essential for life, excessive levels due to human activity cause global warming. Methane and nitrous oxide are also significant greenhouse gases.

Which layer of the Earth's atmosphere contains the Ozone Layer?

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Correct Answer: C. Stratosphere

The stratosphere is the second layer of the atmosphere and contains the highest ozone concentration. This layer absorbs most of the Sun's harmful ultraviolet (UV) radiation. Commercial jet aircraft usually fly in this layer to avoid turbulence.

The 'Panchayati Raj' system was first introduced in which Indian state?

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Correct Answer: D. Rajasthan

Rajasthan was the first state to adopt the three-tier Panchayati Raj system in 1959. It was inaugurated by Prime Minister Jawaharlal Nehru in the Nagaur district. The system was later constitutionally mandated by the 73rd Amendment.

What is the primary function of Red Blood Cells (RBCs)?

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Correct Answer: A. Transporting Oxygen

RBCs contain a protein called hemoglobin that binds with oxygen molecules. They carry oxygen from the lungs to all parts of the body and return carbon dioxide. These cells have a concave shape and lack a nucleus.

Who was the first woman to win a Nobel Prize for Peace?

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Correct Answer: B. Bertha von Suttner

Bertha von Suttner was awarded the Nobel Peace Prize in 1905 for her anti-war activism. She was the first female recipient of the Peace Prize and the second female Nobel laureate after Marie Curie. Mother Teresa won the same prize in 1979.

Which canal is known as the 'Lifeline of Rajasthan'?

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Correct Answer: C. Indira Gandhi Canal

Indira Gandhi Canal is the longest canal in India and brings water to the Thar Desert. It draws its water from the Harike Barrage at the confluence of the Sutlej and Beas. It has transformed the arid landscape of western Rajasthan into fertile land.

At what temperature does Fahrenheit and Celsius scales show the same value?

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Correct Answer: D. -40 degrees

The Fahrenheit and Celsius temperature scales show the same reading at -40 degrees. At -40 degrees, both scales coincide, making this a unique crossover point. This can be verified using the conversion formula: °F = (°C × 9/5) + 32, which gives -40 on both sides.

Which hormone is known as the 'Fight or Flight' hormone?

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Correct Answer: A. Adrenaline

Adrenaline is released by the adrenal glands during stressful or dangerous situations. It increases heart rate and blood flow to muscles to prepare the body for action. This physiological response helps in survival during sudden emergencies.

The first session of the First Lok Sabha was held in which year?

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Correct Answer: B. 1952

The first general elections in independent India were held between October 1951 and February 1952. The first session of the newly elected Lok Sabha took place on May 13, 1952. G.V. Mavalankar was the first Speaker of the Lok Sabha.

Which state is the largest producer of bauxite in India?

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Correct Answer: C. Odisha

Odisha accounts for nearly half of India's total bauxite production and reserves. Bauxite is the primary ore used to produce aluminum. Major mining regions include Kalahandi and Sambalpur districts.

Under the Indian Constitution, the 'Residual Powers' belong to whom?

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Correct Answer: D. Central Government

Residual powers are those subjects that are not listed in the Union, State, or Concurrent lists. Article 248 grants the Parliament the exclusive power to make laws on these matters. This reflects the strong federal structure of the Indian government.

Which acid is found in vinegar?

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Correct Answer: A. Acetic Acid

Acetic acid gives vinegar its characteristic sour taste and pungent smell. It is produced by the fermentation of ethanol by acetic acid bacteria. It is widely used as a food preservative and for cleaning purposes.

The Champaran Satyagraha of 1917 was related to the cultivation of which crop?

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Correct Answer: B. Indigo

Farmers in Champaran were forced to grow indigo under the oppressive Tinkathia system. Mahatma Gandhi launched his first Satyagraha in India to fight for their rights. The movement eventually led to the abolition of this forced cultivation.

Which layer of the Sun is visible to the human eye during a total solar eclipse?

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Correct Answer: C. Corona

The corona is the outermost layer of the Sun's atmosphere and appears as a white halo. It is usually hidden by the bright light of the photosphere. This region is significantly hotter than the visible surface of the Sun.

Who was the first Indian to win an individual Olympic gold medal?

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Correct Answer: D. Abhinav Bindra

Abhinav Bindra won the gold medal in the 10m Air Rifle event at the 2008 Beijing Olympics. This was India's first individual gold medal in the history of the Olympic Games. He is a professional shooter and a recipient of the Padma Bhushan.

What is the pH value of gastric juice produced in the human stomach?

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Correct Answer: A. Between 1.5 and 3.5

Between 1.5 and 3.5 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 Between 1.5 and 3.5 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 Sultan of Delhi shifted his capital from Delhi to Daulatabad?

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Correct Answer: B. Muhammad bin Tughluq

Muhammad bin Tughluq ordered the mass migration of the population to Daulatabad in 1327. He intended to govern the Deccan region more effectively from a central location. The project failed due to the harsh journey and was eventually abandoned.

Which state has the highest percentage of forest cover in India as of current reports?

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Correct Answer: C. Mizoram

Mizoram consistently leads the country in terms of forest cover relative to its total geographical area. Over 80% of the state is covered by diverse types of forests. Madhya Pradesh has the largest forest area in terms of total size.

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

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Correct Answer: D. 25 years

Any citizen of India who is at least 25 years old can contest elections for the Lok Sabha. For the Rajya Sabha, the minimum age requirement is 30 years. This rule ensures a balance of youth and experience in the lower house.