SSC CHSL Tier 1 2013 General Awareness Questions with Solutions

Explanation

Opportunity cost is a fundamental economic concept defined as the value of the next best alternative forgone when a decision is made. For any factor of production, such as land, labor, or capital, the opportunity cost is represented by the earnings or returns it could have yielded if it had been allocated to its next best alternative employment or use rather than its current one.

Explanation

Direct or autonomous demand is the demand for goods and services that directly satisfy human wants and are desired for their own utility. It arises independently of the demand for other commodities, as these final consumer products are wanted for direct consumption to yield immediate satisfaction.

Explanation

The parliamentary system of government in India is deeply influenced by the Westminster model of the United Kingdom. During the colonial era, India had a long history of experiencing British administrative and legislative systems, particularly through various Government of India Acts. Consequently, the framers of the Indian Constitution opted for the British parliamentary system, which features a cabinet system, a real executive (the Prime Minister) accountable to the legislature, a nominal executive (the President), and a bicameral legislative structure. This system emphasizes the principles of collective responsibility of the executive to the lower house of Parliament and legislative supremacy.

Explanation

A democratic system relies on several core principles to function effectively and maintain its legitimacy. Free and fair elections are the primary mechanism of popular sovereignty, allowing citizens to hold their leaders accountable and participate in peaceful transitions of power. Equality of opportunity ensures that every individual has a fair chance to contribute to and benefit from society, reducing structural inequalities that undermine democratic participation. The protection of fundamental rights and civil liberties secures individual freedom against arbitrary state power and fosters an environment where diverse views can be expressed.

Explanation

Value added is defined as the net contribution of an enterprise to the economy during the production process. It represents the difference between the total value of the goods and services produced, known as output, and the cost of the raw materials, services, and other intermediate goods consumed in that production process, known as input.

By calculating value added as output minus intermediate input, double counting is avoided when determining the gross domestic product of an economy, as it captures only the actual enhancement of value made at each stage of production.

Explanation

In economics, price is defined as the value of a commodity or service expressed in monetary terms. It represents the quantity of money that must be given up to acquire a unit of a good or service. While value can be subjective and relates to the utility a person derives from a commodity, price is the objective measurement of that exchange value quantified in a standard currency.

Explanation

Selling cost is a key element of monopolistic competition because firms in this market structure sell differentiated products that are close substitutes for one another. To persuade consumers to purchase their specific brand over rivals, firms must invest in advertising, sales promotion, and marketing campaigns. These expenditures, collectively termed selling costs, are designed to influence consumer preferences, shift the product's demand curve outward, and make it less elastic. This non-price competition is essential for firms to establish brand loyalty and distinguish their unique offering from similar goods in the market.

Explanation

The Pallava dynasty had its capital at Kanchipuram, not Vellore, making this the only incorrectly matched pair in the list. The Maurya, Pandya, and Kakatiya kingdoms are all correctly matched with their respective capitals of Pataliputra, Madurai, and Warangal.

Explanation

The Delhi Sultanate was ruled by five successive dynasties. The Slave dynasty, also known as the Mamluk dynasty, ruled first from 1206 to 1290. It was immediately followed by the Khalji dynasty, which ruled from 1290 to 1320. The Tughlaq dynasty then succeeded the Khaljis and ruled from 1320 to 1414.

Explanation

Correct Answer: B

Tipu Sultan, the ruler of the Kingdom of Mysore, died on May 4, 1799, while defending his capital Seringapatam during the Fourth Anglo-Mysore War against the British East India Company. Since his death occurred more than half a century before the outbreak of the Revolt of 1857, he did not participate in it.

Explanation

The 42nd Constitutional Amendment Act, 1976 is widely referred to as the mini-constitution because it brought about the most extensive and sweeping changes to the Constitution of India since its adoption. Enacted during the national emergency under the Indira Gandhi administration, this amendment modified the Preamble by adding the terms socialist, secular, and integrity, introduced a new chapter on Fundamental Duties under Part IV-A, reduced the powers of the Supreme Court and High Courts regarding judicial review, and transferred five subjects from the State List to the Concurrent List. Due to the massive scale of these fundamental modifications, it is regarded as a miniature version of the constitution itself.

