Crane Operator Certification Exam Prep · Question
What is the primary hazard addressed by an Anti-Two-Block (ATB) device?
An ATB device is a safety feature designed to prevent the load block from contacting the boom tip, which could cause wire rope damage and boom failure.
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Question: What is the primary hazard addressed by an Anti-Two-Block (ATB) device?
Answer options:
- Preventing the crane from tipping over.
- Detecting sudden changes in load weight. ✅ Warning and/or limiting hoistup movement when the load block approaches the boom tip.
- Monitoring the crane's engine temperature.
Correct answer: Warning and/or limiting hoistup movement when the load block approaches the boom tip.
Explanation: An ATB device is a safety feature designed to prevent the load block from contacting the boom tip, which could cause wire rope damage and boom failure.
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Question explanations
- According to most Canadian provincial regulations, who is ultimately responsible for the safe operation of a c
- A crane's rated capacity decreases as the load radius:
- What is the minimum number of full wraps of wire rope that must remain on a hoist drum when the hook is in its
- Before setting up a mobile crane, what is the most important factor to assess regarding ground conditions?
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