Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. What is the primary function of a cathode in an electrochemical cell?
A.
To oxidize species
B.
To reduce species
C.
To provide electrons
D.
To balance charge
Show solution
Solution
The cathode is where reduction occurs, gaining electrons in the process.
Correct Answer:
B
— To reduce species
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Q. What is the primary function of a central bank?
A.
To regulate the stock market
B.
To issue currency and manage monetary policy
C.
To provide loans to individuals
D.
To manage government budgets
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Solution
The primary function of a central bank is to issue currency and manage monetary policy to ensure economic stability.
Correct Answer:
B
— To issue currency and manage monetary policy
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Q. What is the primary function of a CPU in a computer system? (2021)
A.
To store data
B.
To process instructions
C.
To display graphics
D.
To connect peripherals
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Solution
The CPU (Central Processing Unit) is responsible for processing instructions and executing commands in a computer system.
Correct Answer:
B
— To process instructions
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Q. What is the primary function of a diode in a circuit?
A.
Amplification
B.
Rectification
C.
Capacitance
D.
Inductance
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Solution
The primary function of a diode is rectification, allowing current to flow in one direction only.
Correct Answer:
B
— Rectification
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Q. What is the primary function of a diode? (2022)
A.
To amplify current
B.
To rectify current
C.
To store charge
D.
To generate voltage
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Solution
A diode primarily functions to rectify current, allowing it to flow in one direction only.
Correct Answer:
B
— To rectify current
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Q. What is the primary function of a modulator in a communication system?
A.
To amplify the signal
B.
To convert the signal into a suitable form for transmission
C.
To demodulate the received signal
D.
To filter out noise
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Solution
A modulator converts the baseband signal into a form suitable for transmission over a communication channel.
Correct Answer:
B
— To convert the signal into a suitable form for transmission
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Q. What is the primary function of a salt bridge in a galvanic cell?
A.
To provide a path for electrons
B.
To maintain charge balance
C.
To increase voltage
D.
To decrease resistance
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Solution
The primary function of a salt bridge is to maintain charge balance by allowing ions to flow between the half-cells.
Correct Answer:
B
— To maintain charge balance
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Q. What is the primary function of a transformer? (2021)
A.
To convert AC to DC
B.
To increase or decrease voltage
C.
To store electrical energy
D.
To measure current
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Solution
A transformer is used to increase or decrease the voltage in an AC circuit while keeping the power constant.
Correct Answer:
B
— To increase or decrease voltage
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Q. What is the primary function of a transistor in semiconductor technology?
A.
Switching
B.
Storage
C.
Transmission
D.
Resistance
Show solution
Solution
The primary function of a transistor is switching, allowing it to control electrical signals.
Correct Answer:
A
— Switching
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Q. What is the primary function of a transistor?
A.
Rectification
B.
Amplification
C.
Capacitance
D.
Inductance
Show solution
Solution
The primary function of a transistor is amplification of electrical signals.
Correct Answer:
B
— Amplification
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Q. What is the primary function of a transponder in satellite communication?
A.
To amplify the signal
B.
To receive and retransmit signals
C.
To modulate the signal
D.
To filter out noise
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Solution
A transponder in satellite communication receives signals from the ground, processes them, and retransmits them back to Earth.
Correct Answer:
B
— To receive and retransmit signals
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Q. What is the primary function of an antenna in a communication system?
A.
To amplify the signal
B.
To convert electrical signals into electromagnetic waves
C.
To modulate the signal
D.
To demodulate the signal
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Solution
An antenna converts electrical signals into electromagnetic waves for transmission and vice versa for reception.
Correct Answer:
B
— To convert electrical signals into electromagnetic waves
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Q. What is the primary function of antacids?
A.
To relieve pain
B.
To reduce acidity
C.
To increase appetite
D.
To promote digestion
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Solution
Antacids are used to neutralize stomach acidity and relieve heartburn.
Correct Answer:
B
— To reduce acidity
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Q. What is the primary function of antibiotics? (2020)
A.
Pain relief
B.
Bacterial infection treatment
C.
Viral infection treatment
D.
Fungal infection treatment
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Solution
Antibiotics are primarily used to treat bacterial infections by inhibiting the growth of bacteria.
Correct Answer:
B
— Bacterial infection treatment
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Q. What is the primary function of antioxidants in food? (2022)
A.
Enhance flavor
B.
Preserve color
C.
Prevent oxidation
D.
Increase sweetness
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Solution
Antioxidants prevent oxidation, which can lead to spoilage and degradation of food quality.
