SSC CHSL Tier 1 2016 General Awareness Questions with Solutions

Explanation

The United States dropped two atomic bombs on Japan in August 1945 during the final stages of World War II. The first bomb, named Little Boy, was a gun-type uranium-235 weapon dropped on the city of Hiroshima on August 6, 1945. The second bomb, named Fat Man, was an implosion-type plutonium-239 weapon dropped on the city of Nagasaki on August 9, 1945. These detonations remain the only uses of nuclear weapons in armed conflict.

Explanation

Pluto was discovered on February 18, 1930, by the American astronomer Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona. He identified the celestial body by using a blink comparator to systematically compare photographic plates of the night sky taken several days apart, noticing a faint, moving object beyond the orbit of Neptune. This object was subsequently named Pluto.

Explanation

Newton's law of universal gravitation states that the force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Mathematically, this relation is expressed as:

F = G × (m₁ × m₂) / r²

In this equation, F is the gravitational force, G is the gravitational constant, m₁ and m₂ are the masses of the two bodies, and r is the distance between their centers. This formula clearly demonstrates that the gravitational force F is directly proportional to the product of the masses of the two bodies (m₁ × m₂).

Explanation

Sound is a mechanical wave that propagates through the vibration of particles in a material medium. Because it relies on the physical collision and oscillation of atoms or molecules to transmit energy from one point to another, it requires a physical substance to travel. A vacuum is a space devoid of any matter, meaning there are no atoms, molecules, or particles present to compress and rarefy. Without any particles to sustain these mechanical vibrations, sound waves cannot propagate through a vacuum.

Explanation

Sarojini Naidu presided over the Kanpur session of the Indian National Congress in 1925, becoming the second woman to lead the Congress after Annie Besant in 1917, and the first Indian woman to hold the prestigious post. She was an outstanding poet, orator, and freedom fighter who played a vital role in India's struggle for independence, including her active participation in the Salt Satyagraha and the Civil Disobedience Movement.

Explanation

Gujarat has 26 parliamentary constituencies allocated to it in the Lok Sabha. These seats represent the different territorial constituencies of the state in the lower house of the Parliament of India.

Explanation

Geet Sethi is a legendary Indian professional player of English billiards who dominated the sport throughout the 1990s. He won the World Professional Billiards Championship title eight times and the IBSF World Billiards Championship (Amateur) title three times. He also established a world record in 1992 by scoring a break of 1276 points under the two-pot rule. In recognition of his exceptional achievements, he was honored with the Rajiv Gandhi Khel Ratna award in 1992-1993 and the Padma Shri in 1986.

Explanation

Chetan Bhagat is the author of the bestselling 2009 novel Two States: The Story of My Marriage. The book is a partly autobiographical account of the author's own love story, following a Punjabi boy and a Tamil Brahmin girl who meet at the Indian Institute of Management Ahmedabad and face cultural conflicts as they strive to get their families' blessings for their marriage.

Explanation

The Group of Monuments at Hampi was the capital of the Vijayanagara Empire, the last great Hindu kingdom in South India, which flourished between the 14th and 16th centuries. Situated on the banks of the Tungabhadra River in Karnataka, Hampi is highly revered in Hindu mythology as Pampa Devi Tirtha Kshetra and the legendary Kishkindha from the Ramayana. This UNESCO World Heritage Site comprises extensive ruins of grand Dravidian temples, shrines, and sacred structures. Prominent Hindu monuments within the complex include the active Virupaksha Temple dedicated to Lord Shiva, the Vijaya Vittala Temple, and massive monolithic sculptures of Ganesha and Narasimha.

Explanation

Lal Bahadur Shastri, the second Prime Minister of India, was the first person to be awarded the Bharat Ratna posthumously in 1966. Originally, the statutes of the Bharat Ratna did not allow for posthumous awards when the honor was instituted in 1954. However, the rules were amended in January 1966, allowing the prestigious decoration to be conferred on individuals after their demise. Lal Bahadur Shastri passed away in Tashkent on January 11, 1966, following the signing of the Tashkent Declaration, and was subsequently honored with India's highest civilian award later that year in recognition of his exceptional leadership and service to the nation.

