Major Competitive Exams

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Major Competitive Exams

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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!

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Q. What is the moment of inertia of a thin circular plate of mass M and radius R about an axis through its center and perpendicular to its plane?

A. 1/2 MR^2
B. MR^2
C. 1/4 MR^2
D. 1/3 MR^2

Solution

The moment of inertia of a thin circular plate about an axis through its center is I = 1/2 MR^2.

Correct Answer: A — 1/2 MR^2

Q. What is the moment of inertia of a thin circular ring of mass M and radius R about an axis perpendicular to its plane and passing through its center?

A. MR^2
B. 1/2 MR^2
C. 1/3 MR^2
D. 2/5 MR^2

Solution

The moment of inertia of a thin circular ring about an axis through its center is I = MR^2.

Correct Answer: A — MR^2

Q. What is the moment of inertia of a thin circular ring of mass M and radius R about an axis perpendicular to its plane through its center?

A. MR^2
B. 1/2 MR^2
C. 1/3 MR^2
D. 2/5 MR^2

Solution

The moment of inertia of a thin circular ring about an axis through its center is I = MR^2.

Correct Answer: A — MR^2

Q. What is the moment of inertia of a thin circular ring of mass M and radius R about an axis through its center?

A. MR^2
B. 1/2 MR^2
C. 1/3 MR^2
D. 2/5 MR^2

Solution

The moment of inertia of a thin circular ring about an axis through its center is I = MR^2.

Correct Answer: A — MR^2

Q. What is the moment of inertia of a thin circular ring of mass M and radius R about an axis through its center and perpendicular to its plane?

A. MR^2
B. 1/2 MR^2
C. 2/3 MR^2
D. 1/3 MR^2

Solution

The moment of inertia of a thin circular ring about an axis through its center is I = MR^2.

Correct Answer: A — MR^2

Q. What is the moment of inertia of a thin rod of length L about an axis perpendicular to it and passing through one end?

A. (1/3)ML^2
B. (1/12)ML^2
C. ML^2
D. (1/2)ML^2

Solution

The moment of inertia of a thin rod about an end is given by I = (1/3)ML^2.

Correct Answer: A — (1/3)ML^2

Q. What is the moment of inertia of a thin rod of length L about an axis perpendicular to it and passing through its center?

A. (1/3)ML^2
B. (1/12)ML^2
C. (1/2)ML^2
D. ML^2

Solution

The moment of inertia of a thin rod about an axis through its center is given by I = (1/12)ML^2.

Correct Answer: B — (1/12)ML^2

Q. What is the moment of inertia of a thin spherical shell of mass M and radius R about an axis through its center?

A. 2/3 MR^2
B. 1/2 MR^2
C. MR^2
D. 2 MR^2

Solution

The moment of inertia of a thin spherical shell about an axis through its center is I = 2/3 MR^2.

Correct Answer: A — 2/3 MR^2

Q. What is the moment of inertia of a thin wire bent in the shape of a semicircle of radius R and mass M about the diameter?

A. 1/2 MR^2
B. 1/4 MR^2
C. MR^2
D. 3/8 MR^2

Solution

The moment of inertia of a thin wire bent in the shape of a semicircle about the diameter is I = 3/8 MR^2.

Correct Answer: D — 3/8 MR^2

Q. What is the moment of inertia of a uniform rectangular plate of mass M and dimensions a x b about an axis through its center and parallel to side a?

A. 1/12 Ma^2
B. 1/12 Mb^2
C. 1/3 Ma^2
D. 1/3 Mb^2

Solution

The moment of inertia of a rectangular plate about an axis through its center and parallel to side a is I = 1/3 Mb^2.

Correct Answer: D — 1/3 Mb^2

Q. What is the moment of inertia of a uniform thin circular plate of mass M and radius R about an axis through its center and perpendicular to its plane?

A. 1/2 MR^2
B. MR^2
C. 1/4 MR^2
D. 2/5 MR^2

Solution

The moment of inertia of a uniform thin circular plate about an axis through its center and perpendicular to its plane is I = 1/2 MR^2.

Correct Answer: A — 1/2 MR^2

Q. What is the moment of inertia of a uniform thin square plate of mass M and side length a about an axis through its center and parallel to one of its sides?

A. 1/6 Ma²
B. 1/12 Ma²
C. 1/4 Ma²
D. 1/3 Ma²

Solution

The moment of inertia of a square plate about an axis through its center and parallel to one side is I = 1/12 Ma².

Correct Answer: B — 1/12 Ma²

Q. What is the moment of inertia of a uniform triangular lamina of mass M and base b about an axis perpendicular to the base and passing through its centroid?

A. 1/18 Mb^2
B. 1/12 Mb^2
C. 1/6 Mb^2
D. 1/24 Mb^2

Solution

The moment of inertia of a triangular lamina about an axis through its centroid is I = 1/12 Mb^2.

Correct Answer: B — 1/12 Mb^2

Q. What is the momentum of a 3 kg object moving at a velocity of 4 m/s? (2017)

A. 12 kg·m/s
B. 7 kg·m/s
C. 15 kg·m/s
D. 10 kg·m/s

Solution

Momentum (p) = mass × velocity = 3 kg × 4 m/s = 12 kg·m/s.

