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. In triangle JKL, if JK = 15 cm, KL = 20 cm, and JL = 25 cm, what is the semi-perimeter of the triangle? (2022)
A.
30 cm
B.
25 cm
C.
20 cm
D.
35 cm
Show solution
Solution
Semi-perimeter = (JK + KL + JL) / 2 = (15 + 20 + 25) / 2 = 30 cm.
Correct Answer:
A
— 30 cm
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Q. In triangle JKL, if JK = 15 cm, KL = 20 cm, and JL = 25 cm, what is the semi-perimeter? (2022)
A.
30 cm
B.
25 cm
C.
20 cm
D.
15 cm
Show solution
Solution
Semi-perimeter = (JK + KL + JL) / 2 = (15 + 20 + 25) / 2 = 30 cm.
Correct Answer:
A
— 30 cm
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Q. In triangle JKL, if JK = 15 cm, KL = 20 cm, and JL = 25 cm, what is the type of triangle? (2023)
A.
Equilateral
B.
Isosceles
C.
Scalene
D.
Right-angled
Show solution
Solution
Since 15² + 20² = 25² (225 + 400 = 625), triangle JKL is a right-angled triangle.
Correct Answer:
D
— Right-angled
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Q. In triangle JKL, if JK = 5 cm, KL = 12 cm, and JL = 13 cm, what is the type of triangle? (2023)
A.
Equilateral
B.
Isosceles
C.
Scalene
D.
Right-angled
Show solution
Solution
Since 5² + 12² = 13² (25 + 144 = 169), triangle JKL is a right-angled triangle.
Correct Answer:
D
— Right-angled
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Q. In triangle MNO, if MN = 8 cm, NO = 15 cm, and MO = 17 cm, what is the type of triangle? (2023)
A.
Equilateral
B.
Isosceles
C.
Scalene
D.
Right-angled
Show solution
Solution
Using the Pythagorean theorem, 8² + 15² = 64 + 225 = 289 = 17². Hence, it is a right-angled triangle.
Correct Answer:
D
— Right-angled
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Q. In triangle PQR, if PQ = 10 cm, PR = 24 cm, and QR = 26 cm, what is the area of the triangle? (2019)
A.
120 cm²
B.
240 cm²
C.
60 cm²
D.
80 cm²
Show solution
Solution
Using Heron's formula, s = (10 + 24 + 26) / 2 = 30. Area = √(30(30-10)(30-24)(30-26)) = √(30*20*6*4) = √(4800) = 120 cm².
Correct Answer:
A
— 120 cm²
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Q. In triangle PQR, if PQ = 8 cm, QR = 6 cm, and PR = 10 cm, what is the perimeter of the triangle? (2022)
A.
24 cm
B.
26 cm
C.
22 cm
D.
20 cm
Show solution
Solution
Perimeter = PQ + QR + PR = 8 + 6 + 10 = 24 cm.
Correct Answer:
A
— 24 cm
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Q. In triangle PQR, if PQ = 8 cm, QR = 6 cm, and PR = 10 cm, what is the semi-perimeter of the triangle? (2022)
A.
12 cm
B.
14 cm
C.
16 cm
D.
18 cm
Show solution
Solution
Semi-perimeter = (PQ + QR + PR) / 2 = (8 + 6 + 10) / 2 = 12 cm.
Correct Answer:
B
— 14 cm
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Q. In triangle PQR, if PQ = 8 cm, QR = 6 cm, and PR = 10 cm, what is the semi-perimeter? (2022)
A.
12 cm
B.
14 cm
C.
16 cm
D.
18 cm
Show solution
Solution
Semi-perimeter = (PQ + QR + PR) / 2 = (8 + 6 + 10) / 2 = 12 cm.
Correct Answer:
B
— 14 cm
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Q. In triangle XYZ, if angle X = 45 degrees and angle Y = 45 degrees, what is the length of side XY if side XZ = 10 cm? (2020)
A.
5√2 cm
B.
10 cm
C.
10√2 cm
D.
20 cm
Show solution
Solution
In an isosceles right triangle, the sides opposite the 45-degree angles are equal. Therefore, XY = XZ / √2 = 10 / √2 = 5√2 cm.
Correct Answer:
A
— 5√2 cm
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Q. In triangle XYZ, if angle X = 45 degrees and angle Y = 45 degrees, what is the ratio of the sides opposite to these angles? (2021)
A.
1:1
B.
1:√2
C.
√2:1
D.
2:1
Show solution
Solution
In an isosceles triangle with angles 45-45-90, the sides opposite the equal angles are equal, hence the ratio is 1:1.
Correct Answer:
A
— 1:1
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Q. In triangle XYZ, if angle X = 45 degrees and angle Y = 45 degrees, what is the ratio of the lengths of sides opposite to these angles? (2021)
A.
1:1
B.
1:√2
C.
√2:1
D.
2:1
Show solution
Solution
In an isosceles triangle with angles 45 degrees, the sides opposite these angles are equal, hence the ratio is 1:1.