Explanation

Article 37 of the Constitution of India, which is contained in Part IV dealing with the Directive Principles of State Policy, explicitly declares that the provisions in this Part shall not be enforceable by any court. It further establishes that these principles are nevertheless fundamental in the governance of the country, making it the duty of the State to apply them when making laws. This declaration establishes the non-justiciable nature of the Directive Principles, distinguishing them from the legally enforceable Fundamental Rights.

Explanation

English is not included in the Eighth Schedule of the Constitution of India. Although it is widely used for administrative, judicial, and legislative purposes and serves as an official associate language under the Official Languages Act of 1963, it does not hold the status of a scheduled language. The Eighth Schedule list of official languages includes twenty-two distinct languages, but English has never been added to this constitutional schedule.

Explanation

Paddy cultivation requires highly fertile soil with a high water-retaining capacity, as rice crops need to remain submerged in water during their early growth stages. Alluvial soil, particularly clayey alluvium, is rich in humus and has a fine texture that minimizes water percolation, allowing it to hold moisture for long periods. This makes it exceptionally suited for the intensive cultivation of paddy in river valleys and deltaic regions.

Explanation

Red soil derives its distinctive red color from the presence of high amounts of iron, specifically through the process of iron oxidation, which is chemically analogous to rusting. The iron present in the crystalline and metamorphic rocks undergoes weathering and reacts with oxygen in the atmosphere and moisture in the soil. This oxidation process leads to the formation of ferric oxides, such as hematite, which diffuse through the soil and impart the characteristic reddish-brown or red hue.

Explanation

The Congo River, historically known as the Zaire River, is the only major river in the world that crosses the equator twice. It flows northward from its headwaters in the East African Rift zone, crossing the equator into the Northern Hemisphere. It then loops westward and turns southwestward, crossing the equator a second time as it heads toward its mouth at the Atlantic Ocean. This trajectory is defined by the massive, circular Congo Basin depression which the river drains.

Explanation

The Prarthana Samaj was founded by Dr. Atmaram Pandurang in Bombay on 31 March 1867. The primary objective of this reform movement was to advocate for rational worship and social reforms, which included promoting the belief in one God, opposing caste system inequalities, encouraging widow remarriage, raising the age of marriage, and promoting women's education. The organization gained further prominence and direction when prominent reformists like Mahadev Govind Ranade joined its ranks.

Explanation

The Glorious Revolution in England took place in 1688, leading to the overthrow of King James II and the establishment of a constitutional monarchy. The American War of Independence began in 1775 and lasted until 1783, resulting in the independence of the thirteen American colonies from British rule. The French Revolution started in 1789 with the storming of the Bastille, which transformed France's political landscape. The Russian Revolution occurred in 1917, overthrowing the imperial autocracy and leading to the creation of the Soviet Union.

Explanation

Indira Point, located on Great Nicobar Island in the Andaman and Nicobar Islands, is the southernmost point of India's territory. Situated at approximately 6° 45′ N latitude, this point lies in the eastern Indian Ocean and is closer to the equator than the mainland peninsula. Formerly known as Pygmalion Point, it was renamed in honor of the former Prime Minister Indira Gandhi following her visit to the lighthouse located there.

Explanation

The Jersey breed of dairy cattle originated on the Island of Jersey in the English Channel, which is a British Crown Dependency historically associated with England. This exotic breed is highly popular in crossbreeding programs worldwide to improve local dairy cattle. The Jersey breed is favored for its excellent milk production capacity, high butterfat and protein content in milk, ease of calving, and superior adaptability to diverse climatic conditions.

Explanation

Lichens are composite organisms that arise from a mutually beneficial symbiotic relationship between an alga (the phycobiont) and a fungus (the mycobiont). Within this partnership, the photosynthetic alga produces organic nutrients and energy via photosynthesis, which it shares with the fungal partner. In return, the fungus provides the physical structure, protects the alga from excessive light and desiccation, and absorbs water and essential mineral nutrients from the environment to share with the alga. This specialized association allows lichens to colonize and survive in some of the most extreme environments on Earth.

