Sample questions
CDS2025
Why do plastics not degrade easily ?
- A They have strong ionic bonds.
- B They have strong covalent bonds.
- C They have strong metallic bonds.
- D They have very high melting points (> 500°C).
Answer key not yet available (pending official release)
Science & Technology › Physics & Chemistry
ESE2025
The long chain molecules are randomly oriented in
- A Plastic
- B Metal
- C Diamond
- D Coal
Answer key not yet available (pending official release)
Engineering › Mechanical
CSE2024
In which of the following are hydrogels used ?
- Controlled drug delivery in patients
- Mobile air-conditioning systems
- Preparation of industrial lubricants
Select the correct answer using the code given below :
- A 1 only ✓
- B 1 and 2 only
- C 2 and 3 only
- D 1, 2 and 3
✓ Correct answer: (A)
Science & Technology › Physics & Chemistry
Study how UPSC repeats — not just the papers
₹199 / 1 year · Founding Member
Full access unlocks the three things no PYQ PDF gives you:
① Cross-exam learning — see the same idea recur across CSE, CAPF, CDS and NDA.
② Topic evolution — how each idea is framed, year by year.
③ Question intelligence — every PYQ + answer, linked to related concepts and similar questions.
e.g. Round Table Conference: CDS 2017 → CSE 2017 → … → CAPF 2024
15 days free, no card required — then ₹199 for 1 year.
Start your 15-day free trial →