Correct Answer:
A
— 1:1
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Q. In triangle XYZ, if XY = 12 cm, YZ = 16 cm, and XZ = 20 cm, what is the semi-perimeter? (2020)
A.
24 cm
B.
28 cm
C.
30 cm
D.
32 cm
Show solution
Solution
Semi-perimeter s = (XY + YZ + XZ)/2 = (12 + 16 + 20)/2 = 24 cm.
Correct Answer:
A
— 24 cm
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Q. In triangle XYZ, if XY = 8 cm, YZ = 15 cm, and XZ = 17 cm, what is the length of the longest side? (2020)
A.
8 cm
B.
15 cm
C.
17 cm
D.
Not determinable
Show solution
Solution
The longest side in triangle XYZ is XZ, which measures 17 cm.
Correct Answer:
C
— 17 cm
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Q. In what year did India gain independence and subsequently join the United Nations? (1947)
A.
1947
B.
1948
C.
1950
D.
1952
Show solution
Solution
India gained independence in 1947 and joined the United Nations on October 30, 1948.
Correct Answer:
B
— 1948
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Q. In what year did India gain independence from British rule? (1947)
A.
1942
B.
1945
C.
1947
D.
1950
Show solution
Solution
India gained independence from British rule on August 15, 1947.
Correct Answer:
C
— 1947
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Q. In what year did Nelson Mandela become the President of South Africa? (1994)
A.
1990
B.
1994
C.
1996
D.
1998
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Solution
Nelson Mandela was inaugurated as President of South Africa on May 10, 1994.
Correct Answer:
B
— 1994
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Q. In what year did the European Union officially come into existence? (1992)
A.
1992
B.
1995
C.
2000
D.
2004
Show solution
Solution
The European Union was officially established by the Maastricht Treaty in 1992.
Correct Answer:
A
— 1992
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Q. In what year did the Rwandan Genocide occur? (1994)
A.
1992
B.
1994
C.
1996
D.
1998
Show solution
Solution
The Rwandan Genocide occurred in 1994, resulting in the deaths of an estimated 800,000 people.
Correct Answer:
B
— 1994
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Q. In what year did the United Kingdom vote to leave the European Union? (2016)
A.
2014
B.
2015
C.
2016
D.
2017
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Solution
The United Kingdom voted to leave the European Union in a referendum held on June 23, 2016.
Correct Answer:
C
— 2016
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Q. In what year did the United Nations adopt the Universal Declaration of Human Rights? (1948)
A.
1945
B.
1948
C.
1950
D.
1952
Show solution
Solution
The Universal Declaration of Human Rights was adopted on December 10, 1948.
Correct Answer:
B
— 1948
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Q. In what year did the United Nations General Assembly adopt the Universal Declaration of Human Rights? (1948)
A.
1945
B.
1948
C.
1950
D.
1952
Show solution
Solution
The Universal Declaration of Human Rights was adopted on December 10, 1948.
Correct Answer:
B
— 1948
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Q. In which medium does sound travel the slowest?
A.
Air
B.
Water
C.
Steel
D.
Vacuum
Show solution
Solution
Sound travels slowest in air compared to water and solids like steel.
Correct Answer:
A
— Air
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Q. In which type of river does the velocity of water increase as it flows downstream?
A.
Meandering river
B.
Straight river
C.
Braided river
D.
Alluvial river
Show solution
Solution
In a meandering river, the velocity of water generally increases downstream due to the decrease in cross-sectional area and increase in gradient.
Correct Answer:
A
— Meandering river
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Q. In which year did India achieve a GDP growth rate of 8.4% post-COVID? (2021)
A.
2020
B.
2021
C.
2022
D.
2023
Show solution
Solution
India achieved a GDP growth rate of 8.4% in the year 2021 as it recovered from the COVID-19 pandemic.
Correct Answer:
B
— 2021
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Q. In which year did India achieve its highest GDP growth rate in the last decade? (2019)
A.
2018
B.
2019
C.
2020
D.
2021
Show solution
Solution
India achieved its highest GDP growth rate of 8.3% in 2019.
Correct Answer:
B
— 2019
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Q. In which year did India become a Republic? (1950)
A.
1947
B.
1950
C.
1952
D.
1949
Show solution
Solution
India became a Republic on January 26, 1950, when the Constitution came into effect.
Correct Answer:
B
— 1950
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Q. In which year did India gain independence from British rule? (1947)
A.
1942
B.
1945
C.
1947
D.
1950
Show solution
Solution
India gained independence from British rule on August 15, 1947.
Correct Answer:
C
— 1947
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Q. In which year did the Berlin Wall fall, marking a significant event in international relations? (1989)
A.
1987
B.
1989
C.
1991
D.
1993
Show solution
Solution
The Berlin Wall fell on November 9, 1989, symbolizing the end of the Cold War.
Correct Answer:
B
— 1989
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Q. In which year did the Berlin Wall fall, symbolizing the end of the Cold War? (1989)
A.
1987
B.
1989
C.
1991
D.
1993
Show solution
Solution
The Berlin Wall fell on November 9, 1989, marking a significant event in the Cold War.
Correct Answer:
B
— 1989
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