Defence Exams MCQ & Objective Questions
Defence Exams play a crucial role in shaping the future of aspiring candidates in India. These exams not only assess knowledge but also test the ability to apply concepts in real-world scenarios. Practicing MCQs and objective questions is essential for effective exam preparation, as it helps students identify important questions and enhances their understanding of key topics.
What You Will Practise Here
Fundamentals of Defence Studies
Key Historical Events and Their Impact
Important Defence Policies and Strategies
Current Affairs Related to National Security
Basic Concepts of Military Operations
Understanding Defence Technologies
Analysing Defence Budget and Expenditure
Exam Relevance
The topics covered in Defence Exams are highly relevant across various educational boards, including CBSE and State Boards, as well as competitive exams like NEET and JEE. Students can expect questions that focus on historical events, current affairs, and fundamental concepts related to defence. Common question patterns include multiple-choice questions that assess both theoretical knowledge and practical application.
Common Mistakes Students Make
Overlooking current affairs, which are often integrated into exam questions.
Confusing similar historical events or dates, leading to incorrect answers.
Neglecting the importance of definitions and key terms in objective questions.
Relying solely on rote memorization instead of understanding concepts.
FAQs
Question: What types of questions can I expect in Defence Exams?Answer: You can expect a mix of MCQs covering historical events, current affairs, and fundamental concepts related to defence.
Question: How can I improve my performance in Defence Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Start your journey towards success by solving practice MCQs today! Testing your understanding will not only boost your confidence but also prepare you for the important Defence Exams ahead.
Q. A man is standing at a distance of 50 meters from a tree. If the angle of elevation of the top of the tree from his position is 30 degrees, what is the height of the tree? (2021)
A.
25 m
B.
15 m
C.
10 m
D.
20 m
Show solution
Solution
Height = Distance * tan(angle) = 50 * tan(30) = 50 * (1/√3) = 50/√3 ≈ 28.87 m, which rounds to 25 m.
Correct Answer:
A
— 25 m
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Q. A man is standing on a hill 100 meters high. If he looks down at an angle of 45 degrees, how far is he from the base of the hill? (2020)
A.
100 meters
B.
50 meters
C.
70 meters
D.
30 meters
Show solution
Solution
Distance = height / tan(angle) = 100 / 1 = 100 meters.
Correct Answer:
A
— 100 meters
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Q. A man spends 40% of his income on necessities and 25% on savings. If he has $200 left, what is his total income? (2020)
A.
$500
B.
$600
C.
$400
D.
$300
Show solution
Solution
Let total income = x. Then, 0.35x = 200. Therefore, x = 200 / 0.35 = $600.
Correct Answer:
B
— $600
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Q. A man standing on the ground observes the top of a hill at an angle of elevation of 30 degrees. If he is 100 m away from the base of the hill, what is the height of the hill? (2022)
A.
25 m
B.
30 m
C.
35 m
D.
40 m
Show solution
Solution
Height = distance * tan(angle) = 100 * tan(30) = 100 * (1/√3) ≈ 25 m.
Correct Answer:
A
— 25 m
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Q. A marathon is 42 kilometers long. If a runner completes it in 3 hours, what is his average speed in km/h? (2023)
A.
12 km/h
B.
14 km/h
C.
15 km/h
D.
13 km/h
Show solution
Solution
Average speed = Total distance / Total time = 42 km / 3 hours = 14 km/h.
Correct Answer:
A
— 12 km/h
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Q. A marathon is 42 kilometers long. If a runner completes it in 3 hours, what is his average speed in kilometers per hour? (2021)
A.
12 km/h
B.
14 km/h
C.
15 km/h
D.
16 km/h
Show solution
Solution
Average speed = Total distance / Total time = 42 km / 3 hours = 14 km/h.
Correct Answer:
C
— 15 km/h
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Q. A marathon is 42 kilometers long. If a runner completes it in 3 hours, what is their average speed in kilometers per hour? (2021)
A.
12 km/h
B.
14 km/h
C.
10 km/h
D.
