General knowledge MCQ – Change your future

731. What is the theme of World Environment day 2021? [Andhra Pradesh PSC Examination-2016]

Correct Answer: Correct answer is: (A) Ecosystem Restoration.

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

Difficulty: Moderate

Concept notes: Ecosystem restoration involves the process of assisting the recovery of ecosystems that have been degraded, damaged, or destroyed. It aims to restore the ecological functions and biodiversity of these systems.

Common Mistakes: Students may confuse the theme with previous years' themes, such as "Beat Plastic Pollution" from 2018.

Explanations: The theme of World Environment Day 2021 was "Ecosystem Restoration." This theme emphasizes the importance of restoring degraded ecosystems to improve biodiversity and ecological functions. It aligns with global efforts to combat environmental degradation and promote sustainable practices.

Option Analysis:

Option A: Correct. Ecosystem Restoration was the theme for World Environment Day 2021.
Option B: Incorrect. "Beat Plastic Pollution" was the theme for World Environment Day 2018.
Option C: Incorrect. "Green Economy" is a concept but not the specific theme for World Environment Day 2021.
Option D: Incorrect. "Desertification" is a significant environmental issue but not the theme for World Environment Day 2021.

Mnemonic: Restore, Recover, Rejuvenate

732. What is the full form of "LOI"? [PPSC Examination-1990]

Correct Answer: Correct answer is: (B) Letter Of Intent.

Exam Relevance: PPSC, UPSC, SSC, Banking Exams

Difficulty: Easy

Concept notes: LOI stands for Letter of Intent, which is a document expressing an intention to enter into an agreement in the future.

Common Mistakes: Students may confuse LOI with Letter of Inquiry, which is a different document used to request information or clarification.

Explanations: LOI is a formal document that outlines the preliminary agreement between two parties before a formal contract is drawn up. It is commonly used in business transactions, real estate, and other legal agreements to express the intention to proceed with a deal.

Option Analysis:

Option A: Letter of Inquiry is incorrect as it refers to a request for information, not an intention to enter into an agreement.
Option B: Letter of Intent is the correct full form of LOI, as it signifies the preliminary agreement between parties.
Option C: Lack of Investment is incorrect as it does not relate to the formal document expressing an intention to enter into an agreement.
Option D: Loss of Investment is incorrect as it does not relate to the formal document expressing an intention to enter into an agreement.

Mnemonic: LOI: Let's Outline Intent

733. A deficiency of thiamin produces the disease known as [RBI Grade B Officer Examination-2017]

Correct Answer: Correct answer is: (D) Beri-beri.

Exam Relevance: RBI Grade B Officer Examination, UPSC, SSC, Banking Exams

Difficulty: Easy

Concept notes: Thiamin, also known as vitamin B1, is essential for carbohydrate metabolism and nerve function. A deficiency in thiamin leads to a disease called beri-beri, which affects the cardiovascular and nervous systems.

Common Mistakes: Students may confuse beri-beri with other vitamin deficiencies, such as scurvy, which is caused by a deficiency in vitamin C.

Explanations: Thiamin deficiency results in beri-beri, a disease characterized by symptoms such as edema, heart failure, and neurological disorders. This is a well-established medical fact and is a common topic in general knowledge and nutrition exams.

Option Analysis:

Option A: Scurvy is caused by a deficiency in vitamin C, not thiamin.
Option B: Anemia is typically caused by a deficiency in iron or vitamin B12, not thiamin.
Option C: Cataract is a condition affecting the eye and is not related to thiamin deficiency.
Option D: Beri-beri is the correct disease caused by thiamin deficiency.

734. Which of the following is a popular Programming Language for developing multimedia Web pages, Websites and web-Based applications? [General Knowledge for Indian Service Accounts (ICAS) Examination-1984]

Correct Answer: Correct answer is: (B) JAVA.

Exam Relevance: ICAS, UPSC, GATE, GRE

Difficulty: Moderate

Concept notes: Java is a versatile programming language widely used for developing multimedia web pages, websites, and web-based applications due to its platform independence and rich set of libraries.

