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4A practice exam › Unit A-10

4A A-10: Fundamental Industrial Communication Skills

31 practice questions in this unit. Each practice set pulls 20 at a time, so you keep seeing new questions as you go.

What this unit covers: Sketches and line tracing, common plant diagrams, plant communication systems.

Exam theme: Electrical, controls and communication. Commonly reported share of the 100-question 4A exam: about 2 questions (unofficial; SOPEEC and ABSA do not publish per-unit counts). See the 4A exam breakdown.

2 free 4A A-10 questions, explained

Original exam-style questions written to the public syllabus, from our free public sample. They are not questions from a real exam.

1. A technician reviewing a P&ID notices both cloud shapes and numbered triangles marking different areas of the drawing. What does each type of revision mark indicate?

  • A. The cloud marks all of the changes made since the very first revision, while the numbered triangles mark only the changes made in the most recent revision.
  • B. The cloud marks only the changes in the most recent revision, while the triangles (or circles) accumulate and show every revision made to the diagram.
  • C. Both methods show exactly the same information; the choice between clouds and triangles is purely a matter of the drafter's own preference.
  • D. The cloud indicates a major equipment or piping change, while the triangle indicates only a minor wording or title-block correction.
Show the answer and explanation

Answer: B. The cloud method encloses only the changes from the most recent revision, so older clouds are removed when a new revision is issued. The triangle or circle method is cumulative: previous markers are left in place, so every revision is visible on the diagram simultaneously.

Question ID KE-A10-C02-Q002 · Unit A-10: Fundamental Industrial Communication Skills · Report an error

2. After a work request is submitted and signed off by a shift engineer, it is forwarded to a plant employee whose role is to consider and coordinate all aspects of the job. What is the common job title for this person?

  • A. Maintenance planner
  • B. Shift engineer
  • C. Safety officer
  • D. Plant superintendent
Show the answer and explanation

Answer: A. The maintenance planner is the plant employee who receives work requests, then considers and organizes all aspects of the job, coordinating labour, parts, permits, engineering approvals, and scheduling. The shift engineer approves requests; the safety officer manages safety compliance; the plant superintendent has broader management responsibilities.

Question ID KE-A10-C03-Q011 · Unit A-10: Fundamental Industrial Communication Skills · Report an error

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