Crane Operator Certification Exam Prep · Question
Before extending outriggers on a mobile crane, what is the primary consideration to ensure stability according to CSA Z150?
CSA Z150, Section 5.3.1.2, emphasizes that the ground's bearing capacity must be adequate to support the crane, the load, and any counterweight. This is paramou
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Question: Before extending outriggers on a mobile crane, what is the primary consideration to ensure stability according to CSA Z150?
Answer options:
- Ensuring the ground is perfectly level to within 0.5 degrees. ✅ Confirming the ground's bearing capacity is adequate for the imposed loads.
- Placing dunnage larger than the outrigger pads.
- Verifying that the outrigger pins are fully engaged.
Correct answer: Confirming the ground's bearing capacity is adequate for the imposed loads.
Explanation: CSA Z150, Section 5.3.1.2, emphasizes that the ground's bearing capacity must be adequate to support the crane, the load, and any counterweight. This is paramount to prevent sudden ground failure and crane instability.
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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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