Crane Operator Certification Exam Prep · Question
During a monthly inspection, a crane operator notes evidence of severe abrasion on a section of the hoist rope. What is the criterion for retiring a wire rope due to abrasion, according to CSA Z150?
CSA Z150, Clause 5.2.2.1 (e) and (f), specifies that a wire rope, whether standing or running, shall be retired if there is excessive abrasion, which is defined
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Question: During a monthly inspection, a crane operator notes evidence of severe abrasion on a section of the hoist rope. What is the criterion for retiring a wire rope due to abrasion, according to CSA Z150?
Answer options:
- When the outer wires wear to one-third of their original diameter. ✅ When the outer wires wear to half of their original diameter.
- When the outer wires show any sign of abrasion.
- When the outer wires wear to two-thirds of their original diameter.
Correct answer: When the outer wires wear to half of their original diameter.
Explanation: CSA Z150, Clause 5.2.2.1 (e) and (f), specifies that a wire rope, whether standing or running, shall be retired if there is excessive abrasion, which is defined as when the outer wire wear exceeds one-half of the original outer wire diameter. This reduction in diameter significantly decreases the metallic area and capacity of the rope, making it unsafe for continued use and necessitating immediate replacement.
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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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