RAC Servicing (DomRAC) NC II study materials
RAC Servicing (DomRAC) NC II study resources

RAC Servicing (DomRAC) NC II: Basic Competencies: Workplace Communication, Teamwork, Safety and Quality Standards

RAC Servicing (DomRAC) NC II · Work through your exam, one topic at a time.

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Basic Competencies: Workplace Communication, Teamwork, Safety and Quality Standards

Scope

This domain covers the basic competencies assessed alongside the technical units: participating in workplace communication, working in a team, practising occupational health and safety, and applying quality standards. Assessors usually observe these behaviours during the practical test, so marks come from what you actually do - tag-out, toolbox talk, waste segregation, sign-off - not from reciting definitions.

Communication that is assessed

  • Receive the job order and confirm unit model, serial number, complaint and scope before touching anything.
  • Use three-way communication when isolating a breaker: you state the circuit, the person repeats it, you confirm.
  • Log readings as they are taken; a figure recalled at day's end is not evidence.
  • Escalate rather than improvise: a leaking circuit in an occupied room, damaged wiring, or a customer refusing access are all reportable.

Teamwork and safety

Two-person jobs - lifting a 1.5 HP condensing unit, brazing with a fire watch, nitrogen pressure testing - need named roles. Apply the hierarchy of controls before reaching for PPE: eliminate, substitute, engineer, administer, then protect. Lockout/tagout, insulated tools, gloves and eye protection, and a 4:1 ladder angle with three points of contact are baseline.

Quality standards

Workmanship follows the manufacturer's installation manual. The customer signs the service report only after leak test, evacuation and performance readings are recorded. 5S housekeeping and segregation of used oil, recovered refrigerant and electronic waste form part of the quality criterion.

Worked example

You must braze a joint in a small room with the customer present. Elimination: can the assembly be pre-fabricated outdoors? If not, engineering controls - open windows, fan, welding blanket, charged extinguisher within reach. Administration: fire watch for 30 minutes after last hot work, occupants notified. PPE: goggles, gloves, flame-retardant sleeves. Only then light the torch.

Traps

Answering "wear PPE" as the first control; energising before tag-out; signing the job order before the standing vacuum test; leaving recovered refrigerant in an unlabelled container.