Defence | DRDO CEPTAM-11 (Technical)
DRDO CEPTAM-11 (Technical) sets 280 General Science questions for 280 marks across 3 stages, so it is worth planning your preparation around the topics below.
Physics, chemistry and biology at roughly the secondary-school level, tested as direct factual recall. NCERT-level fundamentals cover most of it, and the questions repeat across cycles, so past-paper topics are the sharpest guide to what to revise.
How much General Science is worth in each DRDO CEPTAM-11 (Technical) stage, from the official pattern.
| Stage | Questions | Marks | Time | Share |
|---|---|---|---|---|
| Tier-I CBT (Screening Test) | 40 | 40 | — | 27% |
| Tier-II CBT — STA-B (Subject-specific test) | 120 | 120 | — | 100% |
| Tier-II CBT — Technician-A (Subject-specific test) | 120 | 120 | — | 100% |
Every topic in the official syllabus. The linked ones open a set of solved questions you can practise straight away.
Written to the DRDO CEPTAM-11 (Technical) pattern, with the answer key and the method behind it — a look at how the section is actually set before you drill the full topic sets.
Biology · solved example
Which organelle is known as the 'powerhouse of the cell'?
Solution
Mitochondria produce ATP through cellular respiration, earning the nickname 'powerhouse of the cell'. Ribosomes make proteins; Golgi bodies package them; lysosomes digest waste.
Physics · solved example
What is the boiling point of water at standard atmospheric pressure?
Solution
At standard atmospheric pressure (1 atm), water boils at 100 °C. Zero °C is the freezing point.
Chemistry · solved example
Which gas is commonly used to fill electric bulbs to prevent filament oxidation?
Solution
Inert gases like argon or nitrogen are filled in bulbs to reduce oxidation of the tungsten filament. Oxygen would cause the filament to burn out quickly.
Environment · solved example
The ozone layer in the atmosphere protects us from:
Solution
The stratospheric ozone layer absorbs most of the Sun's harmful ultraviolet (UV) radiation, protecting life on Earth.
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General Science shows up in every DRDO CEPTAM-11 (Technical) mock test, in the same interface, with sectional locking and negative marking.
DRDO CEPTAM-11 Tier-I: 16-question practice mock
16 questions | 20 min
DRDO CEPTAM-11 (Technical) CEPTAM-11 sets 280 General Science questions for 280 marks, split across 40 in the Tier-I CBT (Screening Test) and 120 in the Tier-II CBT — STA-B (Subject-specific test) and 120 in the Tier-II CBT — Technician-A (Subject-specific test).
Yes. DRDO CEPTAM-11 (Technical) deducts one fourth of a mark for each wrong answer, General Science included, so unsure guesses cost you. 0.25 marks are deducted for each wrong answer; each question carries 1 mark. Minimum qualifying marks: 40% for UR, OBC and EWS; 35% for SC, ST and PwBD.
The DRDO CEPTAM-11 (Technical) syllabus lists Physics, chemistry and biology fundamentals, Everyday science and applications, Environment and general scientific awareness, Tier-II STA-B: diploma or B.Sc. level subject topics per post code. Weight your revision towards the ones you are weakest on and confirm the emphasis against the paper analysis for recent cycles.
Every General Science question on this site is free and written to the exam pattern. Use the topic drills for instant-feedback practice, the daily quiz to keep the section warm, and the DRDO CEPTAM-11 (Technical) mock tests to sit it under a real clock with negative marking.