General knowledge MCQ – Change your future

1. Nirvana means to ..... ..... [Himachal Pradesh Public Service Commission Examination-2018]

Correct Answer: Correct answer is: (C) Achieve peace.

Exam Relevance: UPSC, SSC, Bank PO, State PSC

Difficulty: Easy

Concept notes: Nirvana is a term often used in Eastern religions, particularly Buddhism and Hinduism, to describe a state of liberation from suffering and the cycle of rebirth. It is commonly associated with achieving inner peace and enlightenment.

Common Mistakes: Students may confuse nirvana with materialistic goals or social achievements, which are not aligned with its spiritual meaning.

Explanations: Nirvana is a spiritual concept that signifies the ultimate goal of achieving peace and liberation from suffering. It is not related to material success or social achievements, but rather to a profound state of inner peace and enlightenment.

Option Analysis:

Option A: Making money is a materialistic goal and does not align with the spiritual concept of nirvana.
Option B: Making friends is a social achievement and does not relate to the spiritual liberation associated with nirvana.
Option C: Achieving peace is the correct interpretation of nirvana, as it represents the ultimate state of liberation and inner tranquility.
Option D: Achieving goals is a general term that can encompass various types of achievements, but it does not specifically relate to the spiritual concept of nirvana.

Mnemonic: Nirvana: No Inner Restlessness, Achieve Nirvana

2. The x-rays that emerge from the glass window of the x-ray tube are called..... [CDS Examination-2000]

Correct Answer: Correct answer is: (C) Primary radiation.

Exam Relevance: CDS Examination, GRE, MCAT

Difficulty: Easy

Concept notes: Primary radiation refers to the x-rays that are directly produced by the x-ray tube and pass through the glass window without any interaction or scattering.

Common Mistakes: Students may confuse primary radiation with scatter radiation, which is the radiation that has interacted with the material and is scattered in different directions.

Explanations: Primary radiation is the x-ray beam that emerges directly from the x-ray tube and passes through the glass window without any interaction. This is in contrast to scatter radiation, which is the result of x-rays interacting with the material and scattering in various directions. Compton radiation and coherent radiation are not terms typically used to describe the x-rays that emerge directly from the x-ray tube.

Option Analysis:

Option A: Compton radiation is the result of x-rays interacting with matter and scattering, not the initial beam from the x-ray tube.
Option B: Coherent radiation refers to radiation that maintains a consistent phase relationship, which is not the primary beam from the x-ray tube.
Option C: Primary radiation is the x-ray beam that emerges directly from the x-ray tube and passes through the glass window without any interaction.
Option D: Scatter radiation is the x-ray beam that has interacted with the material and is scattered in different directions, not the initial beam from the x-ray tube.

3. Which is the longest bridge in Malaysia? [ESIC Examination-2004]

Correct Answer: Correct answer is: (A) Sultan Abdul Halim Muadzam Shah Bridge (Penang Second Bridge).

Exam Relevance: ESIC Examination, UPSC, SSC, Banking Exams

Difficulty: Moderate

Concept notes: The Sultan Abdul Halim Muadzam Shah Bridge, also known as the Penang Second Bridge, is the longest bridge in Malaysia.

Common Mistakes: Students may confuse the longest bridge in Malaysia with other notable bridges such as the Sungai Johor Bridge or the Langkawi Sky Bridge.

Explanations: The Sultan Abdul Halim Muadzam Shah Bridge, also known as the Penang Second Bridge, spans a length of 24.8 kilometers, making it the longest bridge in Malaysia. This bridge connects the island of Penang to the mainland and is a significant transportation link in the region. The other bridges listed, such as the Sungai Johor Bridge, Langkawi Sky Bridge, and Seri Wawasan Bridge, are shorter in comparison.

Option Analysis:

Option A: Correct. The Sultan Abdul Halim Muadzam Shah Bridge is the longest bridge in Malaysia.
Option B: Incorrect. The Sungai Johor Bridge is shorter than the Sultan Abdul Halim Muadzam Shah Bridge.
Option C: Incorrect. The Langkawi Sky Bridge is a pedestrian bridge and is much shorter than the Sultan Abdul Halim Muadzam Shah Bridge.
Option D: Incorrect. The Seri Wawasan Bridge is also shorter than the Sultan Abdul Halim Muadzam Shah Bridge.