Common Mistakes: Students may confuse Java with other programming languages like COBOL or ASSEMBLER, which are not typically used for web development.

Explanations: Java is a popular programming language for developing multimedia web pages, websites, and web-based applications because it offers platform independence, extensive libraries, and robust security features. It is widely used in web development due to its ability to run on any device that supports the Java Virtual Machine (JVM). This makes it a preferred choice for creating dynamic and interactive web content.

Option Analysis:

Option A: COBOL is an older programming language primarily used for business and administrative systems, not for web development.
Option B: Java is a versatile language used for developing multimedia web pages, websites, and web-based applications.
Option C: ASSEMBLER is a low-level programming language used for writing system-level software, not for web development.
Option D: This option is not applicable as it does not provide a valid choice.

Mnemonic: Java: Just Another Versatile Architecture

735. Name the football player who was nicknamed as 'The Golden Boy'. [Jammu and Kashmir PSC Examination-1983]

Correct Answer: Correct answer is: (C) Armando Maradona.

Exam Relevance: Jammu and Kashmir PSC, UPSC, Civil Services Exam

Difficulty: Moderate

Concept notes: Armando Maradona was nicknamed 'The Golden Boy' due to his exceptional skills and early success in football.

Common Mistakes: Students may confuse Maradona with other famous footballers like Pele or Lionel Messi, who also have significant historical importance in the sport.

Explanations: Armando Maradona was nicknamed 'The Golden Boy' because of his remarkable talent and early achievements in football. He was known for his exceptional dribbling skills, vision, and ability to score crucial goals. This nickname reflects his status as a prodigious talent from a young age.

Option Analysis:

Option A: Pele is known as 'The King of Football' but not 'The Golden Boy'.
Option B: Lionel Messi is often referred to as 'The GOAT' (Greatest of All Time) but not 'The Golden Boy'.
Option C: Armando Maradona was indeed nicknamed 'The Golden Boy' due to his early success and exceptional talent.
Option D: Cristiano Ronaldo is known as 'CR7' or 'The Phenomenon' but not 'The Golden Boy'.

Mnemonic: Golden Boy, Maradona's early shine.

736. Which of the following shows the masses of the three elementary particles in decreasing order? [SSC CHSL Examination-2012]

Correct Answer: Correct answer is: (A) Baryons, Mesons, Leptons.

Exam Relevance: SSC CHSL, UPSC, GATE, GRE

Difficulty: Easy

Concept notes: Baryons, mesons, and leptons are three types of elementary particles. Baryons are the heaviest, followed by mesons, and leptons are the lightest.

Common Mistakes: Students may confuse the order of masses due to the similar nature of these particles.

Explanations: Baryons, such as protons and neutrons, are the heaviest elementary particles. Mesons, which are composed of a quark and an antiquark, are lighter than baryons but heavier than leptons. Leptons, such as electrons and neutrinos, are the lightest of the three. Therefore, the correct order of masses in decreasing order is Baryons, Mesons, Leptons.

Option Analysis:

Option A: Correct. Baryons are the heaviest, followed by mesons, and then leptons.
Option B: Incorrect. Leptons are the lightest, not the heaviest.
Option C: Incorrect. Mesons are not the heaviest, and leptons are not the second heaviest.
Option D: Incorrect. This option is not a valid order of masses.

Mnemonic: Big Mice Like: Baryons, Mesons, Leptons.

737. The process in which plants make there own food is called [University Grants Commission Examination-2021]

Correct Answer: Correct answer is: (A) Photosynthesis.

Exam Relevance: NEET, JEE, UGC NET

Difficulty: Very Easy

Concept notes: Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce oxygen and energy in the form of sugar.

Common Mistakes: Students may confuse photosynthesis with other biological processes or environmental phenomena.

