NDA MCQ & Objective Questions
The National Defence Academy (NDA) exam is a crucial stepping stone for students aspiring to join the Indian Armed Forces. It tests not only knowledge but also the ability to apply concepts effectively. Practicing NDA MCQs and objective questions is essential for enhancing your exam preparation, as it helps in identifying important questions and boosts confidence in tackling various subjects.
What You Will Practise Here
Mathematics: Key concepts, formulas, and problem-solving techniques.
General Knowledge: Current affairs, history, and geography relevant to NDA.
English: Grammar, comprehension, and vocabulary exercises.
Physics: Fundamental principles and application-based questions.
Chemistry: Important definitions, reactions, and theoretical concepts.
Logical Reasoning: Techniques for solving puzzles and analytical questions.
Military History: Significant events and figures in Indian military history.
Exam Relevance
The NDA exam is not only significant for aspiring defence candidates but also aligns with various school and competitive exams like CBSE, State Boards, NEET, and JEE. Questions often follow a pattern that includes multiple-choice formats, requiring students to apply their knowledge effectively. Understanding the common question types and formats will enhance your readiness for these exams.
Common Mistakes Students Make
Misinterpreting questions due to lack of careful reading.
Overlooking important formulas in Mathematics and Physics.
Confusing similar concepts in Chemistry and General Knowledge.
Neglecting to practice logical reasoning, leading to time management issues.
Failing to revise key definitions and terms in English and other subjects.
FAQs
Question: What are NDA MCQ questions?Answer: NDA MCQ questions are multiple-choice questions designed to test your knowledge and understanding of various subjects relevant to the NDA exam.
Question: How can I prepare for NDA objective questions with answers?Answer: Regular practice of NDA objective questions, along with reviewing answers and explanations, will help solidify your understanding and improve your performance.
Question: What are some important NDA questions for exams?Answer: Important NDA questions often cover key concepts in Mathematics, General Knowledge, English, and Science, focusing on application and analytical skills.
Start your journey towards success by solving NDA practice MCQs today! Testing your understanding through these objective questions will not only prepare you for the exam but also build your confidence to excel.
Q. Which of the following lines is parallel to the line 3x - 4y + 5 = 0?
A.
6x - 8y + 10 = 0
B.
4x + 3y - 7 = 0
C.
3x + 4y - 5 = 0
D.
2x - 3y + 1 = 0
Show solution
Solution
Parallel lines have the same slope. The slope of the given line is 3/4, and the line 6x - 8y + 10 = 0 also has the same slope.
Correct Answer:
A
— 6x - 8y + 10 = 0
Learn More →
Q. Which of the following longitudes is closest to the International Date Line?
A.
150°E
B.
180°
C.
150°W
D.
120°W
Show solution
Solution
The International Date Line is at 180°, so the closest longitude is 180°.
Correct Answer:
B
— 180°
Learn More →
Q. Which of the following materials has the highest speed of sound?
A.
Air
B.
Water
C.
Steel
D.
Wood
Show solution
Solution
Sound travels fastest in solids; hence, the speed of sound in steel is higher than in air, water, or wood.
Correct Answer:
C
— Steel
Learn More →
Q. Which of the following materials is the best conductor of sound?
A.
Air
B.
Water
C.
Steel
D.
Wood
Show solution
Solution
Sound travels fastest in solids, and steel is a solid material that conducts sound well.
Correct Answer:
C
— Steel
Learn More →
Q. Which of the following materials would sound travel fastest through? (2019)
A.
Air
B.
Water
C.
Steel
D.
Wood
Show solution
Solution
Sound travels fastest through solids like steel due to closely packed molecules.
Correct Answer:
C
— Steel
Learn More →
Q. Which of the following matrices is a diagonal matrix? (2023)
A.
[[1, 0], [0, 2]]
B.
[[1, 2], [3, 4]]
C.
[[0, 1], [1, 0]]
D.
