ITI Mechanic Auto Body Repair (AITT Theory) case studies
ITI Mechanic Auto Body Repair (AITT Theory) · Put your knowledge to work in context.
The All India Trade Test (AITT) is the national assessment that ITI trainees sit at the end of their trade course, and the Mechanic Auto Body Repair trade theory paper is one component of it; clearing the AITT requirements in full is what leads to the National Trade Certificate. The theory paper asks whether you understand the work you have been doing in the shop - why a panel is straightened with a hammer and dolly rather than a slide hammer, why MIG on 0.8 mm steel needs a particular wire and gas setting, why a basecoat blistered under a topcoat. The ITI Mechanic Auto Body Repair (AITT Theory) case studies are 5 cases and about 4,026 words.
1Pickup Frame Damage: Straighten, Section, or Replace?
A 2019 four-door pickup is towed in after a 40 km/h right-front impact. The right front wheel is visibly set back, the steering wheel is off-centre by about 25 degrees, and the right front door gaps are tight at the top and wide at the bottom.
767 words, about 4 min2Three-Stage Pearl White: Blend Strategy and Mottling Defect
A 2021 sedan finished in three-stage pearl white - white base, mica pearl mid-coat, clear - arrives with a 25 cm crease in the left rear door and a 10 cm scuff on the adjoining rear quarter panel. Both panels carry original factory paint averaging 105 micrometres.
817 words, about 4 min3PP-EPDM Bumper Cover with Radar Behind It: Repair, Used Part, or New?
A 2022 crossover arrives with a rear bumper cover damaged by a low-speed impact. The cover is PP-EPDM, painted metallic silver, and carries a 12 cm crack through the cover near the right wheel arch, one broken upper mounting tab, and a 5 cm scuff.
794 words, about 4 min4Plug-In Hybrid Quarter Panel: HV Safety and Welding Near the Pack
A 2021 plug-in hybrid comes in for replacement of the right rear quarter panel after a sideswipe. The high-voltage battery pack sits under the rear seat, and orange HV cables run along the right rocker and inner quarter.
842 words, about 4 min5Rear-End Supplement, a Welded Hitch, and a Customer Request to Conceal
A 2017 SUV with 128,000 km is in for a rear-end collision. The insurer's initial estimate totals 3,800 credits: replace and refinish the rear bumper cover, repair and refinish the right rear quarter, and replace the right tail lamp.
806 words, about 4 min