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. If a circuit has a total voltage of 24V and a total resistance of 8Ω, what is the total current flowing through the circuit? (2023)

A. 3A
B. 2A
C. 4A
D. 6A

Solution

Using Ohm's law, I = V/R = 24V/8Ω = 3A.

Correct Answer: C — 4A

Q. If a circuit has a total voltage of 24V and a total resistance of 8Ω, what is the total current? (2020)

A. 3A
B. 2A
C. 4A
D. 6A

Solution

Using Ohm's law, I = V/R = 24V/8Ω = 3A.

Correct Answer: C — 4A

Q. If a circuit has a total voltage of 24V and two resistors of 6Ω and 3Ω in series, what is the current flowing through the circuit?

A. 2A
B. 3A
C. 4A
D. 6A

Solution

Total resistance R_total = 6Ω + 3Ω = 9Ω. Current I = V/R = 24V / 9Ω = 2.67A.

Correct Answer: B — 3A

Q. If a circuit has a total voltage of 24V and two resistors of 8Ω and 4Ω in series, what is the current flowing through the circuit?

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

Solution

Total resistance R_total = 8Ω + 4Ω = 12Ω. Using Ohm's law, I = V/R = 24V/12Ω = 2A.

Correct Answer: B — 2A

Q. If a circuit has a total voltage of 30V and a total resistance of 15Ω, what is the total current in the circuit?

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

Solution

Using Ohm's law, I = V/R = 30V/15Ω = 2A.

Correct Answer: C — 3A

Q. If a circuit has a total voltage of 50V and a total resistance of 10Ω, what is the total current flowing through the circuit? (2020)

A. 5A
B. 10A
C. 15A
D. 20A

Solution

Using Ohm's law, I = V/R = 50V/10Ω = 5A.

Correct Answer: A — 5A

Q. If a circuit has a voltage of 12 V and a resistance of 3 ohms, what is the current flowing through the circuit? (2022)

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

Solution

Using Ohm's law (I = V/R), I = 12 V / 3 Ω = 4 A.

Correct Answer: A — 4 A

Q. If a circuit has a voltage of 24 volts and a current of 6 amperes, what is the resistance?

A. 4 Ω
B. 6 Ω
C. 8 Ω
D. 12 Ω

Solution

Using Ohm's Law, R = V / I = 24 V / 6 A = 4 Ω.

Correct Answer: C — 8 Ω

Q. If a circuit has a voltage of 24V and a current of 3A, what is the resistance? (2022)

A. 4Ω
B. 6Ω
C. 8Ω
D. 12Ω

Solution

Using Ohm's Law, R = V / I = 24V / 3A = 8Ω.

Correct Answer: B — 6Ω

Q. If a circuit has a voltage of 24V and a current of 6A, what is the resistance? (2022)

A. 2Ω
B. 4Ω
C. 6Ω
D. 8Ω

Solution

Using Ohm's Law, R = V/I = 24V / 6A = 4Ω.

Correct Answer: D — 8Ω

Q. If a circuit has a voltage of 30V and a total resistance of 10Ω, what is the total current flowing through the circuit?

A. 2A
B. 3A
C. 4A
D. 5A

Solution

Using Ohm's law, I = V/R = 30V/10Ω = 3A.

Correct Answer: C — 4A

Q. If a circuit has two branches with resistances of 4Ω and 8Ω, what is the total current if the voltage across the branches is 12V?

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

Solution

For the 4Ω branch, I1 = V/R1 = 12V / 4Ω = 3A. For the 8Ω branch, I2 = V/R2 = 12V / 8Ω = 1.5A. Total current = I1 + I2 = 3A + 1.5A = 4.5A.

Correct Answer: B — 2A

Q. If a circular loop of radius R carries a current I, what is the magnetic field at the center of the loop?

A. μ₀I/2R
B. μ₀I/4R
C. μ₀I/R
D. μ₀I/8R

Solution

Using Ampere's Law, B = μ₀I/2R at the center of a circular loop.

Correct Answer: A — μ₀I/2R

Q. If a circular loop of radius R carries a current I, what is the magnetic field at the center of the loop according to Ampere's Law?

A. μ₀I/2R
B. μ₀I/4R
C. μ₀I/R
D. μ₀I/πR

Solution

The magnetic field at the center of a circular loop is given by B = (μ₀I)/(2R).

Correct Answer: A — μ₀I/2R

Q. If a circular paper is folded in half, what shape will be visible when it is unfolded? (2020)

A. Circle
B. Ellipse
C. Semi-circle
D. Triangle

Solution

Folding a circular paper in half results in a semi-circle when unfolded.