Explanations: Photosynthesis is the process by which plants convert light energy into chemical energy, which is then used to fuel the plant's activities. This process involves the absorption of light by chlorophyll in the leaves, the splitting of water molecules, and the conversion of carbon dioxide into glucose. The other options are unrelated to the process of plants making their own food.

Option Analysis:

Option A: Correct. Photosynthesis is the process by which plants make their own food.
Option B: Incorrect. Carbon monoxide is a toxic gas and not related to plant food production.
Option C: Incorrect. Global warming is a climate change phenomenon and not related to plant food production.
Option D: Incorrect. This option is not applicable as photosynthesis is the correct answer.

738. Which one of these are not a principle of the United Nations? [Tamil Nadu Postal Circle Examination-1996]

Correct Answer: Correct answer is: (C) To help fight diseases and preserve the environment.

Exam Relevance: Tamil Nadu Postal Circle Examination, UPSC, SSC

Difficulty: Moderate

Concept notes: The principles of the United Nations include equality of member states, adherence to the UN Charter, and maintaining international peace and security. However, specific actions like fighting diseases and preserving the environment are part of the UN's programs and goals, not its foundational principles.

Common Mistakes: Students may confuse the UN's programs and goals with its foundational principles.

Explanations: The United Nations is guided by several foundational principles, including the equality of all member states and the obligation to adhere to the UN Charter. These principles are fundamental to the organization's structure and operations. However, specific actions such as fighting diseases and preserving the environment are part of the UN's broader goals and programs, such as the Sustainable Development Goals. These actions are important but are not considered core principles of the UN.

Option Analysis:

Option A: This is a correct principle of the United Nations, stating that all member countries are equal.
Option B: This is also a correct principle, indicating that all member countries must obey the Charter.
Option C: This is not a principle but rather a goal or program of the United Nations.
Option D: This is incorrect as one of the options (C) is not a principle.

739. The revolt of 1857 started on ..... [Andhra Pradesh PSC Examination-2005]

Correct Answer: Correct answer is: (A) May 10, 1857.

Exam Relevance: UPSC, SSC, State PSC

Difficulty: Easy

Concept notes: The revolt of 1857, also known as the Indian Rebellion of 1857, began on May 10, 1857, when Indian soldiers of the British East India Company's army mutinied against their British officers.

Common Mistakes: Students often confuse the exact date of the revolt's start, as the events leading up to the revolt spanned several months.

Explanations: The revolt of 1857 started on May 10, 1857, when the Indian soldiers, known as sepoys, in the British East India Company's army mutinied against their British officers. This date marks the beginning of the widespread rebellion against British rule in India.

Option Analysis:

Option A: Correct. The revolt began on May 10, 1857.
Option B: Incorrect. The revolt did not start on May 11, 1857.
Option C: Incorrect. The revolt did not start on May 12, 1857.
Option D: Incorrect. The revolt did not start on May 13, 1857.

Mnemonic: May Mutiny, 10th Day

740. From which one of the following did india buy the Brank anti missile defence systems? [(PPS) Service Police Pondicherry Examination-2011]

Correct Answer: Correct answer is: (D) Israel.

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

Difficulty: Moderate

Concept notes: India has procured the Barak missile defense system from Israel.

Common Mistakes: Students may confuse the source of the Barak missile defense system with other countries like the USA or Russia, which are also known for their missile defense systems.

Explanations: India has purchased the Barak missile defense system from Israel. This system is designed to provide multi-layered defense against various aerial threats, including aircraft, cruise missiles, and ballistic missiles. The Barak system has been integrated into India's naval and land-based defense systems, enhancing its overall security capabilities.

Option Analysis:

Option A: The USA is known for advanced missile defense systems, but India did not purchase the Barak system from the USA.
Option B: Russia is a major arms supplier to India, but the Barak missile defense system was not sourced from Russia.
Option C: France is not known for supplying the Barak missile defense system to India.
Option D: Israel is the correct source of the Barak missile defense system for India.

Mnemonic: Barak from Israel, missile shield deal.

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General knowledge MCQ - Set 74

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