Free WAEC GCE Auto Mechanics 3 2025 (Practical)-Answers

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Free WAEC GCE Auto Mechanics 3 2025 (Practical) Questions and Answers | Monday, 10th November, 2025

Free WAEC GCE Auto Mechanics 3 2025 (Practical)- Answers

The  WAEC GCE Auto Mechanics 3 2025(Practical) exam is one of the most skill-based papers in the General Certificate Examination, and many candidates are eager to find free WAEC GCE Auto Mechanics 3 (Practical) questions and answers to aid their final preparation.

This paper is designed to evaluate a candidate’s hands-on knowledge, technical skills, and understanding of automobile systems, ranging from the engine, clutch, brake, and transmission systems to basic electrical components.

In this comprehensive guide, you’ll find everything you need to know about the 2025 WAEC GCE Auto Mechanics 3 (Practical) exam — including the full timetable, question structure, sample answers, and expert tips that can help you score distinction.

WAEC GCE Auto Mechanics 3 2025 (Practical) Timetable

Here’s the official schedule for the 2025 WAEC GCE Auto Mechanics 3 (Practical) examination:

  • Auto Mechanics 3 (Practical) – 2hrs – (1st Set)
    Time: 08:30 hrs – 10:30 hrs

  • Auto Mechanics 3 (Practical) – 2hrs – (2nd Set)
    Time: 11:00 hrs – 13:00 hrs

Date: Monday, 10th November, 2025

Candidates are required to appear only for their designated set — either the 1st Set (Morning) or 2nd Set (Midday). It’s advisable to arrive at least 30 minutes before your scheduled session to ensure smooth verification and setup.

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Overview of the WAEC GCE Auto Mechanics 3 2025(Practical) Exam

The WAEC GCE Auto Mechanics 3 2025 (Practical) is designed to assess practical competence in diagnosing, maintaining, and repairing automobile systems. It emphasizes precision, safety, and technical understanding.

Students are expected to demonstrate practical knowledge of:

  • Engine maintenance and troubleshooting

  • Clutch, gear, and transmission systems

  • Brake and steering mechanisms

  • Vehicle electrical systems

  • Workshop safety and tool handling

Each task must be completed accurately, demonstrating both skill and theory application.

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Structure of the Exam

The paper typically consists of three compulsory practical questions, each assessing a different aspect of automobile mechanics.

Section A – Engine System

Candidates might be required to:

  • Identify engine parts and explain their functions.

  • Demonstrate how to check and adjust valve clearance.

  • Perform simple engine maintenance procedures like oil change or spark plug inspection.

Section B – Electrical System

Tasks may involve:

  • Testing a car battery using a hydrometer.

  • Diagnosing electrical faults using a multimeter.

  • Connecting lighting or ignition circuits correctly.

Section C – Brake or Transmission System

Candidates may need to:

  • Adjust a mechanical brake system.

  • Bleed a hydraulic brake line.

  • Identify faults in clutch or gearbox assemblies.

Each task will be followed by questions requiring written explanations, diagrams, or calculations.

Likely WAEC GCE Auto Mechanics 3 2025 (Practical) Questions and Answers

Here are sample 2025 WAEC GCE Auto Mechanics 3 (Practical) questions and answers based on past patterns and syllabus coverage.

Question 1:

Identify the tools and steps used in adjusting the valve clearance of a four-stroke petrol engine.

Sample Answer:
Tools Required: Feeler gauge, spanner set, screwdriver, and clean rag.
Steps:

  1. Warm the engine slightly and switch it off.

  2. Remove the valve cover.

  3. Rotate the crankshaft until the piston of the cylinder being checked is at top dead center (TDC).

  4. Insert the feeler gauge between the rocker arm and valve stem.

  5. Loosen the lock nut and adjust the clearance to manufacturer’s specification.

  6. Tighten the lock nut and replace the valve cover.

Question 2:

Describe the procedure for testing a 12V car battery using a hydrometer.

Sample Answer:

  1. Remove cell caps and insert the hydrometer into each cell.

  2. Draw electrolyte into the hydrometer and note the specific gravity reading.

  3. A reading between 1.250–1.280 indicates a fully charged battery.

  4. If readings differ widely across cells, the battery is defective.

  5. Record all readings and ensure proper ventilation during the test.

Question 3:

Explain how to bleed the hydraulic brake system of a vehicle.

