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. What is the angle between the vectors A = 2i + 2j and B = 2i - 2j?
A.
0 degrees
B.
45 degrees
C.
90 degrees
D.
180 degrees
Show solution
Solution
cos(θ) = (A · B) / (|A||B|) = (8) / (√8 * √8) = 1, θ = 0 degrees.
Correct Answer:
C
— 90 degrees
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Q. What is the angle between the vectors A = i + j and B = 2i + 2j?
A.
45 degrees
B.
60 degrees
C.
90 degrees
D.
30 degrees
Show solution
Solution
cos(θ) = (A · B) / (|A||B|) = (1*2 + 1*2) / (√2 * √8) = 4 / (2√2) = √2. θ = 45 degrees.
Correct Answer:
A
— 45 degrees
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Q. What is the angular distance in degrees between two longitudes of 30°E and 90°E?
A.
60°
B.
90°
C.
120°
D.
150°
Show solution
Solution
The angular distance is calculated as |90° - 30°| = 60°.
Correct Answer:
A
— 60°
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Q. What is the angular distance in degrees between two longitudes that are 1 hour apart in time? (2021)
A.
15 degrees
B.
30 degrees
C.
45 degrees
D.
60 degrees
Show solution
Solution
The Earth rotates 360 degrees in 24 hours, so in 1 hour it rotates 360/24 = 15 degrees.
Correct Answer:
A
— 15 degrees
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Q. What is the angular distance in degrees between two longitudes that are 4 hours apart in time? (2021)
A.
60 degrees
B.
90 degrees
C.
120 degrees
D.
180 degrees
Show solution
Solution
The Earth rotates 360 degrees in 24 hours, so in 1 hour it rotates 15 degrees. Therefore, in 4 hours, it rotates 4 * 15 = 60 degrees.
Correct Answer:
A
— 60 degrees
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Q. What is the angular distance in degrees between two meridians that are 1 hour apart in time? (2021)
A.
15 degrees
B.
30 degrees
C.
45 degrees
D.
60 degrees
Show solution
Solution
The Earth rotates 360 degrees in 24 hours, so in 1 hour, it rotates 360/24 = 15 degrees.
Correct Answer:
A
— 15 degrees
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Q. What is the antonym of 'abundant'?
A.
Plentiful
B.
Scarce
C.
Sufficient
D.
Ample
Show solution
Solution
'Scarce' is the opposite of 'abundant'.
Correct Answer:
B
— Scarce
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Q. What is the antonym of 'accept'? (2023)
A.
Receive
B.
Reject
C.
Allow
D.
Embrace
Show solution
Solution
'Reject' is the opposite of 'accept', meaning to refuse to take or agree to something.
Correct Answer:
B
— Reject
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Q. What is the antonym of 'ancient'?
A.
Old
B.
Modern
C.
Historical
D.
Traditional
Show solution
Solution
'Modern' is the opposite of 'ancient'.
Correct Answer:
B
— Modern
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Q. What is the antonym of 'complex'? (2023)
A.
Simple
B.
Complicated
C.
Difficult
D.
Intricate
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Solution
'Simple' is the opposite of 'complex', indicating something that is easy to understand or do.
Correct Answer:
A
— Simple
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Q. What is the antonym of 'early'? (2023)
A.
Late
B.
Prompt
C.
Timely
D.
On-time
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Solution
'Late' is the opposite of 'early'.
Correct Answer:
A
— Late
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Q. What is the antonym of 'expand'? (2022)
A.
Contract
B.
Grow
C.
Increase
D.
Enlarge
Show solution
Solution
'Contract' is the opposite of 'expand', meaning to decrease in size.
Correct Answer:
A
— Contract
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Q. What is the antonym of 'frequent'?
A.
Rare
B.
Common
C.
Usual
D.
Regular
Show solution
Solution
'Rare' is the opposite of 'frequent'.
Correct Answer:
A
— Rare
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Q. What is the antonym of 'happy'?
A.
Joyful
B.
Content
C.
Sad
D.
Cheerful
Show solution
Solution
'Sad' is the opposite of 'happy'.
Correct Answer:
C
— Sad
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Q. What is the antonym of 'increase'? (2021)
A.
Expand
B.
Augment
C.
Diminish
D.
Enhance
Show solution
Solution
'Diminish' is the opposite of 'increase', which means to make smaller or reduce.
