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UPSC CDS Practice Questions
Original practice questions for the Combined Defence Services Examination (Union Public Service Commission (UPSC)), mixed across 6 topics with instant answers and explanations. Practise by topic below or take the timed mock test.
UPSC CDS mixed practice
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Q1.English GrammarIdentify the error: “Each of the students have submitted their assignment.”
Show answer & explanation
Answer: C — have submitted
“Each” is singular, so the verb should be “has submitted”.
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Q2.Vocabulary & IdiomsChoose the antonym of FRUGAL.
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Answer: C — Extravagant
Frugal = sparing with money; extravagant = spending excessively.
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Q3.Indian Polity, History & GeographyFundamental Rights are contained in which Part of the Constitution?
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Answer: D — Part III
Part III (Articles 12–35) lists the Fundamental Rights.
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Q4.PhysicsWhich quantity is a vector?
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Answer: A — Velocity
Velocity has magnitude and direction.
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Q5.PercentagesWhat is 45% of 800?
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Answer: B — 360
45% of 800 = 45/100 × 800 = 360.
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Q6.Geometry & MensurationFind the area of a right triangle with legs 8 cm and 15 cm.
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Answer: C — 60 cm²
Area = ½ × base × height = ½ × 8 × 15 = 60 cm².
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Q7.English GrammarChoose the correct conditional: If it rains tomorrow, we ___ the match.
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Answer: D — will cancel
First conditional (real future possibility): if + present, will + base verb.
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Q8.Vocabulary & IdiomsChoose the antonym of BENEVOLENT.
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Answer: C — Malevolent
Benevolent = well-meaning; malevolent = wishing harm.
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Q9.Indian Polity, History & GeographyWho wrote the national anthem “Jana Gana Mana”?
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Answer: A — Rabindranath Tagore
Rabindranath Tagore wrote it; it was adopted as the national anthem in 1950.
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Q10.PhysicsFind the kinetic energy of a 11 kg body moving at 13 m/s.
Show answer & explanation
Answer: D — 929.5 J
KE = ½mv² = ½ × 11 × 13² = 929.5 J.
About UPSC CDS
Combined Defence Services Examination — conducted by Union Public Service Commission (UPSC). Selects officers for the Indian Military Academy, Naval Academy, Air Force Academy and Officers’ Training Academy.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
Practise by topic
- English Grammar questions — Find the subject first and make the verb agree with it, ignoring phrases in between.
- Vocabulary & Idioms questions — Learn words in synonym/antonym pairs and by roots (bene = good, mal = bad, chron = time).
- Indian Polity, History & Geography questions — Anchor facts to the Constitution’s Parts and key Articles (III Fundamental Rights, IV DPSP, 32, 352, 356, 360) and build timelines for the freedom struggle.
- Physics questions — Write the formula before substituting and keep SI units throughout.
- Percentages questions — Convert percentages to fractions you know by heart (12.5% = 1/8, 37.5% = 3/8, 16.67% = 1/6) and always divide a change by the ORIGINAL value.
- Geometry & Mensuration questions — Memorise core formulas (circle πr², triangle ½bh, Pythagoras, distance √((x₂−x₁)² + (y₂−y₁)²)).
- UPSC CDS mock test — 25 timed questions with negative marking.
UPSC CDS practice topics
| Topic | Section | Question source |
|---|---|---|
| English Grammar | English | Question bank |
| Vocabulary & Idioms | English | Question bank |
| Indian Polity, History & Geography | General awareness | Question bank |
| Physics | Science | Calculated + question bank |
| Percentages | Quantitative aptitude | Calculated (new numbers every set) |
| Geometry & Mensuration | Mathematics | Calculated (new numbers every set) |