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Practice questions · 310B C

Repairs non-structural outer body panels and related components

2 questions from this exam area, each with the full explanation shown — not just the answer. Free, no account.

20% of the exam

1

A door glass with a plastic edge retainer is being installed. After the glass is in the frame and bolted to the regulator, how is the retainer seated in the run channel?

  1. Tap the top edge of the glass with a rubber mallet, working along the edge until the retainer drops into the channel
  2. Run the window up under motor power until the retainer clicks into the run channel by itself
  3. Pull the glass straight back toward the rear of the vehicle with firm, square hand pressure, never at an angleAnswer
  4. Apply urethane to the retainer and let it cure in place

Why that is right

The retainer snaps into the run channel when the glass is pulled rearward; it can take considerable effort, so the push must be straight. Pushing at an angle concentrates the load on one corner of the tempered glass and can break it.

Why the other options are wrong

  • A. Hammering any edge of tempered glass, even with a mallet, risks dicing the pane.
  • B. Motor force is applied in the wrong direction (up) and cannot seat a rearward-engaging retainer; stalling the motor can also strip the regulator.
  • D. The retainer is a mechanical snap fit; adhesive would glue the glass in the channel and prevent later service.

2

After an emblem and its double-sided tape have been removed, a ridge of foam-tape residue is left on the painted panel. What is the first tool to try for removing it?

  1. A rubber eraser wheel in an air drillAnswer
  2. A P80 disc on an angle grinder
  3. A steel scraper held flat to the paint
  4. A wire wheel on a bench grinder

Why that is right

The spinning rubber eraser wheel warms, abrades and lifts tape and decal residue without cutting into the paint. Run it at low speed with light pressure and keep it moving. Any film left behind is wiped off with wax and grease remover.

Why the other options are wrong

  • B. A P80 disc cuts through clearcoat and colour in seconds and creates a refinish job.
  • C. A steel scraper scratches the clearcoat; scrapers are for separating bonded panels, not cleaning paint.
  • D. A wire wheel strips paint and is not for use on a finished panel.

Exam-style practice written to the published Red Seal standard. These are not real exam questions — the official Red Seal sample questions are deliberately excluded from everything we publish.

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