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UPSC MCQ & Objective Questions

The Union Public Service Commission (UPSC) is a crucial examination for students aspiring to enter prestigious civil services in India. Preparing for UPSC requires a strong grasp of various subjects, and practicing MCQs is an effective way to enhance your exam readiness. By focusing on objective questions, students can identify important topics and improve their chances of scoring better in the exams.

What You Will Practise Here

Indian Polity and Governance
Geography of India and the World
History of India and Indian National Movement
Economic Development and Planning
Environment and Ecology
General Science and Technology
Current Affairs and General Knowledge

Exam Relevance

The topics covered in UPSC are not only essential for the UPSC exams but also frequently appear in various other competitive exams such as CBSE, State Boards, NEET, and JEE. Students can expect a mix of direct questions and application-based scenarios in the MCQs. Common question patterns include multiple-choice questions that test conceptual understanding and analytical skills, making it vital for students to practice regularly.

Common Mistakes Students Make

Overlooking current affairs, which are crucial for UPSC and other competitive exams.
Misinterpreting questions due to lack of clarity in understanding key terms.
Neglecting to revise fundamental concepts, leading to confusion in application-based questions.
Relying solely on rote memorization instead of understanding concepts deeply.

FAQs

Question: What are UPSC MCQ questions?
Answer: UPSC MCQ questions are multiple-choice questions designed to test a candidate's knowledge and understanding of various subjects relevant to civil services.

Question: How can I find UPSC objective questions with answers?
Answer: You can find UPSC objective questions with answers on educational platforms like SoulShift, which provide curated practice questions for effective exam preparation.

Start your journey towards success by solving UPSC practice MCQs today! Testing your understanding through these objective questions will not only boost your confidence but also enhance your exam performance. Get started now and pave your way to achieving your goals!

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Q. A renewable energy project costs $2 million and is expected to save $300,000 annually. What is the payback period in years?

A. 5 years
B. 6.67 years
C. 7 years
D. 8 years

Solution

Payback period = Total cost / Annual savings = 2,000,000 / 300,000 = 6.67 years.

Correct Answer: B — 6.67 years

Q. A renewable energy project costs $500,000 and is expected to save $100,000 annually in energy costs. How many years will it take to break even?

A. 3 years
B. 4 years
C. 5 years
D. 6 years

Solution

$500,000 / $100,000 = 5 years

Correct Answer: C — 5 years

Q. A renewable energy project costs $500,000 and is expected to save $50,000 annually in energy costs. How many years will it take to break even?

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

Solution

$500,000 / $50,000 = 10 years

Correct Answer: B — 10 years

Q. A report indicates that 30% of government contracts are awarded through corrupt means. If there are 500 contracts, how many are likely awarded corruptly?

A. 100
B. 120
C. 150
D. 180

Solution

30% of 500 is 150.

Correct Answer: C — 150

Q. A report indicates that 70% of employees feel that ethical practices improve workplace morale. If there are 300 employees, how many feel this way?

A. 180
B. 200
C. 210
D. 220

Solution

70% of 300 is calculated as (70/100) * 300 = 210.

Correct Answer: C — 210

Q. A report states that 25% of the employees in a firm are part-time workers. If there are 160 employees, how many are part-time?

A. 30
B. 40
C. 50
D. 60

Solution

25% of 160 is calculated as (25/100) * 160 = 40.

Correct Answer: B — 40

Q. A report states that 40% of children in a city live in poverty. If there are 2,500 children in the city, how many live in poverty?

A. 800
B. 900
C. 1,000
D. 1,100

Solution

40% of 2,500 is 0.40 * 2500 = 1,000.

Correct Answer: C — 1,000

Q. A report states that 5% of a population of 10,000 is disabled. How many disabled individuals are there?

A. 400
B. 500
C. 600
D. 700

Solution

Disabled individuals = 5% of 10,000 = 0.05 * 10000 = 500.

Correct Answer: B — 500

Q. A report states that 5% of the population is unemployed. If the total population is 1,000,000, how many people are employed?

A. 950,000
B. 900,000
C. 850,000
D. 800,000

Solution

Unemployed = 5% of 1,000,000 = 50,000. Employed = 1,000,000 - 50,000 = 950,000.

Correct Answer: A — 950,000

Q. A research team found that 50% of a certain habitat's species are insects. If there are 400 species total, how many are insects?

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

Solution

50% of 400 is 0.50 * 400 = 200.

Correct Answer: B — 200

Q. A researcher finds that their study results can be manipulated to favor a certain outcome. They can either publish the results as they are or alter them for a more favorable outcome. What is the ethical choice?

A. Publish altered results
B. Publish true results
C. Withhold publication
D. Seek external funding

Solution

The ethical choice is to publish true results to maintain integrity in research.

Correct Answer: B — Publish true results

Q. A researcher needs to dilute a 10M solution to a 1M solution. If they take 100 mL of the 10M solution, how much water should they add?

A. 900 mL
B. 1000 mL
C. 1100 mL
D. 1200 mL

Solution

Using the dilution formula C1V1 = C2V2, 10M * 100mL = 1M * V2. V2 = 1000 mL. Water to add = 1000 mL - 100 mL = 900 mL.