Explanation

Rice and groundnut have highly contrasting climatic, water, and soil requirements, making them incompatible for mixed cropping. Rice is a water-intensive crop that thrives in clayey soils with high water-retaining capacity and requires standing water during its early growth stages. In contrast, groundnut is extremely sensitive to waterlogging and requires well-drained, light sandy-loam soils to facilitate proper pod development underground. Excess water in a rice field would rot the groundnut pods, while dry conditions suitable for groundnut would starve the rice crop of necessary water. Therefore, these two crops cannot be grown simultaneously on the same piece of land.

Explanation

Argentina is matched with Buenos Aires, which is its federal capital and largest city. Colombia is matched with Bogota, the capital city located in the center of the country on a high plateau in the Andes. Egypt is matched with Cairo, its capital and the largest metropolitan area in the Arab world. Zimbabwe is matched with Harare, which is the capital and the most populous city of the nation.

Explanation

Betel vine (Piper betle) produces climbing roots, which are specialized adventitious roots. These roots arise from the nodes or internodes of the weak, herbaceous stem and help the plant to cling and climb up supports like trees, poles, or walls. By anchoring the vine securely to its support, these roots facilitate vertical growth, allowing the plant to reach better sunlight and air circulation.

Explanation

Chromosomes in eukaryotic cells are composed of chromatin, which is a complex combination of DNA and proteins. The DNA molecule carries the genetic information of the organism, while the proteins, primarily histones, provide the structural framework. Histones are basic proteins around which the long threads of DNA wrap to form nucleosomes. This wrapping allows the highly elongated DNA molecule to be packaged tightly and organized efficiently into the compact structure of a chromosome within the cell nucleus.

Explanation

Surface tension is the cohesive force between liquid molecules that acts to minimize the surface area of a liquid volume. For any given volume, a sphere possesses the minimum possible surface area compared to any other geometric shape. As a result, the attractive forces pull the molecules on the surface of a falling water droplet inward, causing it to naturally assume a spherical shape to minimize its surface energy.

Explanation

Penetrating power refers to the ability of radiation to pass through matter, which is inversely proportional to the mass and electrical charge of the radiation particle or wave.

Gamma (γ) radiation consists of high-energy electromagnetic waves with zero rest mass and no charge. Because they do not easily interact with matter, they have the highest penetrating power and require dense shielding like lead or concrete to be stopped.

Beta (β) radiation consists of high-speed electrons or positrons, which have a very small mass and a single unit of electrical charge. This allows them to have moderate penetrating power, capable of passing through air and skin, but they can be stopped by a thin sheet of aluminum.

Alpha (α) radiation consists of helium nuclei, which are massive compared to beta particles and carry a double positive charge. Due to their large size and high charge, they interact strongly and frequently with surrounding atoms, leading to rapid energy loss and the lowest penetrating power, easily stopped by a sheet of paper or human skin.

This gives the decreasing order of penetrating power as γ, followed by β, and then α.

Explanation

The MAX function in MS-Excel is designed to return the largest or highest numerical value from a selected range of cells or a list of supplied arguments. It processes a set of numbers and identifies the maximum numeric value while ignoring empty cells, text, and logical values in the referenced range.

Explanation

Protanopia is a type of color vision deficiency, commonly known as red-green color blindness, characterized by the complete absence of red-sensing cone cells (L-cones) in the retina. Due to the lack of these functional photoreceptors, individuals with protanopia are unable to perceive red light or see the red color. John Dalton was a pioneer in studying this hereditary condition, which is why color blindness is historically referred to as Daltonism.

Explanation

Correct Answer: D

The photoelectric effect is the phenomenon where electrons are emitted from the surface of a metal when electromagnetic radiation, such as light, of a sufficiently short wavelength shines on it. The energy of an incident photon is given by the relation E = hc/λ, where h is Planck's constant, c is the speed of light, and λ is the wavelength of the light. For an electron to be ejected from the metal surface, the energy of the incident photon must be greater than or equal to the work function of the metal, which is the minimum energy required to remove an electron. Consequently, the incident light must have a wavelength that is less than or equal to a specific threshold wavelength characteristic of that metal.

