UPSC NDA & NA (II) 2026 - Free Mock Test

Q1. If A and B are two sets such that n(A) = 17, n(B) = 23, and n(A ∪ B) = 38, then what is n(A ∩ B)?

Q2. What is the value of sin(15°)?

Q3. If a matrix A is symmetric as well as skew-symmetric, then which of the following is true?

Q4. Which of the following electromagnetic waves has the shortest wavelength?

Q5. Which gas is primarily responsible for the greenhouse effect on Earth?

Q6. Identify the synonym of the word 'ABANDON'.

Q7. Who was the founder of the Brahmo Samaj?

Q8. Which river is historically known as the 'Sorrow of Bengal'?

Q9. Which vitamin is synthesized in the human body in the presence of sunlight?

Q10. Where is the headquarters of the National Defence Academy (NDA) located?