Explanation

The liver is the largest gland in the human body and is responsible for producing and secreting bile. Bile is a digestive fluid composed of bile salts, water, cholesterol, and bile pigments like bilirubin and biliverdin. Hepatocytes in the liver synthesize bile, which is then drained via hepatic ducts and stored in the gallbladder. During digestion, bile is released into the duodenum of the small intestine to emulsify fats, breaking down large lipid droplets into smaller micelles. This emulsification process increases the surface area of the lipids, allowing pancreatic lipases to digest them more efficiently.

Explanation

Ferns are vascular, spore-bearing plants that belong to the division Pteridophyta. They represent the first terrestrial plants to evolve a well-developed vascular system consisting of xylem and phloem for transporting water, minerals, and nutrients throughout the plant body. Ferns have differentiated plant bodies with true roots, stems, and leaves, and they reproduce through spores produced in structures called sporangia, rather than through seeds.

Explanation

Alexander Fleming discovered penicillin, the first effective natural antibiotic, in 1928 at St. Mary's Hospital in London. He observed that a contaminating green mold, Penicillium notatum, had inhibited the growth of Staphylococcus bacteria on a culture plate. This led to the isolation of the active antibacterial substance, which he named penicillin. His pioneering discovery revolutionized medicine by introducing a powerful tool to combat bacterial infections and significantly lowering global mortality rates from infectious diseases. Fleming was awarded the Nobel Prize in Physiology or Medicine in 1945 for this monumental achievement.

Explanation

Methanol, also known as methyl alcohol, is the simplest alcohol. It consists of a single carbon atom bonded to three hydrogen atoms and one hydroxyl group, giving it the chemical formula CH₃OH.

Explanation

Atoms form chemical bonds to achieve a state of minimum potential energy, which corresponds to maximum stability. In nature, physical systems tend to progress toward states of lower energy. When isolated atoms approach each other and interact, the attractive forces between the nuclei of one atom and the electrons of another lead to the release of energy. This release decreases the net potential energy of the combined system. The resulting bonded state is significantly more stable than the individual, separate atoms, typically allowing them to achieve a stable outer shell of electrons similar to that of a noble gas.

Explanation

A markup language is a system or grammar used to annotate a document by inserting tags or symbols that are syntactically distinguishable from the content itself. These annotations direct the display, structure, or formatting of the document without appearing as part of the actual text when rendered. HTML, which stands for HyperText Markup Language, is a prime example of this, using tags enclosed in angle brackets to define structure and formatting.

Explanation

Gaur dance, also known as Gaur Maria dance, is a celebrated ritualistic folk dance originating from the Bastar region of Chhattisgarh. It is primarily performed by the Bison Horn Maria tribe, a sub-tribe of the Gond community, on joyous occasions such as weddings and festivals.

The dance derives its name from the Gaur, or Indian bison, which is considered a symbol of strength and forest spirit. During the performance, male dancers wear elaborate head-dresses decorated with the horns of the Gaur, stringed cowries, and peacock feathers. The dancers imitate the movements of a bison, swaying and charging in a rhythmic pattern, accompanied by the deep beats of large brass drums and flutes, while women join the circle carrying dancing sticks called Tirududi.

Explanation

The marginal resource cost (MRC) represents the change in total cost that results from hiring one additional unit of labor.

Initially, the total cost of hiring 8 craftsmen at ₹400 per person per day is: TC(8) = 8 × 400 = ₹3200

When the 9th craftsman is hired, the wage rate for all 9 craftsmen increases to ₹450 per day. The new total cost is: TC(9) = 9 × 450 = ₹4050

The marginal resource cost of hiring the 9th craftsman is the difference between the new total cost and the original total cost: MRC = TC(9) - TC(8) = 4050 - 3200 = ₹850

Explanation

Structural unemployment occurs when there is a fundamental mismatch between the skills of the workforce and the requirements of the available jobs in the economy. This type of unemployment is typically long-term and is driven by structural shifts such as technological advances, automation, and industrial reorganization. When an industry undergoes modernization or restructuring, existing jobs may be eliminated or changed, requiring different skills that the current labor force does not possess, independent of short-term business cycle fluctuations in aggregate demand or supply.

