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. If the variance of a population is 16, what is the standard deviation? (2023)
  • A. 4
  • B. 8
  • C. 16
  • D. 2
Q. If the variance of a population is 25, what is the standard deviation? (2022)
  • A. 5
  • B. 10
  • C. 15
  • D. 20
Q. If the variance of a sample is 25, what is the standard deviation? (2023)
  • A. 5
  • B. 10
  • C. 15
  • D. 20
Q. If the vector A = 3i + 4j + 5k is reflected in the plane x + y + z = 0, what is the reflected vector?
  • A. -3i - 4j - 5k
  • B. 3i + 4j + 5k
  • C. 0
  • D. None of the above
Q. If the vector A = 5i + 12j is scaled by a factor of 2, what is the new vector?
  • A. 10i + 24j
  • B. 5i + 12j
  • C. 2i + 3j
  • D. 7i + 14j
Q. If the vectors A = 1i + 2j and B = 2i + 1j, find A · B. (2023)
  • A. 4
  • B. 5
  • C. 6
  • D. 7
Q. If the vectors A = 2i + 2j and B = 2i - 2j, find A · B.
  • A. 0
  • B. 4
  • C. 8
  • D. 2
Q. If the vectors A = 2i + 3j and B = 3i + 4j are perpendicular, what is the value of A · B?
  • A. 0
  • B. 6
  • C. 12
  • D. 9
Q. If the vectors A = 3i + 4j and B = 4i + 3j, what is the scalar product A · B?
  • A. 25
  • B. 30
  • C. 32
  • D. 28
Q. If the vectors A = 5i + 5j and B = 5i - 5j, what is the scalar product A · B?
  • A. 50
  • B. 0
  • C. 25
  • D. 10
Q. If the vectors A = 6i + 8j and B = 2i + 3j, what is A · B? (2020)
  • A. 42
  • B. 48
  • C. 36
  • D. 30
Q. If the vectors A = 6i + 8j and B = 3i + 4j are perpendicular, what is the value of A · B? (2021)
  • A. 0
  • B. 18
  • C. 30
  • D. 42
Q. If the vectors A and B are such that A · B = |A| |B|, what is the angle between them?
  • A.
  • B. 90°
  • C. 180°
  • D. None of the above
Q. If the velocity of a river increases, what is the expected effect on soil erosion along its banks? (2021)
  • A. Increases erosion
  • B. Decreases erosion
  • C. No effect
  • D. Depends on soil type
Q. If the velocity of a river is 3 m/s and the width of the river is 20 m, what is the discharge of the river?
  • A. 60 m³/s
  • B. 30 m³/s
  • C. 20 m³/s
  • D. 15 m³/s
Q. If the velocity of an object doubles, what happens to its kinetic energy?
  • A. It remains the same
  • B. It doubles
  • C. It quadruples
  • D. It halves
Q. If the voltage across a resistor is doubled, what happens to the power consumed by the resistor? (2020)
  • A. It halves
  • B. It doubles
  • C. It quadruples
  • D. It remains the same
Q. If the wavelength of a light wave is doubled, what happens to its frequency? (2020)
  • A. Doubles
  • B. Halves
  • C. Remains the same
  • D. Quadruples
Q. If the wavelength of a photon is doubled, what happens to its energy? (2019)
  • A. It doubles
  • B. It halves
  • C. It remains the same
  • D. It quadruples
Q. If the wavelength of light in vacuum is 600 nm, what is its wavelength in water (n = 1.33)? (2023)
  • A. 450 nm
  • B. 600 nm
  • C. 750 nm
  • D. 800 nm
Q. If the weight of an object is measured as 50.0 kg with an uncertainty of 0.5 kg, what is the relative error?
  • A. 1%
  • B. 0.5%
  • C. 2%
  • D. 0.1%
Q. If the width of a river is 200 meters and the depth is 5 meters, what is the volume of water in one kilometer length of the river? (2021)
  • A. 100,000 m³
  • B. 1,000,000 m³
  • C. 500,000 m³
  • D. 200,000 m³
Q. If the width of a river is 200 meters and the depth is 5 meters, what is the volume of water in cubic meters that flows through the river in one second if the velocity of the water is 3 m/s?
  • A. 3000
  • B. 1000
  • C. 6000
  • D. 5000
Q. If the wind is blowing from the north at 10 km/h, what is the wind direction?
  • A. North
  • B. South
  • C. East
  • D. West
Q. If two angles are complementary and one angle measures 30 degrees, what is the measure of the other angle? (2023)
  • A. 60 degrees
  • B. 90 degrees
  • C. 30 degrees
  • D. 45 degrees
Q. If two angles are complementary and one angle measures 35 degrees, what is the measure of the other angle? (2023)
  • A. 45 degrees
  • B. 55 degrees
  • C. 65 degrees
  • D. 75 degrees
Q. If two angles are equal and their sum is 180 degrees, what is the measure of each angle? (2022)
  • A. 90 degrees
  • B. 60 degrees
  • C. 45 degrees
  • D. 30 degrees
Q. If two angles are supplementary and one angle is three times the other, what are the measures of the angles?
  • A. 30 degrees and 150 degrees
  • B. 45 degrees and 135 degrees
  • C. 60 degrees and 120 degrees
  • D. 75 degrees and 105 degrees
Q. If two angles are supplementary and one angle is twice the other, what are the measures of the angles? (2022)
  • A. 30 degrees and 60 degrees
  • B. 45 degrees and 135 degrees
  • C. 90 degrees and 90 degrees
  • D. 40 degrees and 140 degrees
Q. If two angles are supplementary and one angle measures 110 degrees, what is the measure of the other angle? (2019)
  • A. 70 degrees
  • B. 80 degrees
  • C. 90 degrees
  • D. 100 degrees
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