Correct Answer: A — 900 mL

Q. A response team has 80% of their supplies ready. If they have 1,000 units of supplies, how many units are not ready?

A. 100
B. 200
C. 300
D. 400

Solution

Units not ready = 20% of 1,000 = 0.20 * 1,000 = 200 units.

Correct Answer: B — 200

Q. A river's flow rate is measured at 500 cubic meters per second. How much water flows through the river in one hour?

A. 1,800,000 m³
B. 1,500,000 m³
C. 1,200,000 m³
D. 1,000,000 m³

Solution

Water flow in one hour = 500 m³/s * 3600 s = 1,800,000 m³.

Correct Answer: A — 1,800,000 m³

Q. A rural development program costs $500,000 and is expected to benefit 10,000 families. What is the cost per family?

A. $40
B. $50
C. $60
D. $70

Solution

The cost per family is $500,000 / 10,000 = $50.

Correct Answer: B — $50

Q. A salary of $3000 is adjusted for inflation of 6%. What will be the new salary?

A. $3180
B. $3200
C. $3150
D. $3100

Solution

New salary = 3000 + (6/100 * 3000) = 3000 + 180 = $3180

Correct Answer: A — $3180

Q. A satellite completes one orbit around the Earth in 90 minutes. How many orbits does it complete in 24 hours?

A. 16
B. 24
C. 32
D. 48

Solution

Total minutes in 24 hours = 24 × 60 = 1,440 minutes. Orbits = 1,440 minutes / 90 minutes/orbit = 16 orbits.

Correct Answer: C — 32

Q. A satellite orbits the Earth at a height of 500 km. If the radius of the Earth is approximately 6,371 km, what is the total distance from the center of the Earth to the satellite?

A. 6,871 km
B. 6,371 km
C. 7,000 km
D. 6,500 km

Solution

Total distance = Radius of Earth + Height of satellite = 6,371 km + 500 km = 6,871 km.

Correct Answer: A — 6,871 km

Q. A school has 1200 students. If 60% of them are boys, how many girls are there in the school?

A. 480
B. 720
C. 600
D. 540

Solution

Number of girls = 1200 - (60% of 1200) = 1200 - 720 = 480

Correct Answer: B — 720

Q. A school has 240 students. If 25% of them are girls, how many boys are there?

A. 180
B. 60
C. 120
D. 90

Solution

25% of 240 is 60 girls. So, 240 - 60 = 180 boys.

Correct Answer: A — 180

Q. A school has 80% of its students passing an exam. If there are 250 students, how many passed the exam?

A. 180
B. 200
C. 210
D. 220

Solution

80% of 250 is calculated as (80/100) * 250 = 200.

Correct Answer: B — 200

Q. A sculpture is made of 80% clay and 20% glaze. If the total weight of the sculpture is 10 kg, how much does the glaze weigh?

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

Solution

Weight of glaze = 20% of total weight = 20/100 * 10 = 2 kg.

Correct Answer: A — 2 kg

Q. A security agency has a budget of $1,200,000. If they spend 40% on personnel, how much is left for other expenses?

A. $600,000
B. $720,000
C. $800,000
D. $900,000

Solution

Amount spent on personnel = 40% of $1,200,000 = $480,000. Amount left = $1,200,000 - $480,000 = $720,000.

Correct Answer: B — $720,000

Q. A security protocol reduces the risk of breaches by 25%. If the initial risk is 80%, what is the new risk level?

A. 55%
B. 60%
C. 65%
D. 70%

Solution

New risk = 80% - (25% of 80%) = 80% - 20% = 60%.

Correct Answer: A — 55%

Q. A security system can process 150 alerts per hour. How many alerts can it process in 8 hours?

A. 1000
B. 1200
C. 1300
D. 1500

Solution

150 alerts/hour * 8 hours = 1200 alerts.

Correct Answer: B — 1200

Q. A security system has a failure rate of 2%. If there are 500 systems installed, how many are expected to fail?

A. 8
B. 10
C. 12
D. 14

Solution

Expected failures = 2% of 500 = 0.02 * 500 = 10 systems.

Correct Answer: B — 10

Q. A security update reduces the vulnerability of a system by 75%. If the initial vulnerability score was 80, what is the new score?

A. 20
B. 40
C. 60
D. 80

Solution

80 - (80 * 0.75) = 20.

Correct Answer: A — 20

Q. A shopkeeper sells an item for $120, making a profit of 20%. What was the cost price?

A. $80
B. $90
C. $100
D. $110

Solution

Let cost price be x. Then, 120 = x + 0.2x => 120 = 1.2x => x = 100.

Correct Answer: A — $80

Q. A shopkeeper sells an item for $80 after giving a discount of 20%. What was the original price?

A. $90
B. $100
C. $110
D. $120

Solution

Let the original price be x. After 20% discount, selling price = x - 0.2x = 0.8x. 0.8x = 80, x = 100.

Correct Answer: B — $100

Q. A software developer finds a security flaw in their company's product. They can either fix it quietly or disclose it publicly. What is the ethical choice?

A. Fix it quietly
B. Disclose it publicly
C. Ignore it
D. Inform management only

Solution

The ethical choice is to fix it quietly to protect users while informing management.

Correct Answer: A — Fix it quietly

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