Automotive Servicing NC III study guide
Automotive Servicing NC III · Work through your exam, one topic at a time.
Automotive Servicing NC III is a Philippine TVET competency credential for people who service light vehicles at a level beyond routine maintenance: diagnosing faults, repairing engine mechanical systems on gasoline and diesel units, overhauling brakes, steering, suspension, and drivetrain components, and documenting work to shop standards. It suits working mechanics, fleet and casa technicians, vocational graduates, and OFWs who need a portable, competency-based qualification recognized by Philippine employers and assessed against industry standards. The Automotive Servicing NC III study guide has 9 sections and about 2,927 words.
01Safety Practices and Environmental Protection in Automotive Servicing
This domain checks whether you can recognize shop hazards, select the right personal protective equipment (PPE), handle fuels and chemicals safely, and keep wastes out of drains and soil. Expect questions on emergency response, waste segregation, and safe vehicle lifting.
364 words, about 2 min02Use and Maintenance of Hand Tools, Power Tools, and Shop Equipment
This domain tests correct tool selection, safe use, care, and calibration. Questions often involve torque wrenches, micrometers, vernier calipers, feeler gauges, hydraulic presses, tire changers, and wheel balancers.
348 words, about 2 min03Perform Mensuration and Calculation
This domain covers measurement, unit conversion, and automotive calculations such as clearance, engine displacement, compression ratio, and torque. The exam expects correct units, sensible rounding, and formulas applied to real shop values.
329 words, about 2 min04Interpret Technical Drawings, Specifications, and Service Manuals
This domain checks your ability to read orthographic views, dimensions and tolerances, electrical schematics, and service-manual procedures. Expect questions on symbols, fits, torque specifications, wiring diagrams, and using the VIN to select the correct procedure.
324 words, about 2 min05Diagnose and Troubleshoot Automotive Engine and Electrical/Electronic System Faults
This domain tests systematic diagnosis: verifying the complaint, retrieving diagnostic trouble codes (DTCs), reading scan-tool data, and testing circuits with a digital multimeter. Expect no-start, misfire, charging, and sensor-circuit scenarios.
337 words, about 2 min06Service and Repair Engine Mechanical Systems (Gasoline and Diesel)
This domain covers engine disassembly, measurement, reassembly, timing, and torque procedures for both gasoline and diesel engines. Expect cylinder-head, valve, piston, ring, and bearing checks.
312 words, about 2 min07Service and Repair Chassis, Suspension, Steering, and Brake Systems
This domain covers inspection and repair of suspension, steering, wheel alignment, and brakes, including ABS. Expect questions on tire wear patterns, joint play, alignment angles, brake hydraulics, and bleeding.
309 words, about 2 min08Service and Repair Transmission, Drivetrain, and Final Drive Systems
This domain covers clutches, manual and automatic transmissions, CVTs, driveshafts, CV joints, differentials, and final drive ratios. Expect fluid checks, mechanical diagnosis, and ratio calculations.
314 words, about 2 min09Automotive Servicing Documentation, Quality Control, and Customer Service
This domain covers repair orders, job documentation, quality-control checks, and customer communication. Expect questions on accurate complaint-cause-correction writing, authorization, parts handling, and final inspection.
290 words, about 1 min