NABTEB Motor Vehicle Mechanics case studies
NABTEB Motor Vehicle Mechanics · Put your knowledge to work in context.
NABTEB Motor Vehicle Mechanics is a trade subject in the National Business and Technical Examinations Board (NABTEB) craft-level certification route, taken by candidates in technical colleges, apprenticeship centres and vocational training institutions in Nigeria. It is designed for people who intend to earn a living diagnosing, servicing and repairing cars, light commercial vehicles and workshop equipment - not for hobbyists. The NABTEB Motor Vehicle Mechanics case studies are 5 cases and about 4,207 words.
1Bore Assessment on a Seized Four-Cylinder Block
A 1.6-litre four-cylinder petrol engine is stripped on the bench after the No. 3 piston seized following a coolant loss.
808 words, about 4 min2Battery Flat Every Second Morning
A 2015 four-door saloon, 12 V system, 70 Ah battery. The owner reports that every second morning the engine cranks slowly or not at all; a jump start gets it going and it then runs normally all day.
886 words, about 4 min3Pulsating Brakes and a Pull to the Right
A light commercial van with front discs and rear drums comes in with a pulsating brake pedal, a steering wheel that shakes when braking from 80 km/h, and a pull to the right whenever the brakes are applied. New front discs and pads were fitted 18 months ago.
856 words, about 4 min4Gearbox Whine in Every Gear but Fourth
A rear-wheel-drive light truck with a five-speed manual gearbox and a live rear axle develops a whine that rises and falls with road speed. The driver reports it in 1st, 2nd, 3rd and 5th but not in 4th, and says it is present even when the truck is standing still in neutral with the clutch pedal released; it stops as soon as the pedal is pressed.
796 words, about 4 min5Inner-Shoulder Tyre Wear and a Thrust Angle Problem
A front-wheel-drive hatchback, two years old, 28,000 km, is in for a four-wheel alignment check. Both front tyres are badly worn on the inner shoulders with a feathered, sawtooth tread pattern; the rear tyres are worn evenly.
861 words, about 4 min