Correct Answer: A — 12 kg·m/s

Q. What is the monomer of nucleic acids? (2023)

A. Amino acid
B. Nucleotide
C. Monosaccharide
D. Fatty acid

Solution

Nucleotides are the monomers that make up nucleic acids.

Correct Answer: B — Nucleotide

Q. What is the monomer of polyethylene?

A. Ethylene
B. Propylene
C. Butylene
D. Styrene

Solution

Polyethylene is made from the polymerization of ethylene monomers.

Correct Answer: A — Ethylene

Q. What is the monomer of polystyrene?

A. Ethylene
B. Styrene
C. Propylene
D. Vinyl chloride

Solution

The monomer of polystyrene is styrene, which polymerizes to form polystyrene.

Correct Answer: B — Styrene

Q. What is the most abundant element in the universe?

A. Oxygen
B. Hydrogen
C. Carbon
D. Helium

Solution

Hydrogen is the most abundant element in the universe.

Correct Answer: B — Hydrogen

Q. What is the most appropriate synonym for the word 'ubiquitous' as used in the passage?

A. Rare
B. Widespread
C. Obscure
D. Temporary

Solution

'Ubiquitous' means present everywhere or widespread, making 'widespread' the correct synonym.

Correct Answer: B — Widespread

Q. What is the most logical order of the following sentences to form a coherent paragraph? 1. This can lead to a lack of trust. 2. Transparency is crucial in any organization. 3. Employees may feel undervalued. 4. Without it, communication breaks down.

A. 2, 4, 1, 3
B. 1, 2, 3, 4
C. 4, 2, 3, 1
D. 3, 1, 4, 2

Solution

The logical order is 2, 4, 1, 3, as it starts with the importance of transparency, followed by the consequences of its absence.

Correct Answer: A — 2, 4, 1, 3

Q. What is the multiplicative inverse of 3 modulo 11?

A. 4
B. 7
C. 8
D. 10

Solution

The multiplicative inverse of 3 mod 11 is 4, since 3 * 4 = 12 ≡ 1 (mod 11).

Correct Answer: A — 4

Q. What is the multiplicative inverse of 3 modulo 7?

A. 2
B. 3
C. 5
D. 6

Solution

The multiplicative inverse of 3 mod 7 is 5 because (3 * 5) mod 7 = 15 mod 7 = 1.

Correct Answer: A — 2

Q. What is the name of the climate agreement adopted in 2015? (2015)

A. Kyoto Protocol
B. Paris Agreement
C. Copenhagen Accord
D. Montreal Protocol

Solution

The Paris Agreement was adopted in 2015 to address climate change and its impacts.

Correct Answer: B — Paris Agreement

Q. What is the name of the climate agreement that was adopted in 2015 and aimed at limiting global warming?

A. Kyoto Protocol
B. Paris Agreement
C. Montreal Protocol
D. Copenhagen Accord

Solution

The Paris Agreement was adopted in 2015 with the aim of limiting global warming to below 2 degrees Celsius.

Correct Answer: B — Paris Agreement

Q. What is the name of the Indian government initiative launched in 2021 to promote digital payments in rural areas?

A. Digital India
B. Digi Dhan Abhiyan
C. Pradhan Mantri Jan Dhan Yojana
D. Rural Digital Payment Initiative

Solution

The Rural Digital Payment Initiative was launched to promote digital payments in rural areas.

Correct Answer: D — Rural Digital Payment Initiative

Q. What is the name of the Indian government initiative launched in 2021 to provide financial assistance to small and medium enterprises affected by the pandemic?

A. Startup India
B. Atmanirbhar Bharat
C. PM Employment Generation Programme
D. MSME Relief Fund

Solution

The MSME Relief Fund was launched to provide financial assistance to small and medium enterprises affected by the pandemic.

Correct Answer: D — MSME Relief Fund

Q. What is the name of the Indian government scheme launched in 2021 to promote digital payments in rural areas?

A. Digital India
B. Digi Dhan Abhiyan
C. PMGDISHA
D. Digital Payment Initiative

Solution

The Digi Dhan Abhiyan was launched to promote digital payments in rural areas.

Correct Answer: B — Digi Dhan Abhiyan

Q. What is the name of the Indian government scheme launched in 2021 to provide financial assistance to farmers during the COVID-19 pandemic?

A. Pradhan Mantri Kisan Samman Nidhi
B. PM Garib Kalyan Yojana
C. Kisan Credit Card Scheme
D. Soil Health Card Scheme

Solution

The PM Garib Kalyan Yojana was launched to provide financial assistance to farmers and vulnerable sections during the pandemic.

Correct Answer: B — PM Garib Kalyan Yojana

Q. What is the name of the Indian government scheme launched in 2021 to provide free COVID-19 vaccinations to all citizens?

A. Ayushman Bharat
B. Pradhan Mantri Garib Kalyan Yojana
C. PM Vaccination Scheme
D. COVID-19 Vaccination for All

Solution

The PM Vaccination Scheme was launched to provide free COVID-19 vaccinations to all citizens.

Correct Answer: C — PM Vaccination Scheme

Q. What is the name of the Indian government scheme launched in 2022 to provide financial support to small farmers?

A. Kisan Samman Nidhi
B. Pradhan Mantri Fasal Bima Yojana
C. Soil Health Card Scheme
D. PM Kisan Scheme

Solution

The PM Kisan Scheme was launched to provide financial support to small farmers.

Correct Answer: D — PM Kisan Scheme

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