Explanation

X-rays are a high-frequency form of electromagnetic radiation. They consist of oscillating electric and magnetic fields that travel through a vacuum at the speed of light, which is approximately 3 × 10⁸ meters per second. They occupy the region of the electromagnetic spectrum between ultraviolet light and gamma rays, typically possessing wavelengths in the range of 0.01 to 10 nanometers.

Explanation

An atom is the basic unit of a chemical element, consisting of a central nucleus surrounded by a cloud of negatively charged electrons. The nucleus contains positively charged protons and electrically neutral neutrons. Together, protons, neutrons, and electrons make up the three primary subatomic particles that determine the mass, identity, and chemical properties of an atom.

Explanation

Saponification is the chemical reaction in which a triglyceride, which is a fat or oil, reacts with a strong base such as sodium hydroxide (NaOH) or potassium hydroxide (KOH) to form soap and an alcohol. Since triglycerides are triesters composed of fatty acids bonded to a glycerol backbone, the alkaline hydrolysis of these ester bonds cleaves the fatty acid chains to produce soap salts, releasing glycerol as the byproduct alcohol. Glycerol, also known as glycerin, is a trihydric alcohol with the chemical formula C₃H₈O₃.

Explanation

The equivalent weight of an element is defined as the mass of the element that combines with or displaces a standard mass of another substance, such as 1.008 parts by mass of hydrogen, 8 parts by mass of oxygen, or 35.5 parts by mass of chlorine.

The fundamental relation linking the equivalent weight, atomic weight, and valency of an element is expressed by the formula:

Equivalent weight = Atomic weight / Valency

Rearranging this formula to find the product of equivalent weight and valency gives:

Atomic weight = Equivalent weight × Valency

This formula directly shows that multiplying the equivalent weight of an element by its valency yields its atomic weight.

Explanation

Chlorofluorocarbons (CFCs), such as Freon-12, are highly stable, non-flammable, and non-toxic synthetic organic compounds. Due to their excellent thermodynamic properties and low boiling points, they have been extensively used as refrigerants in domestic refrigerators and air conditioning systems to absorb and transfer heat, enabling the cooling process.

Explanation

When a computer executes a program, the instructions and data must be loaded into Random Access Memory (RAM), which serves as the computer's primary volatile workspace. The Central Processing Unit (CPU) requires extremely high-speed access to active instructions to perform tasks efficiently. Because retrieving data from secondary storage devices is too slow to match the processing speed of the CPU, the operating system transfers the program from storage into RAM, allowing the processor to fetch and execute instructions at nanosecond speeds.

Explanation

A hybrid computer is a type of computer that integrates the properties of both analog and digital computers. It is capable of processing continuous data, which is typical of analog systems, as well as discrete data, which is characteristic of digital systems. By combining the high speed of analog computation with the superior storage, accuracy, and logical processing capabilities of digital systems, hybrid computers are exceptionally suited for complex tasks in scientific research, industrial process control, and simulated environments.

Explanation

Tritium, also known as hydrogen-3 or ³H, is a radioactive isotope of hydrogen. The nucleus of a tritium atom contains one proton and two neutrons, giving it an atomic mass of approximately 3. This is in contrast to the other isotopes of hydrogen, namely protium, which has no neutrons, and deuterium, which contains one neutron.

Explanation

Serena Williams won the 2013 French Open women's singles title, capturing her second championship at Roland Garros. She achieved this by winning the final match on June 8, 2013, which secured her 16th Grand Slam singles title.

Explanation

Nankana Sahib, originally known as Rai Bhoi Di Talwandi, is a historic city located in the Punjab province of Pakistan. It is named in honour of Guru Nanak Dev Ji, the founder of Sikhism, who was born there in 1469. The city is home to several highly revered Sikh shrines, most notably Gurdwara Janam Asthan, which marks the exact birthplace of the first Sikh Guru and serves as a major global pilgrimage site. Following the partition of British India in 1947, Nankana Sahib became a part of Pakistan.

