APSC WRD Assistant Engineer Mechanical Exam 2025: Syllabus and Tips
Are you preparing for the upcoming Assistant Engineer (Mechanical) 2025 examination under the Water Resources Department conducted by the Assam Public Service Commission (APSC)? If yes, you are just in the right place! This comprehensive guide to the detailed syllabus for the APSC Assistant Engineer (Mechanical) exam, as mentioned in Advertisement No. 15/2025, dated April 1, 2025. We will give you all the important topics, provide you with some insightful tips, and help you in preparing for the upcoming competitive exam.
Stages of APSC Assistant Engineer (Mechanical) Exam 2025
The APSC Assistant Engineer (Mechanical) Examination under Water Resources Department will comprise of 2 stages. The first is an OMR-based, multiple-choice question (MCQ) test, that is a preliminary test to assess candidates’ technical knowledge and general aptitude. This stage is again divided into two papers:
- Paper I: Mechanical Engineering (Bachelor’s Degree Standard)
Marks: 100 | Duration: 2 hours - Paper II: General Studies & General English
Marks: 100 | Duration: 2 hours
With a total of 200 marks, this exam tests both your technical expertise in mechanical engineering and your general knowledge and language skills. Let us find out what the syllabus for the AE Mechanical WRD 2025 examination is.
PAPER – I: Mechanical Engineering (Bachelor Degree Level)
Type: MCQ
Marks: 100
Time: 2 Hours
- Engineering Mechanics
Equilibrium of rigid bodies, FBDs, force systems
Structures: method of joints/sections
Friction (dry, wedge, ladder)
Centre of Gravity & Moment of Inertia
Lifting Machines, Virtual Work
Impulse, momentum, work and energy - Electrical Technology
DC machines (generator, motor, losses, efficiency, characteristics)
Transformers (ideal theory, phasor diagram, tests, regulation, autotransformer)
Induction motors (3-phase, 1-phase, torque, starting methods)
Synchronous machines (alternator, motor, excitation, application)
Measuring instruments (wattmeter, energy meter) - Thermodynamics
System, properties, processes, laws of thermodynamics
Internal energy, entropy, Carnot cycle
Steam properties, Rankine cycle, use of Mollier charts
Air standard cycles (Otto, Diesel)
SI/CI engines, fuel combustion, calorimetry, Orsat apparatus - Theory of Machines
Simple mechanisms (crank, four-bar)
Governors (Watt, Porter, Hartnell, stability)
Cams and followers, displacement diagrams
Friction: clutches, brakes, belts, dynamometers
Flywheels & turning moment diagrams
Gears & gear trains (simple, compound, epicyclic) - Fluid Mechanics
Fluid properties, pressure measurement
Fluid statics (forces on submerged bodies, buoyancy)
Kinematics (streamlines, pathlines, vortex)
Dynamics: Bernoulli, Euler, momentum equation
Flow measurement: venturimeter, orificemeter, Pitot tube
Dimensional analysis, Reynolds number, pipe flow losses - Mechanics of Materials
Complex stress-strain, Mohr’s circle
Principal stress/strain, strain rosette
Combined stresses (bending + torsion)
Curved beams, springs - Heat Transfer
Conduction (1D, unsteady, fins), boundary conditions
Radiation (laws, shape factors, grey bodies)
Convection & radiation combined
Diffusion (Fick’s Law, mass transfer, molecular diffusion) - Industrial Engineering & Management
Organization structure, plant layout
Network analysis (CPM, PERT, crashing)
Work study (motion study, therbligs, stopwatch method)
Product design & value analysis
Production planning, inventory control (EOQ, ABC)
Maintenance (TPM), Quality control, TQM - Air Conditioning
Psychrometry, charts, processes (humidification, mixing)
Comfort air conditioning (comfort indices, load analysis)
Duct design, air distribution
A/C systems (residential, commercial, industrial)
Equipment (fans, filters, cooling towers, dehumidifiers)
Controls (thermostats, dampers, pneumatic systems)
PAPER – II: General Studies & General English
Type: MCQ
Marks: 100
Time: 2 Hours
- Current Affairs (India & Assam)
- Indian History & Freedom Movement
- Assam History
- Geography (India & Assam)
- Indian Polity & Constitution
- Sports, Books, Authors, Important Personalities of Assam
- Economy (India & Assam)
- Assam Environment
- General Mental Ability
- Literature, Culture, and Festivals of Assam & North East
- English Grammar
How to Prepare for the APSC Assistant Engineer (Mechanical) Exam
Preparing for a competitive exam like the APSC Assistant Engineer test requires a strategic approach. Here are some actionable tips to help you succeed:
1. Understand the Syllabus Thoroughly
- Download and print the official syllabus (Advertisement No. 15/2025) from the APSC website.
- Break down each topic into subtopics and create a checklist to track your progress.
2. Create a Study Schedule
- Allocate specific hours daily for Paper I (Mechanical Engineering) and Paper II (General Studies & English).
- Dedicate more time to weaker areas, such as fluid mechanics or current affairs, depending on your strengths.
3. Use Quality Study Materials
- Mechanical Engineering:
- Fluid Mechanics: “Fluid Mechanics” by R.K. Bansal or “Introduction to Fluid Mechanics” by Fox and McDonald.
- Work Measurement: “Work Systems” by Mikell P. Groover.
- Product Design: “Product Design and Development” by Karl T. Ulrich and Steven D. Eppinger.
- General Studies:
- NCERT books for history, geography, and polity.
- Lucent’s General Knowledge for quick revision.
- General English:
- “Objective General English” by S.P. Bakshi.
- Practice comprehension and essays from previous years’ question papers.
4. Practice with Mock Tests
- Solve previous years’ APSC question papers to understand the exam pattern.
- Take online mock tests to improve time management and accuracy for the OMR-based format.
5. Stay Updated and Healthy
- Read daily news for current affairs, focusing on Assam-specific developments.
- Maintain a healthy routine with proper sleep, exercise, and nutrition to stay focused.
Why Choose a Career as an Assistant Engineer in the Water Resources Department?
Working as an Assistant Engineer (Mechanical) in the Water Resources Department offers a unique opportunity to contribute to critical infrastructure projects like irrigation systems, flood control, and water management in Assam. This role combines technical expertise with societal impact, making it both challenging and rewarding. Plus, a government job with APSC comes with job security, benefits, and opportunities for growth.
Final Words
The APSC Assistant Engineer (Mechanical) Screening Test 2025 is your gateway to a fulfilling career in the Water Resources Department. By mastering the syllabus for Mechanical Engineering and General Studies & General English, and following a disciplined preparation strategy, you can boost your chances of success. Start early, stay consistent, and approach the exam with confidence.
Best of luck, future engineers!
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Link to Official Syllabus: SEE HERE