15 km/h
Show solution
Solution
Average speed = total distance / total time = 42 km / 3 h = 14 km/h.
Correct Answer:
B
— 14 km/h
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Q. A marathon is 42 km long. If a runner completes it in 3 hours, what is his average speed in km/h? (2019)
A.
14 km/h
B.
12 km/h
C.
10 km/h
D.
15 km/h
Show solution
Solution
Average speed = Total distance / Total time = 42 km / 3 hours = 14 km/h.
Correct Answer:
B
— 12 km/h
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Q. A marathon is 42.195 kilometers long. If a runner completes it in 3 hours, what is his average speed in km/h? (2021)
A.
12 km/h
B.
14 km/h
C.
13 km/h
D.
15 km/h
Show solution
Solution
Average speed = Total distance / Total time = 42.195 km / 3 h = 14.065 km/h, which rounds to 14 km/h.
Correct Answer:
C
— 13 km/h
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Q. A marathon is 42.195 kilometers long. If a runner completes it in 3 hours, what is their average speed in km/h? (2021)
A.
14.06
B.
13.5
C.
15
D.
12
Show solution
Solution
Average speed = total distance / total time = 42.195 km / 3 h = 14.06 km/h.
Correct Answer:
A
— 14.06
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Q. A marathon runner completes a race in 2 hours and 30 minutes. What is his average speed in km/h if the marathon distance is 42 km? (2022)
A.
16.8
B.
17.0
C.
17.5
D.
18.0
Show solution
Solution
Total time in hours = 2 + 30/60 = 2.5 hours. Average speed = distance/time = 42 km / 2.5 h = 16.8 km/h.
Correct Answer:
B
— 17.0
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Q. A marathon runner completes a race in 3 hours and 15 minutes. What is his average speed in km/h if the marathon distance is 42 km? (2022)
A.
12.5 km/h
B.
13 km/h
C.
14 km/h
D.
15 km/h
Show solution
Solution
Total time in hours = 3 + 15/60 = 3.25 hours. Average speed = Distance/Time = 42 km / 3.25 h = 12.92 km/h, which rounds to 13 km/h.
Correct Answer:
B
— 13 km/h
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Q. A meal contains 15 grams of fat, 30 grams of carbohydrates, and 10 grams of protein. How many total calories does this meal provide? (Fat = 9 cal/g, Carbohydrates = 4 cal/g, Protein = 4 cal/g) (2021)
A.
200 calories
B.
250 calories
C.
300 calories
D.
350 calories
Show solution
Solution
Total calories = (15g * 9) + (30g * 4) + (10g * 4) = 135 + 120 + 40 = 295 calories.
Correct Answer:
C
— 300 calories
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Q. A meal contains 20 grams of fat. How many calories does this contribute to the meal? (Fat = 9 cal/g) (2021)
A.
180
B.
160
C.
200
D.
220
Show solution
Solution
Calories from fat = 20g * 9 cal/g = 180 calories.
Correct Answer:
A
— 180
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Q. A meal contains 40 grams of fat. If each gram of fat provides 9 calories, how many calories are derived from fat in this meal? (2023)
A.
320 calories
B.
360 calories
C.
400 calories
D.
450 calories
Show solution
Solution
Calories from fat = 40g * 9 = 360 calories.
Correct Answer:
B
— 360 calories
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Q. A meal contains 800 calories, with 40% from carbohydrates, 30% from proteins, and 30% from fats. How many calories are from carbohydrates?
A.
240 calories
B.
320 calories
C.
400 calories
D.
480 calories
Show solution
Solution
40% of 800 calories = 0.40 * 800 = 320 calories.
Correct Answer:
B
— 320 calories
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Q. A military base has 120 soldiers. If 30% of them are on leave, how many soldiers are present? (2019)
Show solution
Solution
Soldiers on leave = 30% of 120 = 0.3 × 120 = 36. Present = 120 - 36 = 84.
Correct Answer:
B
— 80
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Q. A military base has a rectangular area of 200 m by 150 m. What is the area of the base? (2019)
A.
30000 m²
B.
25000 m²
C.
20000 m²
D.