Correct Answer:
C
— Prevent oxidation
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Q. What is the primary function of antioxidants in the body? (2020)
A.
Increase energy
B.
Prevent oxidation
C.
Enhance digestion
D.
Boost immunity
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Solution
Antioxidants prevent oxidation by neutralizing free radicals, thus protecting cells from damage.
Correct Answer:
B
— Prevent oxidation
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Q. What is the primary function of antioxidants in the human body? (2020)
A.
Increase energy
B.
Prevent oxidation
C.
Enhance digestion
D.
Boost immunity
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Solution
Antioxidants prevent oxidation, which can lead to cellular damage and contribute to various diseases.
Correct Answer:
B
— Prevent oxidation
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Q. What is the primary function of auxins in plant growth? (2020)
A.
Promote flowering
B.
Stimulate root growth
C.
Inhibit leaf abscission
D.
Promote cell division
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Solution
Auxins primarily stimulate root growth and are involved in various growth processes.
Correct Answer:
B
— Stimulate root growth
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Q. What is the primary function of baking soda in cooking?
A.
Thickening agent
B.
Leavening agent
C.
Flavor enhancer
D.
Preservative
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Solution
Baking soda acts as a leavening agent, helping baked goods rise by producing carbon dioxide when reacting with acids.
Correct Answer:
B
— Leavening agent
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Q. What is the primary function of blood as a connective tissue? (2023)
A.
Support
B.
Transport
C.
Protection
D.
Storage
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Solution
The primary function of blood as a connective tissue is transport.
Correct Answer:
B
— Transport
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Q. What is the primary function of carbohydrates in living organisms?
A.
Energy storage
B.
Genetic information
C.
Catalysis
D.
Structural support
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Solution
Carbohydrates primarily serve as a source of energy in living organisms.
Correct Answer:
A
— Energy storage
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Q. What is the primary function of carbohydrates in the body?
A.
Building tissues
B.
Providing energy
C.
Regulating hormones
D.
Transporting nutrients
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Solution
The primary function of carbohydrates in the body is to provide energy, especially for the brain and muscles.
Correct Answer:
B
— Providing energy
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Q. What is the primary function of cholesterol in the body? (2023)
A.
Energy storage
B.
Hormone production
C.
Protein synthesis
D.
Carbohydrate metabolism
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Solution
Cholesterol is essential for the production of hormones, including steroid hormones and vitamin D.
Correct Answer:
B
— Hormone production
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Q. What is the primary function of ciliated epithelial cells? (2023)
A.
Absorption
B.
Secretion
C.
Movement of substances
D.
Protection
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Solution
Ciliated epithelial cells are specialized for the movement of substances across their surface, such as mucus in the respiratory tract.
Correct Answer:
C
— Movement of substances
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Q. What is the primary function of cytokinins in plant growth? (2020)
A.
Promote root growth
B.
Stimulate cell division
C.
Inhibit aging
D.
Enhance fruit ripening
Show solution
Solution
Cytokinins primarily stimulate cell division and are involved in various growth processes.
Correct Answer:
B
— Stimulate cell division
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Q. What is the primary function of decomposers in an ecosystem? (2022)
A.
Produce energy
B.
Consume primary producers
C.
Break down dead organic matter
D.
Compete with herbivores
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Solution
Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.
Correct Answer:
C
— Break down dead organic matter
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Q. What is the primary function of dietary fats?
A.
Energy storage
B.
Building muscle
C.
Regulating metabolism
D.
Enhancing immunity
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Solution
The primary function of dietary fats is energy storage, providing 9 calories per gram.
Correct Answer:
A
— Energy storage
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Q. What is the primary function of emulsifiers in food products?
A.
Thickeners
B.
Stabilizers
C.
Flavor enhancers
D.
Coloring agents
Show solution
Solution
Emulsifiers help stabilize mixtures of oil and water, preventing separation.
Correct Answer:
B
— Stabilizers
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Q. What is the primary function of enzymes in biological systems?
A.
Store energy
B.
Speed up chemical reactions
C.
Provide structural support
D.
Transport molecules
Show solution
Solution
Enzymes act as catalysts to speed up chemical reactions in biological systems.
Correct Answer:
B
— Speed up chemical reactions
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Q. What is the primary function of enzymes?
A.
Store energy
B.
Speed up chemical reactions
C.
Provide structure
D.
Transport substances
Show solution
Solution
Enzymes are biological catalysts that speed up chemical reactions in the body.
Correct Answer:
B
— Speed up chemical reactions
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