Correct Answer: C — Semi-circle

Q. If a city allocates $2,500,000 for infrastructure, which is 50% of its total budget, what is the total budget?

A. $4,000,000
B. $4,500,000
C. $5,000,000
D. $5,500,000

Solution

Total budget = $2,500,000 / 0.50 = $5,000,000

Correct Answer: C — $5,000,000

Q. If a city allocates 15% of its budget to public health and the total budget is $2,000,000, how much is allocated to public health?

A. $250,000
B. $300,000
C. $350,000
D. $400,000

Solution

Allocation to public health = 15% of 2,000,000 = 0.15 * 2,000,000 = 300,000.

Correct Answer: B — $300,000

Q. If a city council has 12 members and 4 are from the ruling party, what fraction of the council members are from the ruling party?

A. 1/3
B. 1/4
C. 1/2
D. 1/6

Solution

4 members from the ruling party out of 12 total members is 4/12, which simplifies to 1/3.

Correct Answer: A — 1/3

Q. If a city has a population of 1 million and each person generates 0.5 kg of waste per day, how much waste is generated by the city in a week?

A. 3.5 million kg
B. 2.5 million kg
C. 4 million kg
D. 3 million kg

Solution

Total waste = Population * Waste per person per day * Days in a week = 1,000,000 * 0.5 * 7 = 3,500,000 kg.

Correct Answer: A — 3.5 million kg

Q. If a city has a poverty rate of 12% and the total number of poor people is 24,000, what is the total population of the city?

A. 200,000
B. 250,000
C. 300,000
D. 400,000

Solution

Total population = 24,000 / 0.12 = 200,000.

Correct Answer: B — 250,000

Q. If a city has a total of 1,000 households and 30% of them are single-parent households, how many single-parent households are there?

A. 300
B. 250
C. 200
D. 350

Solution

30% of 1,000 is calculated as (30/100) * 1000 = 300.

Correct Answer: A — 300

Q. If a city plans to reduce its carbon emissions by 25% and the current emissions are 200,000 tons, what will be the new emissions target?

A. 150,000 tons
B. 160,000 tons
C. 170,000 tons
D. 180,000 tons

Solution

New emissions target = 200,000 tons - (25% of 200,000 tons) = 200,000 - 50,000 = 150,000 tons.

Correct Answer: B — 160,000 tons

Q. If a city recycles 25% of its waste and produces 800 tons of waste, how much waste is recycled?

A. 200 tons
B. 150 tons
C. 250 tons
D. 300 tons

Solution

Recycled waste = 25% of 800 tons = 0.25 * 800 = 200 tons

Correct Answer: A — 200 tons

Q. If a city reduces its carbon emissions by 15% annually, how much will it reduce if its current emissions are 800 tons?

A. 100 tons
B. 120 tons
C. 150 tons
D. 200 tons

Solution

15% of 800 tons = 0.15 * 800 = 120 tons.

Correct Answer: B — 120 tons

Q. If a civil servant earns a monthly salary of $3000, what will be their annual salary?

A. $30,000
B. $36,000
C. $24,000
D. $40,000

Solution

Annual salary = Monthly salary x 12 = $3000 x 12 = $36,000.

Correct Answer: B — $36,000

Q. If a civil servant is expected to work 40 hours a week and spends 10% of that time on unethical practices, how many hours does he spend on unethical practices weekly?

A. 2 hours
B. 4 hours
C. 6 hours
D. 8 hours

Solution

10% of 40 hours is 4 hours.

Correct Answer: A — 2 hours

Q. If a civil servant spends 25% of their salary on housing, how much do they spend if their salary is $4000?

A. $800
B. $1000
C. $1200
D. $600

Solution

Housing expense = Salary x 25% = $4000 x 0.25 = $1000.

Correct Answer: B — $1000

Q. If a civil servant's performance rating improves by 15% each year, what will be their rating after 2 years if it starts at 80?

A. 92
B. 100
C. 85
D. 90

Solution

Rating after 1 year = 80 + (80 x 0.15) = 80 + 12 = 92. Rating after 2 years = 92 + (92 x 0.15) = 92 + 13.8 = 105.8 (round to 100).

Correct Answer: D — 90

Q. If a civil servant's travel allowance is $150 per day and they travel for 10 days, how much will they receive in total?

A. $1500
B. $1200
C. $1000
D. $1800

Solution

Total travel allowance = Daily allowance x Number of days = $150 x 10 = $1500.

Correct Answer: A — $1500

Q. If a civil servant's work efficiency increases by 20% and they complete a task in 80 hours, how many hours will it take to complete the same task with the increased efficiency?

A. 64
B. 72
C. 60
D. 70

Solution

New time = Original time / (1 + Efficiency increase) = 80 / 1.20 = 66.67 hours (round to 64).

Correct Answer: A — 64

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