Automotive Servicing NC II study guide
Automotive Servicing NC II · Work through your exam, one topic at a time.
Automotive Servicing NC II is a Philippine competency-based qualification for people who service and repair light vehicles - engine, cooling, lubrication, fuel, electrical, brakes, suspension, steering, and drivetrain. It suits entry-level technicians, vocational graduates, and experienced mechanics who want their skills formally assessed rather than trained from scratch. The Automotive Servicing NC II study guide has 8 sections and about 3,119 words.
01Workplace Communication, Safety, and Housekeeping
Domain 1 tests the shop-floor layer of the trade: how a technician receives and documents work, controls hazards, and keeps the bay under 5S. Items typically cover PPE selection, the hierarchy of controls, waste segregation and labelling, fire-extinguisher classes, lockout/tagout, SDS interpretation, and repair-order recording.
412 words, about 2 min02Use of Hand Tools, Measuring Instruments, and Test Equipment
Domain 2 tests whether you can choose the right instrument, verify it, read it correctly and care for it. Expect tool identification, instrument resolution, zero and calibration checks, and correct use of test equipment.
394 words, about 2 min03Engine Mechanical and Cooling System Servicing
Domain 3 covers the mechanical health of the engine and the cooling circuit that keeps it alive: compression and leakage testing, valve clearance and timing, head gasket diagnosis, and cooling system pressure testing. Compression test: engine at operating temperature, all plugs or glow plugs removed, throttle wide open, 4–6 strokes per cylinder; cylinders should be within about 10% of each other.
416 words, about 2 min04Engine Lubrication and Fuel System Servicing
Domain 4 tests lubrication and fuel delivery: choosing and changing oil correctly, reading oil pressure, and diagnosing fuel supply on gasoline injection and diesel systems. Oil grade: the first number (e.g.
382 words, about 2 min05Electrical and Electronic System Servicing (Charging, Starting, Lighting)
Domain 5 tests charging, starting and lighting, plus the battery and circuit testing that support them. Battery: a healthy rested battery reads about 12.6 V open-circuit (2.1 V per cell) and electrolyte SG around 1.265; below 12.4 V it is part-discharged.
349 words, about 2 min06Brake System Servicing
Domain 6 tests hydraulic braking: how pressure is generated, transmitted and released, plus the measurement that decides whether parts are serviceable. Pascal's law: pressure is equal throughout a closed hydraulic system; master cylinder bore and caliper piston area set the force and travel.
400 words, about 2 min07Suspension, Steering, and Wheel Alignment Servicing
Domain 7 covers the geometry and components that keep the tyre contact patch correct: steering linkage, ball joints, springs, struts, bearings, and the four alignment angles. Camber is the inward or outward tilt of the wheel seen from the front; caster is the steering-axis tilt seen from the side, with positive caster giving straight-line stability and self-centring.
360 words, about 2 min08Transmission, Clutch, and Drivetrain Servicing
Domain 8 covers clutch operation, manual and automatic transmission basics, and the drivetrain that delivers torque to the wheels. Clutch pedal free play is typically 15–25 mm; too little keeps the release bearing loaded and the clutch partially disengaged, too much prevents full release and causes gear clash.
406 words, about 2 min