Explanation

Distilled water is produced through the process of distillation, which involves heating water to its boiling point to create steam and then cooling that steam to condense it back into a liquid state in a separate, sterile container. During this phase transition, dissolved solids, heavy metals, salts, organic compounds, bacteria, and other microorganisms do not vaporize because they have much higher boiling points than water. As a result, these impurities are left behind in the boiling chamber, leaving the newly condensed water in its purest state, entirely free from any dissolved substances or biological contaminants.

Explanation

Milbemycins (frequently referred to as milbeycin or milbemectin) are a group of macrocyclic lactones produced via the fermentation of the soil bacterium Streptomyces. They exhibit potent acaricidal, insecticidal, and nematicidal activities, making them highly effective biopesticides. In crop protection, they are widely utilized to eradicate agricultural pests such as spider mites, thrips, leafminers, and nematodes. They function by binding to glutamate-gated chloride channels in the nervous system of invertebrates, causing paralysis and eventual death of the target pests.

Explanation

Justice Leila Seth made history when she was appointed as the Chief Justice of the Himachal Pradesh High Court on August 5, 1991, becoming the first woman to hold the position of Chief Justice of a state High Court in India. Prior to this landmark appointment, she was also the first woman judge of the Delhi High Court. Her distinguished legal career included significant contributions to law reforms, particularly in the amendment of the Hindu Succession Act, which gave daughters equal rights in ancestral property.

Explanation

Neptune is the farthest planet from the Sun in our solar system, orbiting at an average distance of about 4.5 billion kilometers. Because of this vast distance, it receives a very small amount of solar radiation, resulting in extremely low temperatures. The average temperature in Neptune's upper atmosphere is around -214 °C. As an ice giant, Neptune is composed largely of water, ammonia, and methane ices, and its thick atmosphere is dominated by hydrogen, helium, and methane, which keeps the planet in a permanent state of deep freeze.

Explanation

Vienna is the capital, largest city, and one of the nine states of Austria. It serves as the country's primary political, economic, and cultural center. Located in the eastern part of Austria on the Danube River, Vienna has a rich history as the former capital of the Austro-Hungarian Empire and is internationally renowned for its architectural heritage, classical music legacy, and high quality of life.

Explanation

Chandragupta Maurya was born in 340 BC in Pataliputra, located in modern-day Bihar. He was the founder of the Mauryan Empire, establishing it around 322 BC after defeating the Nanda dynasty under the guidance of his mentor and advisor, Chanakya. His reign marked the first time in history that most of the Indian subcontinent was unified under a single administration. He ruled until approximately 297 BC when he abdicated the throne in favor of his son, Bindusara, and embraced Jainism.

Explanation

Jahangir, born as Nur-ud-din Muhammad Salim, was the fourth Mughal emperor, who ruled the Mughal Empire from 1605 until his death in 1627. He succeeded his father, Akbar the Great, and continued the administrative and territorial expansion of the Mughal dynasty in the Indian subcontinent. His reign is particularly famous for its patronage of arts, painting, and the construction of majestic monuments and gardens.

Explanation

Nicolaus Copernicus was a Polish astronomer who formulated the heliocentric model of the universe. In his work, De revolutionibus orbium coelestium, published in 1543, he presented the detailed mathematical and astronomical theory that the Earth and other planets revolve around the Sun. This concept directly challenged the long-held geocentric view that placed the Earth at the center of the universe, sparking the Copernican Revolution and establishing the foundation for modern astronomy.

Explanation

The path followed by an object that is launched, thrown, or projected into the air and moves under the influence of gravity is defined as its trajectory. In classical mechanics, when air resistance is neglected, this path is parabolic in shape, governed by the equations of projectile motion.

Explanation

The Bahujan Samaj Party was founded on April 14, 1984, by Kanshi Ram. The party was formed to represent the Bahujans, referring to Scheduled Castes, Scheduled Tribes, Other Backward Classes, and religious minorities. Kanshi Ram chose April 14 for the party's establishment to mark the birth anniversary of Dr. B. R. Ambedkar, whose social and political philosophy deeply inspires the party's ideology.

