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G0B07

ELECTRICAL AND RF SAFETY · - Station safety: electrical shock, grounding, fusing, interlocks, and wiring; antenna and tower safety

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Which of these choices should be observed when climbing a tower using a safety harness?

  1. AAlways hold on to the tower with one hand
  2. BConfirm that the harness is rated for the weight of the climber and that it is within its allowable service life
  3. CEnsure that all heavy tools are securely fastened to the harness
  4. DAll these choices are correct
Why A climbing safety harness is life-support equipment, so before you leave the ground you verify it is rated for your weight (including tools and gear) and that it has not passed the manufacturer's stated service life. Webbing and stitching degrade from UV exposure, moisture, and abrasion, so an old or damaged harness can fail at exactly the moment it is needed. Any harness that has taken a fall or shows cuts, fraying, or corroded hardware should be retired.
Watch out Holding the tower with one hand is good climbing practice but it is not what makes a harness safe, and hanging heavy tools on the harness is actually discouraged since tools should be hauled up separately on a rope, so the choice saying all are correct fails too.
The harness question is about the harness: right weight rating, not past its expiration date.
HamSandwich explanation, first draft. The question and answers are the NCVEC text.
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The rest of G0B

  1. G0B01 Which wire or wires in a four-conductor 240 VAC circuit should be attached to fuses or circuit breakers?
  2. G0B02 According to the National Electrical Code, what is the minimum wire size that may be used safely for wiring w…
  3. G0B03 Which size of fuse or circuit breaker would be appropriate to use with a circuit that uses AWG number 14 wiri…
  4. G0B04 Where should the station's lightning protection ground system be located?
  5. G0B05 Which of the following conditions will cause a ground fault circuit interrupter (GFCI) to disconnect AC power?
  6. G0B06 Which of the following is covered by the National Electrical Code?
  7. G0B07 Which of these choices should be observed when climbing a tower using a safety harness?
  8. G0B08 What should be done before climbing a tower that supports electrically powered devices?
  9. G0B09 Which of the following is true of an emergency generator installation?
  10. G0B10 Which of the following is a danger from lead-tin solder?
  11. G0B11 Which of the following is required for lightning protection ground rods?
  12. G0B12 What is the purpose of a power supply interlock?
  13. G0B13 Where should lightning arrestors be located?
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