🔍 Key Concepts

• Standard lifeline tug signals used for enclosed-space entry and diving operations • Difference between signals for “OK / I’m fine” and “I need help / emergency” • Why emergency signals use a pattern that is unlikely to be confused with routine communication

💭 Think About

• Think about what signal a lifeline attendant must notice immediately as abnormal compared to routine status checks. • Which number of tugs is commonly used for regular communications such as ‘stop’, ‘go ahead’, or ‘pay out line’, and which pattern would be reserved for an emergency? • If you were the person on the surface, which tug pattern would be clearly distinct so you would react at once?

✅ Before You Answer

• Make sure you can recall the full basic lifeline tug code: 1 tug, 2 tugs, 3 tugs, etc., and what each means. • Confirm which signal is taught as the unmistakable distress/emergency tug pattern in tank-entry or diving procedures. • Eliminate any option that is commonly used for routine status or movement commands, not emergencies.