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Practice questions · 310S A

Performs common occupational skills

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

7% of the exam

1

Where can a technician or shop owner find the complete, official EPA lists of regulated hazardous wastes?

  1. In the owner's manual of every new vehicle sold.
  2. In the Code of Federal Regulations (CFR), specifically Title 40.Answer
  3. On posters that are included with new tool purchases.
  4. In local newspaper advertisements from the EPA.

Why that is right

The EPA's hazardous waste lists and regulations are federal law, published in the Code of Federal Regulations (CFR), Title 40. That is the complete, official source a shop consults to determine what wastes are regulated.

Why the other options are wrong

  • In the owner's manual of every new vehicle sold. — Vehicle owner's manuals cover operation and maintenance of that car, not the EPA's official hazardous waste regulations.
  • On posters that are included with new tool purchases. — Tool-purchase posters are marketing or general safety notices, not the authoritative federal list of regulated wastes.
  • In local newspaper advertisements from the EPA. — Newspaper advertisements are not an official or complete legal source; the binding regulations reside in the CFR.

2

What is the first step in using a spiral flute stud extractor (easy-out) to remove a bolt broken off flush with the surface?

  1. Drill a hole completely through the broken bolt.
  2. Heat the surrounding area cherry red with a torch.
  3. File the top surface flat and center-punch the exact center of the broken bolt.Answer
  4. Tap the extractor firmly into the broken bolt with a hammer.

Why that is right

The first step is to file the broken face flat and center-punch its exact center; the punch mark keeps the drill from wandering so the pilot hole is drilled dead-center and does not damage the surrounding female threads.

Why the other options are wrong

  • Drill a hole completely through the broken bolt. — Drilling completely through the bolt is unnecessary and can make extraction harder; only a hole of the depth specified by the extractor is needed, and this comes after center-punching anyway.
  • Heat the surrounding area cherry red with a torch. — Heating cherry red is a separate loosening technique, not the first step of extractor use, and excess heat can damage surrounding parts and harden the bolt, making it harder to drill.
  • Tap the extractor firmly into the broken bolt with a hammer. — Tapping the extractor into the bolt happens only after the correct-size hole has been drilled, so it cannot be the first step.

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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