Explanation

The official debates of the Lok Sabha are compiled, edited, and printed in both Hindi and English. According to the provisions of Article 120 of the Constitution of India and the Official Languages Act, 1963, the business of the Indian Parliament is transacted in both Hindi and English. To facilitate this, the Lok Sabha Secretariat publishes and prints the official reports of the daily proceedings of the House in bilingual formats, making them available in both of these official languages.

Explanation

Brendon McCullum is a renowned former international cricketer who represented New Zealand in all three formats of the game. He served as the captain of the New Zealand national team and is widely celebrated for his aggressive batting style and exceptional wicket-keeping skills. Under his captaincy, New Zealand reached their first-ever Cricket World Cup final in 2015. McCullum also holds numerous records in international cricket, including scoring the fastest century in Test history in 2016.

Explanation

Alexandre Dumas, the celebrated French author, wrote the historical adventure novel The Three Musketeers. First published in serial form in 1844, the novel is set in the seventeenth century and recounts the adventures of a young man named dArtagnan after he leaves home to travel to Paris, hoping to join the Musketeers of the Guard. Although dArtagnan is unable to join this elite corps immediately, he befriends the three most formidable musketeers of the age—Athos, Porthos, and Aramis—and gets involved in affairs of state and court.

Explanation

Chhatrapati Shivaji Terminus, formerly known as Victoria Terminus and located in Mumbai, was designated as a UNESCO World Heritage Site in 2004. Designed by the British architect F. W. Stevens, this historic terminal station is an outstanding example of Victorian Gothic Revival architecture blended with traditional Indian architectural elements. Its construction began in 1878 to celebrate the Golden Jubilee of Queen Victoria and was completed in 1887, serving as a landmark achievement in late 19th-century global railway technology and structural design.

Explanation

Mother Teresa was awarded the Nobel Peace Prize in 1979 for her outstanding humanitarian work and efforts to overcome poverty and distress. Having moved to India in 1929, she founded the Missionaries of Charity in Calcutta in 1950 and became a naturalized Indian citizen in 1948, making her the first Indian woman to receive this prestigious honor.

Explanation

The symbiotic bacteria present in the human large intestine, particularly Escherichia coli and species of Bacteroides, synthesize Vitamin K (specifically Vitamin K₂ or menaquinone). This synthesized Vitamin K is absorbed in the colon and contributes to meeting the body's daily requirement, playing an essential role in blood coagulation and bone metabolism.

Explanation

Phytomorphology, also known as plant morphology, is the branch of botany that deals with the study of the physical form, external structure, and developmental patterns of plants. The term is derived from the Greek words phyto, meaning plant, and morphē, meaning form. It focuses on identifying and describing the shape, size, and structural features of different plant parts, such as leaves, stems, roots, flowers, and fruits, helping in classification and understanding evolutionary relationships.

Explanation

Nephrons are the microscopic structural and functional units of the kidneys. Each kidney contains approximately one million of these units, which are responsible for filtering blood and forming urine. A nephron is composed of a renal corpuscle, consisting of the glomerulus and Bowman's capsule, and a renal tubule. It performs the vital functions of glomerular filtration, tubular reabsorption, and tubular secretion to eliminate waste products, regulate blood volume and pressure, and maintain electrolyte and fluid balance in the body.

Explanation

Acetic acid is a simple carboxylic acid with the chemical formula CH₃COOH. It consists of a methyl group (CH₃) directly bound to a carboxyl functional group (COOH), which makes it a weak acid that partially dissociates in aqueous solution.

Explanation

Borax is the common name for sodium tetraborate decahydrate, which has the chemical formula Na₂B₄O₇·10H₂O. It is a naturally occurring mineral compound composed of sodium, boron, oxygen, and water. This compound typically forms as monoclinic crystals and is widely used in domestic and industrial processes, serving as an effective cleaning agent, a pH buffer, a water softener, and a metallurgical flux to lower the melting point of metal oxides during soldering or welding.

Explanation

An Application Service Provider (ASP) is a business that provides computer-based services to customers over a network, typically the internet. This model allows organizations to access and use software applications on a subscription basis, eliminating the need to install, maintain, and support those applications on their own local servers. This service delivery model serves as a direct precursor to modern cloud-based Software as a Service (SaaS) solutions.