4. The Latin word formica means ant. The name formic acid is derived from this Latin word because [Himachal Pradesh Postal Circle Examination-1995]

Correct Answer: Correct answer is: (B) This acid was first obtained by the distillation of ants.

Exam Relevance: GRE, GMAT, Civil Services, Postal Exams

Difficulty: Moderate

Concept notes: Formic acid is named after the Latin word "formica," meaning ant, due to its historical extraction method.

Common Mistakes: Students may mistakenly believe the name is related to the odor or behavior of ants rather than the historical method of extraction.

Explanations: Formic acid was first obtained by the distillation of ants, specifically the wood ant (Formica rufa). This historical method of extraction led to the naming of the acid. The name "formic acid" is derived from the Latin word "formica," which means ant, reflecting the origin of the acid's discovery.

Option Analysis:

Option A: Ants are not attracted by the odor of formic acid; this is not the reason for the acid's name.
Option B: This is the correct explanation for the origin of the name formic acid.
Option C: There is no historical evidence that formic acid was used to eliminate ant-hills.
Option D: While some ants do secrete formic acid, this is not the reason for the acid's name.

Mnemonic: Formica, ants, distillation

5. Who propounded the Saptanga Theory? [General Knowledge for Karnataka High Court Examination-1990]

Correct Answer: Correct answer is: (C) Kautilya.

Exam Relevance: UPSC Civil Services, State PSC Exams, High Court Examinations

Difficulty: Moderate

Concept notes: The Saptanga Theory, also known as the seven limbs of the state, is a concept in ancient Indian political science. It outlines the seven essential elements that constitute a strong and effective state.

Common Mistakes: Students may confuse Kautilya with other ancient Indian scholars such as Manu or Charaka, who are known for their contributions in law and medicine, respectively.

Explanations: Kautilya, also known as Chanakya, is the author of the Arthashastra, a treatise on statecraft, economic policy, and military strategy. In this work, he propounded the Saptanga Theory, which includes the seven elements: King, Minister, Country, Fort, Treasury, Army, and Allies. This theory is fundamental to understanding the structure and functioning of a state in ancient Indian political thought.

Option Analysis:

Option A: Manu is known for the Manusmriti, a legal and religious text, not for the Saptanga Theory.
Option B: Charaka is known for his contributions to Ayurveda, not for political theory.
Option C: Kautilya is the correct answer as he is the author of the Arthashastra, which includes the Saptanga Theory.
Option D: Tulsidas is known for his literary works, such as the Ramcharitmanas, not for political theory.

Mnemonic: Saptanga: King, Minister, Country, Fort, Treasury, Army, Allies.

6. The longest poem ever written, epic tale of warring tribes fighting for control of India [ESIC Haryana Examination-1984]

Correct Answer: Correct answer is: (A) The Mahabharata.

Exam Relevance: UPSC, SSC, Banking Exams, State PSC

Difficulty: Moderate

Concept notes: The Mahabharata is the longest epic poem in the world, recounting the struggle between two groups of cousins, the Pandavas and the Kauravas, for the throne of Hastinapura.

Common Mistakes: Students may confuse The Mahabharata with other ancient Indian texts like The Ramayana or The Vedas.

Explanations: The Mahabharata is the longest poem ever written, consisting of over 100,000 verses. It is an epic tale of the Kurukshetra War, a conflict between two groups of cousins, the Pandavas and the Kauravas, for control of the kingdom of Hastinapura. This makes it the correct answer to the question.

Option Analysis:

Option A: The Mahabharata is the correct answer as it is the longest poem ever written and an epic tale of warring tribes fighting for control of India.
Option B: The Book of the Dead is an ancient Egyptian funerary text and not an epic poem about warring tribes in India.
Option C: The Crucible is a play by Arthur Miller set in colonial America and not an ancient Indian epic poem.
Option D: The Vedas are ancient Indian scriptures but not a single epic poem about warring tribes.

Mnemonic: Mnemonic: "Maha-long, Bharata-war"

7. What is current inflation rate in India? [IBPS PO Examination-2022]

Correct Answer: Correct answer is: (D) 3.34%.

Exam Relevance: IBPS PO, SBI PO, RBI Grade B

Difficulty: Moderate

Concept notes: The inflation rate in India is a key economic indicator that measures the rate of increase in prices of goods and services over a specific period.