[[1, 1], [1, 1]]
Show solution
Solution
A diagonal matrix is one where all off-diagonal elements are zero. The matrix [[1, 0], [0, 2]] is a diagonal matrix.
Correct Answer:
A
— [[1, 0], [0, 2]]
Learn More →
Q. Which of the following matrices is a zero matrix? (2022)
A.
[[0, 0], [0, 0]]
B.
[[1, 0], [0, 1]]
C.
[[1, 2], [3, 4]]
D.
[[0, 1], [1, 0]]
Show solution
Solution
A zero matrix is one where all elements are zero. The matrix [[0, 0], [0, 0]] meets this criterion.
Correct Answer:
A
— [[0, 0], [0, 0]]
Learn More →
Q. Which of the following matrices is an identity matrix? (2023)
A.
[[1, 0], [0, 1]]
B.
[[0, 1], [1, 0]]
C.
[[1, 1], [1, 1]]
D.
[[0, 0], [0, 0]]
Show solution
Solution
An identity matrix has 1s on the diagonal and 0s elsewhere. The matrix [[1, 0], [0, 1]] fits this definition.
Correct Answer:
A
— [[1, 0], [0, 1]]
Learn More →
Q. Which of the following matrices is an orthogonal matrix? (2021)
A.
A matrix whose transpose is equal to its inverse
B.
A matrix with all elements equal
C.
A matrix with only one row
D.
A matrix with all diagonal elements equal
Show solution
Solution
An orthogonal matrix is defined as a matrix whose transpose is equal to its inverse.
Correct Answer:
A
— A matrix whose transpose is equal to its inverse
Learn More →
Q. Which of the following matrices is not invertible? (2019)
A.
[[1, 2], [3, 4]]
B.
[[0, 1], [0, 0]]
C.
[[5, 6], [7, 8]]
D.
[[9, 10], [11, 12]]
Show solution
Solution
A matrix is not invertible if its determinant is zero. The matrix [[0, 1], [0, 0]] has a determinant of 0.
Correct Answer:
B
— [[0, 1], [0, 0]]
Learn More →
Q. Which of the following matrices is symmetric? (2023)
A.
A = [[1, 2], [3, 4]]
B.
B = [[1, 2], [2, 1]]
C.
C = [[1, 0], [0, 1]]
D.
D = [[1, 2, 3], [4, 5, 6]]
Show solution
Solution
A symmetric matrix is one that is equal to its transpose. Matrix B is symmetric because B = B^T.
Correct Answer:
B
— B = [[1, 2], [2, 1]]
Learn More →
Q. Which of the following metals is known for its resistance to corrosion? (2019)
A.
Iron
B.
Copper
C.
Aluminum
D.
Gold
Show solution
Solution
Gold is highly resistant to corrosion, which is why it is often used in jewelry and electronics.
Correct Answer:
D
— Gold
Learn More →
Q. Which of the following metals is known to be the least reactive?
A.
Gold
B.
Sodium
C.
Potassium
D.
Calcium
Show solution
Solution
Gold is known to be the least reactive metal, making it resistant to corrosion and oxidation.
Correct Answer:
A
— Gold
Learn More →
Q. Which of the following metals is known to be the most malleable?
A.
Iron
B.
Gold
C.
Lead
D.
Copper
Show solution
Solution
Gold is known to be the most malleable metal, capable of being drawn into extremely thin sheets.
Correct Answer:
B
— Gold
Learn More →
Q. Which of the following metals is known to react vigorously with water? (2022)
A.
Iron
B.
Sodium
C.
Copper
D.
Lead
Show solution
Solution
Sodium reacts vigorously with water to produce sodium hydroxide and hydrogen gas.
Correct Answer:
B
— Sodium
Learn More →
Q. Which of the following metals is known to react with water at room temperature? (2019)
A.
Iron
B.
Sodium
C.
Copper
D.
Gold
Show solution
Solution
Sodium reacts vigorously with water at room temperature, producing sodium hydroxide and hydrogen gas.
Correct Answer:
B
— Sodium
Learn More →
Q. Which of the following metals is liquid at room temperature? (2023)
A.