Explanation

Giddha is a traditional, vibrant folk dance performed by women in the Punjab region. It is highly energetic and captures the joy of festive and social occasions like weddings, the harvest festival, and the teeyan festival. The dance is performed in a circle and is accompanied by rhythmic clapping and the singing of traditional short folk verses known as bolis, reflecting the rich cultural heritage and celebratory spirit of Punjab.

Explanation

The formula for the price elasticity of demand is:

Price Elasticity of Demand = Percentage Change in Quantity Demanded / Percentage Change in Price

Given that the price elasticity of demand is -1.25 and the price is lowered by 6.4% (which is represented as -6.4%):

-1.25 = Percentage Change in Quantity Demanded / -6.4%

Solving for the percentage change in quantity demanded:

Percentage Change in Quantity Demanded = -1.25 × -6.4% = 8%

This represents an 8% increase in the quantity sold.

Explanation

Using the Quantity Theory of Money equation: M × V = P × Y

Here, M represents the money supply, V is the velocity of circulation of money (assumed to be stable), P is the price level, and Y is the real GDP (real output).

Taking the percentage change of each variable over time, the equation can be written as: Percentage Change in M + Percentage Change in V = Percentage Change in P + Percentage Change in Y

Assuming the velocity of money remains constant, the percentage change in V is zero, which simplifies the relation to: Percentage Change in P = Percentage Change in M - Percentage Change in Y

Since the percentage change in P represents the rate of inflation, the equation shows that if the growth rate of the money supply (M) is faster than the growth rate of real GDP (Y), the rate of inflation will be positive. This excess growth in money supply relative to real economic output increases aggregate demand, driving up the general price level.

Explanation

Algae are autotrophic organisms that contain chlorophyll, allowing them to perform photosynthesis. They capture solar energy and use carbon dioxide and water to synthesize organic compounds, producing their own food and releasing oxygen into the environment. In aquatic and terrestrial ecosystems, they form the foundation of the food web by serving as primary producers, providing the essential energy and nutrients that support other trophic levels.

Explanation

The Sundarbans National Park, located in West Bengal, India, shares its boundary with Bangladesh. It is contiguous with the Sundarban Reserve Forest in Bangladesh, and together they form the largest deltaic mangrove forest ecosystem in the world, situated at the confluence of the Ganges, Brahmaputra, and Meghna rivers on the Bay of Bengal.

Explanation

An Automated Teller Machine is an electronic telecommunications device that enables bank customers to perform financial transactions, such as cash withdrawals, deposits, funds transfers, or account inquiries, without the need for a human cashier or bank teller. Introduced to automate traditional banking services, it provides twenty-four-hour access to financial accounts using a coded card and personal identification number.

Explanation

Neptune is the fourth largest planet in the Solar System by physical size, which is determined by its radius or diameter. The planetary size ranking from largest to smallest is Jupiter, Saturn, Uranus, Neptune, Earth, Venus, Mars, and Mercury. With an equatorial radius of approximately 24,622 kilometers, Neptune is slightly smaller than Uranus but is the fourth largest overall.

Explanation

Abu Dhabi is the capital and the second-most populous city of the United Arab Emirates. Located on an island in the Persian Gulf off the central-western coast, it serves as the seat of the UAE government, housing the federal government offices, the United Arab Emirates Cabinet, and the President of the UAE.

Explanation

Under Emperor Akbar's administration, the Mir Bakshi was the head of the military department. The Mir Bakshi was responsible for the recruitment of soldiers, maintenance of the army and royal guards, and implementation of the Mansabdari system. Additionally, the Mir Bakshi served as the paymaster general of the Mughal Empire, supervising military accounts and issuing pay bills after inspection of the troops.

Explanation

Chhatrapati Shivaji Maharaj is widely regarded as the pioneer of guerrilla warfare in India, locally referred to as Ganimi Kava. He designed and implemented highly systematic guerrilla tactics to overcome the superior numbers and resources of his adversaries. By utilizing the rugged topography of the Western Ghats, his forces executed lightning-fast raids, planned ambushes, and hit-and-run maneuvers, avoiding large-scale open battlefield confrontations. This strategic approach enabled the Marathas to capture numerous strategic hill forts, disrupt enemy supply lines, and successfully lay the foundations of the Maratha Empire.