Common Mistakes: Students often confuse the current inflation rate with historical rates or rates from different sources, leading to incorrect answers.

Explanations: The correct answer is 3.34% as it reflects the most recent inflation rate in India as of the time of the examination. This figure is based on the Consumer Price Index (CPI) data released by the Ministry of Statistics and Programme Implementation (MoSPI). The CPI measures the average change over time in the prices paid by households for a market basket of consumer goods and services.

Option Analysis:

Option A: 4% is not the most recent inflation rate.
Option B: 4.54% is not the most recent inflation rate.
Option C: 3% is not the most recent inflation rate.
Option D: 3.34% is the most recent inflation rate as per the latest data.

8. What is the sum of the angles of a triangle? [SSC ASI SI Examination-2013]

Correct Answer: Correct answer is: (C) 180.

Exam Relevance: SSC, GRE, GMAT, SAT

Difficulty: Very Easy

Concept notes: The sum of the interior angles of a triangle is always 180 degrees.

Common Mistakes: Students may confuse the sum of the angles of a triangle with the sum of the angles of a quadrilateral, which is 360 degrees.

Explanations: The sum of the interior angles of a triangle is a fundamental geometric property. This property is derived from the fact that a straight line forms a 180-degree angle, and the angles inside a triangle can be rearranged to form a straight line.

Option Analysis:

Option A: 75 degrees is incorrect because it is less than the sum of the angles of a triangle.
Option B: 90 degrees is incorrect because it is less than the sum of the angles of a triangle.
Option C: 180 degrees is correct as it is the sum of the interior angles of a triangle.
Option D: 360 degrees is incorrect because it is the sum of the angles of a quadrilateral, not a triangle.

Mnemonic: Triangle = 180, remember "T" for Triangle and "T" for Turn (180 degrees).

9. Fa-Hien was

Correct Answer: Correct answer is: (A) The first Buddhist pilgrim of China to visit India during the reign of Chandragupta Vikramaditya.

Exam Relevance: UPSC, Civil Services, GRE, History Exams

Difficulty: Moderate

Concept notes: Fa-Hien was a Chinese Buddhist monk who traveled to India to study and collect Buddhist texts.

Common Mistakes: Students may confuse Fa-Hien with other historical figures or pilgrims from different periods.

Explanations: Fa-Hien was a Chinese Buddhist monk who traveled to India during the 5th century CE. His journey was aimed at obtaining Buddhist texts and understanding the practices of Buddhism in India. He visited India during the reign of Chandragupta II, also known as Vikramaditya, who was a Gupta emperor. This makes Fa-Hien the first known Chinese pilgrim to visit India for Buddhist studies.

Option Analysis:

Option A: Correct. Fa-Hien was indeed the first Chinese Buddhist pilgrim to visit India during the reign of Chandragupta Vikramaditya.
Option B: Incorrect. Fa-Hien was not involved in the discovery of Puerto Rico and Jamaica, which are unrelated to his historical context.
Option C: Incorrect. Fa-Hien was a Chinese pilgrim visiting India, not an Indian pilgrim visiting China.
Option D: Incorrect. The correct information is provided in Option A.

10. Formed from dead marine organisms [Meghalaya Police Examination-1981]

Correct Answer: Correct answer is: (A) Oil and Natural Gas.

Exam Relevance: UPSC, SSC, Banking Exams, Railway Exams

Difficulty: Easy

Concept notes: Oil and natural gas are formed from the remains of marine organisms that lived millions of years ago.

Common Mistakes: Students may confuse coal, which is formed from plant matter, with oil and natural gas, which are formed from marine organisms.

Explanations: Oil and natural gas are fossil fuels that originate from the remains of marine organisms such as algae and zooplankton. These organisms were buried under layers of sediment and subjected to heat and pressure over millions of years, transforming into hydrocarbons. This process is distinct from the formation of coal, which is primarily derived from plant matter.

Option Analysis:

Option A: Correct. Oil and natural gas are formed from dead marine organisms.
Option B: Incorrect. Coal is formed from dead plant matter, not marine organisms.
Option C: Incorrect. While oil and natural gas are fossil fuels, the term "fossil fuels" includes coal, which is not formed from marine organisms.
Option D: Incorrect. The correct answer is provided in option A.

Mnemonic: Oil and gas, from the sea, not land.

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General knowledge MCQ - Set 1

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