Mercury
B.
Lead
C.
Tin
D.
Bismuth
Show solution
Solution
Mercury is the only metal that is liquid at room temperature.
Correct Answer:
A
— Mercury
Learn More →
Q. Which of the following metals is most reactive? (2019)
A.
Gold
B.
Silver
C.
Sodium
D.
Copper
Show solution
Solution
Sodium is a highly reactive metal, especially with water, compared to the other metals listed.
Correct Answer:
C
— Sodium
Learn More →
Q. Which of the following metals is the best conductor of electricity?
A.
Copper
B.
Aluminum
C.
Gold
D.
Silver
Show solution
Solution
Silver is the best conductor of electricity among metals due to its high electron mobility.
Correct Answer:
D
— Silver
Learn More →
Q. Which of the following metals is used in making aircraft due to its lightweight? (2020)
A.
Lead
B.
Aluminum
C.
Iron
D.
Copper
Show solution
Solution
Aluminum is widely used in aircraft manufacturing because of its lightweight and strength.
Correct Answer:
B
— Aluminum
Learn More →
Q. Which of the following metals is used in making alloys?
A.
Mercury
B.
Tin
C.
Bismuth
D.
Lead
Show solution
Solution
Tin is commonly used in making alloys, such as bronze when combined with copper.
Correct Answer:
B
— Tin
Learn More →
Q. Which of the following metals is used in making electrical wires?
A.
Zinc
B.
Copper
C.
Aluminum
D.
Iron
Show solution
Solution
Copper is widely used in electrical wiring due to its excellent conductivity.
Correct Answer:
B
— Copper
Learn More →
Q. Which of the following metals reacts vigorously with water?
A.
Copper
B.
Sodium
C.
Iron
D.
Gold
Show solution
Solution
Sodium reacts vigorously with water to produce sodium hydroxide and hydrogen gas.
Correct Answer:
B
— Sodium
Learn More →
Q. Which of the following mountain ranges is located in India?
A.
Andes
B.
Himalayas
C.
Rockies
D.
Alps
Show solution
Solution
The Himalayas are the major mountain range located in India.
Correct Answer:
B
— Himalayas
Learn More →
Q. Which of the following non-metals is a gas at room temperature?
A.
Phosphorus
B.
Sulfur
C.
Chlorine
D.
Carbon
Show solution
Solution
Chlorine is a non-metal that exists as a gas at room temperature.
Correct Answer:
C
— Chlorine
Learn More →
Q. Which of the following non-metals is a good insulator? (2023)
A.
Graphite
B.
Sulfur
C.
Phosphorus
D.
Diamond
Show solution
Solution
Diamond is a non-metal that is a good insulator due to its strong covalent bonds.
Correct Answer:
D
— Diamond
Learn More →
Q. Which of the following non-metals is a key component of DNA?
A.
Oxygen
B.
Nitrogen
C.
Carbon
D.
Hydrogen
Show solution
Solution
Nitrogen is a key component of DNA, forming part of the nucleotides that make up the genetic code.
Correct Answer:
B
— Nitrogen
Learn More →
Q. Which of the following non-metals is used in fertilizers?
A.
Nitrogen
B.
Oxygen
C.
Helium
D.
Argon
Show solution
Solution
Nitrogen is a key component in fertilizers, promoting plant growth.
Correct Answer:
A
— Nitrogen
Learn More →
Q. Which of the following numbers is a perfect square?
Show solution
Solution
25 is a perfect square (5^2).
Correct Answer:
C
— 25
Learn More →
Q. Which of the following points lies on the parabola y = x^2 - 4?
A.
(2, 0)
B.
(0, -4)
C.
(1, -3)
D.
(3, 5)
Show solution
Solution
Substituting x = 1 into the equation gives y = 1^2 - 4 = -3, so the point (1, -3) lies on the parabola.
Correct Answer:
C
— (1, -3)
Learn More →
Showing 3661 to 3690 of 3872 (130 Pages)