Correct Answer:
C
— Diminish
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Q. What is the antonym of 'noisy'? (2023)
A.
Loud
B.
Quiet
C.
Boisterous
D.
Raucous
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Solution
'Quiet' is the opposite of 'noisy', referring to a lack of sound.
Correct Answer:
B
— Quiet
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Q. What is the antonym of 'optimistic'? (2022)
A.
Hopeful
B.
Pessimistic
C.
Positive
D.
Confident
Show solution
Solution
'Pessimistic' is the opposite of 'optimistic', indicating a tendency to see the worst aspect of things.
Correct Answer:
B
— Pessimistic
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Q. What is the antonym of 'simple'? (2019)
A.
Complicated
B.
Easy
C.
Straightforward
D.
Clear
Show solution
Solution
'Complicated' is the opposite of 'simple', meaning something that is difficult to understand.
Correct Answer:
A
— Complicated
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Q. What is the antonym of 'succeed'? (2019)
A.
Fail
B.
Achieve
C.
Accomplish
D.
Win
Show solution
Solution
'Fail' is the opposite of 'succeed', indicating a lack of success.
Correct Answer:
A
— Fail
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Q. What is the antonym of 'victorious'?
A.
Winning
B.
Triumphant
C.
Defeated
D.
Successful
Show solution
Solution
'Defeated' is the opposite of 'victorious'.
Correct Answer:
C
— Defeated
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Q. What is the antonym of 'victory'? (2021)
A.
Success
B.
Defeat
C.
Triumph
D.
Win
Show solution
Solution
'Defeat' is the opposite of 'victory', indicating loss.
Correct Answer:
B
— Defeat
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Q. What is the antonym of 'visible'? (2023)
A.
Obscure
B.
Clear
C.
Apparent
D.
Evident
Show solution
Solution
'Obscure' means not visible or hard to see, which is the opposite of 'visible'.
Correct Answer:
A
— Obscure
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Q. What is the approximate area of India in square kilometers?
A.
3.28 million
B.
2.87 million
C.
4.12 million
D.
1.96 million
Show solution
Solution
The approximate area of India is 3.28 million square kilometers.
Correct Answer:
A
— 3.28 million
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Q. What is the approximate circumference of the Earth at the equator?
A.
4000 km
B.
24000 km
C.
30000 km
D.
50000 km
Show solution
Solution
The circumference of the Earth at the equator is approximately 24000 km.
Correct Answer:
B
— 24000 km
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Q. What is the approximate depth of the Earth's mantle?
A.
Up to 700 km
B.
Up to 2,900 km
C.
Up to 5,000 km
D.
Up to 6,371 km
Show solution
Solution
The mantle extends from the base of the crust to about 2,900 km deep.
Correct Answer:
B
— Up to 2,900 km
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Q. What is the approximate depth of the Mohorovičić discontinuity (Moho)?
A.
5 km
B.
10 km
C.
30 km
D.
50 km
Show solution
Solution
The Mohorovičić discontinuity (Moho) is located at an average depth of about 30 km beneath the Earth's surface.
Correct Answer:
C
— 30 km
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Q. What is the approximate distance in kilometers of one degree of longitude at the equator? (2019)
A.
60 km
B.
70 km
C.
111 km
D.
150 km
Show solution
Solution
At the equator, one degree of longitude is approximately 111 kilometers.
Correct Answer:
C
— 111 km
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Q. What is the approximate distance in kilometers represented by 1 degree of latitude? (2021)
A.
111 km
B.
100 km
C.
90 km
D.
120 km
Show solution
Solution
1 degree of latitude is approximately equal to 111 kilometers.
Correct Answer:
A
— 111 km
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Q. What is the approximate temperature at the boundary between the Earth's crust and mantle? (2020)
A.
200°C
B.
500°C
C.
1,000°C
D.
1,500°C
Show solution
Solution
The temperature at the boundary between the Earth's crust and mantle is approximately 1,000°C.
Correct Answer:
C
— 1,000°C
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Q. What is the approximate temperature at the Earth's inner core? (2023)
A.
4000°C
B.
5000°C
C.
6000°C
D.
7000°C
Show solution
Solution
The temperature at the Earth's inner core is estimated to be around 5000°C to 6000°C.
Correct Answer:
C
— 6000°C
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