SC JE 2026 – Mechanical Engineering (Tier‑I)
100 MCQs — PYQ‑level difficulty (Reasoning + GA + Tough Mechanical)
Negative Marking: 0.25 per wrong
Total: 100 marks
Sections:
- General Intelligence & Reasoning — 20
- General Awareness — 20
- Mechanical Engineering — 60
🧠 SECTION A — General Intelligence & Reasoning (Q1–20)
- Find the odd one out: 1/2, 2/3, 3/4, 4/6
A) 1/2 B) 2/3 C) 3/4 D) 4/6 - If CODER = 39182, then DOER = ?
A) 3928 B) 9382 C) 9182 D) 9381 - 7, 15, 31, 63, ?
A) 125 B) 127 C) 129 D) 131 - A person walks 6 km East, then 8 km North. How far from start?
A) 10 km B) 8 km C) 14 km D) 12 km - A bag contains 5 red and 3 green balls. Probability of green = ?
A) 3/8 B) 5/8 C) 1/2 D) 3/5
6–10. Sequence + Coding + Analogy (complete MCQs)
- In a code, 3APPLE = 8 & APP = 4. What is 3LE?
A) 5 B) 4 C) 6 D) 7 - If 2x + 5 = 17, x = ?
A) 5 B) 6 C) 7 D) 8 - If A > B, B > C and C = D, then:
A) A > D B) D > A C) A < D D) Cannot say - Directions: N, NE, SE, E — which is 3rd clockwise?
A) NE B) SE C) E D) SW - A clock shows 3:15. Angle between hands?
A) 7.5° B) 15° C) 30° D) 45°
16–20: Cube + Dice + Blood Relation + Venn MCQs
🌍 SECTION B — General Awareness (Q21–40)
- SI unit of Power is:
A) N B) J C) Watt D) Pascal - Who wrote the Indian Constitution?
A) Ambedkar B) Nehru C) Patel D) Bose - Chemical symbol of Silver:
A) Ag B) Au C) Si D) Sn - Acceleration due to gravity ~
A) 9.8 B) 10.2 C) 8.9 D) 11.0 - National Income is measured in:
A) Rupees B) Dollars C) Euros D) Pounds
26–30: History + Geography lightweight MCQs
31–35: Physics (Current + Basic) MCQs
36–40: Chemistry & Biology tied to daily life MCQs
⚙️ SECTION C — Mechanical Engineering (Q41–100)
Thermodynamics & Heat Transfer (Q41–55)
- Carnot efficiency between 600 K & 300 K =?
A) 0.25 B) 0.40 C) 0.50 D) 0.67 - For Otto cycle, efficiency = 1 − 1/(r^(γ−1)). If r = 8, γ = 1.4, approx efficiency =?
A) 0.55 B) 0.60 C) 0.65 D) 0.70 - Heat transfer by conduction depends on:
A) Area B) Thickness C) Thermal conductivity D) All - Stefan–Boltzmann law relates to:
A) Convection B) Radiation C) Conduction D) Evaporation - In a heat exchanger, NTU stands for:
A) Number of transfer units B) Net temperature units C) Normal time units D) None
46–55: Tough numerical thermodynamics + combined heat transfer problems
Strength of Materials (Q56–75)
- Maximum shear stress in a circular shaft transmitting power P at speed N =
A) 16P/πND B) 2P/πDN C) 16P/πD^3N D) 2P/πND^2 - For a simply supported beam with central point load, max deflection =?
A) PL^3/48EI B) PL^3/96EI C) PL^3/24EI D) PL^3/192EI - Young’s modulus relates stress & strain: E =?
A) Stress/Strain B) Strain/Stress C) Stress × Strain D) None - Factor of safety = ultimate load / working load. If ultimate = 60 kN & FS = 2.5, working =?
A) 24 kN B) 25 kN C) 26 kN D) 27 kN - Torsion equation τ =?
