CET Reporting Requirements & Standards 3 — Questions and Answers
Question 1: Which FCC regulation part primarily governs unintentional radiators such as digital devices and computers?
- FCC Part 15 (Correct answer)
- FCC Part 97
- FCC Part 68
- FCC Part 22
Correct answer: FCC Part 15
FCC Part 15 sets emission limits for unintentional radiators including computers, switching power supplies, and digital electronics.
Question 2: In a calibration report, what does 'traceability' mean?
- The ability to track equipment shipment
- Linking measurements back to national or international standards through an unbroken chain (Correct answer)
- Recording the technician's travel to the calibration lab
- Logging software version history
Correct answer: Linking measurements back to national or international standards through an unbroken chain
Measurement traceability means calibration results can be linked to NIST or other recognized standards through a documented chain of calibrations.
Question 3: What is the correct sequence for completing a failure report?
- Corrective action → symptom description → root cause
- Symptom description → root cause analysis → corrective action (Correct answer)
- Root cause → customer notification → parts order
- Parts replacement → symptom description → invoice
Correct answer: Symptom description → root cause analysis → corrective action
Proper failure reports follow a logical sequence: document symptoms first, analyze root cause, then define corrective action.
Question 4: Under OSHA 29 CFR 1910.303, what must be documented when working on electrical panels above 50V?
- Only the panel brand and model
- Lockout/Tagout procedures and energy control records (Correct answer)
- Employee break schedules
- Equipment paint color codes
Correct answer: Lockout/Tagout procedures and energy control records
OSHA's electrical safety standards require documented LOTO (Lockout/Tagout) procedures and energy control records for hazardous energy sources.
Question 5: Which of the following BEST describes a 'revision' in technical documentation?
- A complete replacement of all documents
- An authorized change to a document that is tracked with a new version identifier (Correct answer)
- A verbal agreement to change a procedure
- Deleting old files from a server
Correct answer: An authorized change to a document that is tracked with a new version identifier
A document revision is a controlled, authorized change tracked with a new version number or letter to maintain document history.
Question 6: A technician tests a power supply and finds output voltage is within tolerance. How should this result be recorded?
- Pass — no further documentation needed
- Measured value, specification limits, pass/fail result, and date/technician signature (Correct answer)
- Only the pass result in a verbal log
- A customer email stating the unit works
Correct answer: Measured value, specification limits, pass/fail result, and date/technician signature
Test records must include measured values, specification limits, pass/fail determination, date, and technician identification for traceability.
Question 7: What does the term 'Mean Time Between Failures' (MTBF) represent in electronics reliability reporting?
- The time it takes to repair a failed component
- The average operating time between repairable failures of a system (Correct answer)
- The warranty period specified by the manufacturer
- The maximum temperature before failure
Correct answer: The average operating time between repairable failures of a system
MTBF is a reliability metric representing the average time a system operates between failures, used to predict reliability and schedule maintenance.
CET Reporting Requirements & Standards 3
Which FCC regulation part primarily governs unintentional radiators such as digital devices and computers?