Sample Answer:

  1. Fill the master cylinder reservoir with brake fluid.

  2. Attach a transparent hose to the bleeder valve on the brake caliper or wheel cylinder.

  3. Have an assistant press the brake pedal repeatedly and hold it down.

  4. Open the bleeder valve to allow air and fluid to escape.

  5. Close the valve before releasing the pedal.

  6. Repeat until only clean fluid (no air bubbles) exits the hose.

  7. Refill fluid and ensure all valves are tight.

Question 4:

List four safety precautions to observe when working in an automobile workshop.

Sample Answer:

  1. Always wear protective gear (goggles, gloves, safety boots).

  2. Ensure the engine is off before starting any repair.

  3. Avoid smoking near fuel or electrical components.

  4. Keep the workshop clean and tools organized to prevent accidents.

Key Areas to Focus On for theWAEC GCE Auto Mechanics 3 2025 (Practical)

  1. Engine Systems: Components, lubrication, cooling, and firing order.

  2. Electrical Systems: Battery, starter motor, alternator, and wiring.

  3. Transmission: Gearbox, clutch, differential, and drive shaft.

  4. Brake System: Types (mechanical/hydraulic), maintenance, and fault detection.

  5. Suspension and Steering: Types, function, and alignment.

  6. Safety Rules and Tools: Proper use and maintenance of automotive tools.

Study Tips for the WAEC GCE Auto Mechanics 3 2025 (Practical)

  1. Know Your Tools: Learn the names, uses, and maintenance of automotive tools.

  2. Understand Systems, Don’t Memorize: Be able to describe how systems work.

  3. Practice Diagrams: Label diagrams clearly during your exam.

  4. Use Past Questions: Many practical questions are repeated yearly.

  5. Be Neat and Precise: Examiners value clarity, labeling, and logical arrangement.

  6. Follow Safety Procedures: Never compromise workshop safety.

  7. Read Manufacturer Manuals: Gain insight into standard procedures and torque settings.

Common Mistakes to Avoid

  • Mixing up system parts (e.g., confusing clutch and brake components).

  • Incorrect tool usage during demonstration.

  • Skipping safety steps in procedures.

  • Poor diagram labeling and untidy handwriting.

  • Failing to explain the purpose of each procedure.

Avoiding these errors ensures higher marks, especially in demonstration-based tasks.

Why the Practical Paper Matters

The Auto Mechanics 3 (Practical) paper carries significant marks — usually 40% of the total score. Performing well can elevate your overall grade, even if your theory score is moderate.

Examiners look for accuracy, completeness, neat presentation, and adherence to safety and procedural standards.

WAEC GCE Auto Mechanics 3 2025 (Practical): How to Pass Easily

To pass the WAEC GCE Auto Mechanics 3 2025(Practical) exam with distinction:

 Master your workshop tools and their applications.
 Understand fault diagnosis and repair methods.
 Study previous WAEC practical questions.
 Arrive early for setup and mental readiness.
 Follow instructions carefully during the exam.

Sample Practical Scenario

Task: Identify faults in an ignition system that prevents the engine from starting.

Possible Answers:

  • Weak or discharged battery.

  • Loose wiring connections.

  • Faulty ignition coil or spark plug.

  • Damaged distributor cap.

  • Fuel supply interruption.

Candidates should demonstrate each check step-by-step, explaining what they are observing and how to fix detected faults.

Final Preparation Tips

  • Review WAEC past practical papers from the last 5 years.

  • Prepare diagrams for systems like the engine block, transmission, and brake layout.

  • Familiarize yourself with automotive measuring instruments.

  • Manage time properly during the 2-hour session.

The WAEC GCE Auto Mechanics 3 2025 (Practical) Questions and Answers demand a calm, focused approach — understand, apply, and demonstrate skill confidently.

Conclusion

The WAEC GCE Auto Mechanics 3 2025(Practical) paper is all about skill, precision, and understanding. With consistent practice, sound preparation, and adherence to safety procedures, you can excel easily.

Use this guide as your blueprint for success — covering key topics, likely questions, and tested techniques that guarantee distinction. Stay calm, work confidently, and remember: preparation is the engine of success.

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