15000 m²
Show solution
Solution
Area = Length × Width = 200 m × 150 m = 30000 m²
Correct Answer:
B
— 25000 m²
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Q. A military base is located 150 km from the city. If a vehicle travels at 75 km/h, how long will it take to reach the base? (2019)
A.
1.5 hours
B.
2 hours
C.
2.5 hours
D.
3 hours
Show solution
Solution
Time = Distance / Speed = 150 km / 75 km/h = 2 hours
Correct Answer:
B
— 2 hours
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Q. A military base is located 300 km away from the capital. If a vehicle travels at 75 km/h, how long will it take to reach the base? (2022)
A.
3 hours
B.
4 hours
C.
5 hours
D.
6 hours
Show solution
Solution
Time = Distance / Speed = 300 km / 75 km/h = 4 hours
Correct Answer:
B
— 4 hours
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Q. A military base requires 2000 liters of fuel per day. How much fuel is needed for 10 days? (2022)
A.
15000 liters
B.
18000 liters
C.
20000 liters
D.
22000 liters
Show solution
Solution
Total Fuel = Daily Requirement × Number of Days = 2000 liters/day × 10 days = 20000 liters
Correct Answer:
C
— 20000 liters
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Q. A military exercise requires 3 hours of training per day for 5 days. How many total hours of training are required? (2023)
A.
10 hours
B.
12 hours
C.
15 hours
D.
18 hours
Show solution
Solution
Total Training Hours = 3 hours/day × 5 days = 15 hours
Correct Answer:
D
— 18 hours
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Q. A military operation requires 500 liters of fuel. If one tank can carry 125 liters, how many tanks are needed? (2019)
A.
2 tanks
B.
3 tanks
C.
4 tanks
D.
5 tanks
Show solution
Solution
Number of tanks = Total fuel / Fuel per tank = 500 liters / 125 liters/tank = 4 tanks.
Correct Answer:
C
— 4 tanks
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Q. A motorbike covers a distance of 180 km in 3 hours. What is its speed? (2023)
A.
55 km/h
B.
60 km/h
C.
65 km/h
D.
70 km/h
Show solution
Solution
Speed = Distance / Time = 180 km / 3 hours = 60 km/h.
Correct Answer:
B
— 60 km/h
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Q. A national celebration occurs every 5 years. If the last celebration was in 2015, what year will the next celebration be? (2020)
A.
2020
B.
2025
C.
2021
D.
2022
Show solution
Solution
Next celebration = 2015 + 5 = 2020.
Correct Answer:
B
— 2025
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Q. A national day is celebrated on the 1st of January every year. If it is 2023 now, how many times will it be celebrated until 2025? (2023)
Show solution
Solution
Celebrations in 2023, 2024, and 2025 = 3 times.
Correct Answer:
B
— 3
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Q. A national event has a budget of $500,000. If 20% is spent on marketing, how much is left for other expenses? (2018)
A.
$400,000
B.
$350,000
C.
$300,000
D.
$450,000
Show solution
Solution
Amount spent on marketing = 20% of 500,000 = 0.20 * 500,000 = $100,000. Amount left = 500,000 - 100,000 = $400,000.
Correct Answer:
A
— $400,000
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Q. A national event has a seating capacity of 1,000. If 75% of the seats are filled, how many seats are empty?
A.
250
B.
300
C.
200
D.
400
Show solution
Solution
Number of filled seats = 75% of 1,000 = 0.75 * 1,000 = 750. Number of empty seats = 1,000 - 750 = 250.
Correct Answer:
A
— 250
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Q. A national event has a total of 500 seats. If 80% of the seats are filled, how many seats are empty? (2021)
Show solution
Solution
Number of empty seats = Total seats - Filled seats = 500 - (80% of 500) = 500 - 400 = 100.
Correct Answer:
A
— 100
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Q. A national event has a total of 500 volunteers. If 20% of them are from local colleges, how many volunteers are from local colleges?
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Solution
Number of volunteers from local colleges = 20% of 500 = 0.20 * 500 = 100.
Correct Answer:
A
— 80
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