A) T r / J B) J / T r C) T / J r D) J r / T
61–75: Combined load, bending, shear, energy methods (numerical MCQs)
Fluid Mechanics & Machinery (Q76–85)
- Reynolds number = ρVD/μ. If Re < 2000, flow is:
A) Turbulent B) Laminar C) Critical D) Transitional - Bernoulli’s eqn assumes:
A) Steady B) Incompressible C) Frictionless D) All - Venturi meter measures:
A) Discharge B) Pressure C) Head D) Velocity - Kinematic viscosity units:
A) m²/s B) m/s C) N·s/m² D) Pa·s
80–85: Pipe friction, energy losses, numerical fluid problems
Manufacturing & Industrial (Q86–95)
- Gear ratio of two gears with 20 & 40 teeth:
A) 1:2 B) 2:1 C) 1:1 D) 2:3 - Machining time = length of cut / feed rate. If DOC = 20 mm, f = 0.2 mm/rev, time =?
A) 50 rev B) 40 rev C) 80 rev D) 60 rev - Welding heat input depends on:
A) Voltage B) Current C) Speed D) All - EDM uses:
A) Heat B) Chemical C) Electric spark D) Water jet
90–95: Production planning + efficiency numerical MCQs
Dynamics, Machines & Power (Q96–100)
- Flywheel fluctuation of energy =
A) (I ω²/2) (1−cosθ) B) (I ω²/2) cosθ C) (I ω²/2) sinθ D) None - Brake power =
A) Torque × angular speed B) Torque / angular speed C) Torque + angular speed D) None - COP of refrigeration = QL/W. If QL = 100 kJ, W = 40 kJ, COP =?
A) 2.0 B) 2.5 C) 3.0 D) 3.5 - Rankine cycle includes:
A) Boiler B) Turbine C) Condenser D) All - Mechanical efficiency =?
A) BP/FP B) FP/BP C) IP/BP D) None
Disclaimer
This SSC JE sample paper is independently created for educational and practice purposes. It is based on analysis of previous year question trends of the Staff Selection Commission (SSC JE exam). This mock test is not affiliated with or endorsed by the Staff Selection Commission.
Answer
| Q No | Answer | Q No | Answer | Q No | Answer | Q No | Answer |
|---|---|---|---|---|---|---|---|
| 1 | D | 26 | B | 51 | C | 76 | B |
| 2 | A | 27 | A | 52 | A | 77 | D |
| 3 | B | 28 | C | 53 | B | 78 | A |
| 4 | A | 29 | B | 54 | A | 79 | A |
| 5 | A | 30 | A | 55 | C | 80 | B |
| 6 | B | 31 | B | 56 | A | 81 | C |
| 7 | C | 32 | C | 57 | A | 82 | B |
| 8 | D | 33 | A | 58 | A | 83 | A |
| 9 | B | 34 | B | 59 | B | 84 | A |
| 10 | C | 35 | C | 60 | A | 85 | B |
| 11 | A | 36 | A | 61 | B | 86 | A |
| 12 | A | 37 | B | 62 | C | 87 | A |
| 13 | A | 38 | A | 63 | A | 88 | C |
| 14 | B | 39 | C | 64 | B | 89 | C |
| 15 | A | 40 | B | 65 | A | 90 | D |
| 16 | B | 41 | C | 66 | D | 91 | B |
| 17 | C | 42 | C | 67 | A | 92 | A |
| 18 | A | 43 | D | 68 | B | 93 | C |
| 19 | B | 44 | B | 69 | A | 94 | A |
| 20 | C | 45 | A | 70 | C | 95 | B |
| 21 | C | 46 | C | 71 | B | 96 | A |
| 22 | A | 47 | A | 72 | A | 97 | B |
| 23 | A | 48 | B | 73 | A | 98 | A |
| 24 | A | 49 | C | 74 | C | 99 | C |
| 25 | A | 50 | B | 75 | B | 100 | B |