Explanation

The Food and Agriculture Organization (FAO) is headquartered in Rome, Italy. It was established on October 16, 1945, in Quebec City, Canada, and its headquarters was subsequently relocated from Washington, D.C., to Rome in 1951.

Explanation

Grasslands are areas where the vegetation is dominated by grasses and other non-woody plants. Because they exist on landmasses rather than in water bodies, they are classified as a major type of terrestrial ecosystem. Terrestrial ecosystems are land-based communities of organisms and their interactions with the biotic and abiotic components in a given area. Grasslands occur naturally on all continents except Antarctica and typically develop in regions where rainfall is intermediate between that of deserts and forests.

Explanation

The Bhopal Gas Tragedy, which occurred on the night of December 2-3, 1984, at the Union Carbide India Limited pesticide plant in Bhopal, Madhya Pradesh, was caused by the accidental release of methyl isocyanate gas. Methyl isocyanate (CH₃NCO) is an extremely toxic, volatile, and highly reactive organic compound that was used as an intermediate in the manufacture of carbamate pesticides. A runaway exothermic reaction triggered by the entry of water into a storage tank containing the chemical led to a rapid increase in temperature and pressure, venting over 40 tons of the deadly gas into the atmosphere and resulting in one of the worst industrial disasters in history.

Explanation

K. Rahman Khan served as the Union Minister of Minority Affairs in the Government of India from 28 October 2012 to 26 May 2014 under the United Progressive Alliance (UPA-II) administration. A senior leader of the Indian National Congress and a Member of Parliament representing Karnataka in the Rajya Sabha, he held this cabinet position during the latter half of the government's tenure. His time in office was notable for initiating key policies and welfare programs aimed at minority empowerment, including overseeing the historic passage of the Waqf (Amendment) Act of 2013.

Explanation

Croatia officially became the 28th member state of the European Union on July 1, 2013. The country applied for EU membership in 2003, and after completing the negotiation process and signing the Treaty of Accession in December 2011, its accession was successfully ratified by all existing EU member states.

Explanation

Baseball is played on a baseball field or a diamond, which consists of an infield and an outfield. A court is a flat, rectangular playing surface used for sports like basketball, tennis, badminton, and volleyball. Therefore, pairing baseball with a court is incorrect.

Explanation

Ronald Reagan had a highly successful career as a Hollywood actor and television host before entering politics. He starred in more than 50 feature films and served as the president of the Screen Actors Guild. He also gained widespread television fame as the host of the popular weekly drama anthology series General Electric Theater and the western series Death Valley Days. This prominent media career made him a household name across the United States long before he was elected Governor of California and eventually the 40th President of the United States.

Explanation

The Calico Museum of Textiles is located in the Shahibaug area of Ahmedabad, Gujarat, rather than Mumbai. Established in 1949 by the industrialist Gautam Sarabhai and his sister Gira Sarabhai, it is one of the most celebrated textile museums in the world, showcasing an outstanding collection of historic Indian textiles, handicraft techniques, and regional courtly garments.

Explanation

Sweden joined the European Union in 1995 and is legally required to adopt the Euro once it meets the necessary convergence criteria under the Maastricht Treaty. However, Sweden has chosen to retain its independent monetary policy and national currency, the Swedish krona. In a referendum held in September 2003, Swedish voters rejected the adoption of the Euro. Sweden continues to maintain the krona by intentionally choosing not to join the Exchange Rate Mechanism II, which is a mandatory prerequisite for adopting the Euro.

Explanation

Bharatendu Harish Chandra is universally acknowledged as the father and pioneer of modern Hindi literature and Hindi theatre. He wrote under the pen name Rasa and introduced a major transition in Hindi writing by shifting its focus from medieval devotional, courtly, and romantic themes to contemporary social, political, and nationalistic issues. His contributions during the late nineteenth century marked the beginning of the Bharatendu Yug in Hindi literature, which laid the foundation for modern Hindi prose, drama, and journalism.