Crane Operator Certification Exam Prep · Question
During a critical lift where the crane is operating near its capacity limit, the operator notices a slight deflection in the ground under one outrigger mat. What immediate action should be taken?
Any visible deflection or instability in the ground under the outriggers indicates a potential ground failure, which can lead to crane tipping or structural dam
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Question: During a critical lift where the crane is operating near its capacity limit, the operator notices a slight deflection in the ground under one outrigger mat. What immediate action should be taken?
Answer options:
- Wait to see if the deflection stabilizes before taking action.
- Increase the engine RPM to maintain hydraulic pressure. ✅ Stop the lift, secure the load if possible, and re-evaluate ground conditions.
- Shift the counterweight to the opposite side to balance the load.
Correct answer: Stop the lift, secure the load if possible, and re-evaluate ground conditions.
Explanation: Any visible deflection or instability in the ground under the outriggers indicates a potential ground failure, which can lead to crane tipping or structural damage. The lift must be stopped immediately to prevent a serious incident.
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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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