Crane Operator Certification Exam Prep · Question
When planning a ground-bearing assessment for a mobile crane, which of the following is the most critical factor to consider to ensure stability?
The maximum outrigger reaction force, derived from the crane's load chart for the specific lift configuration, must not exceed the ground's safe bearing capacit
Start free practice for Crane Operator Certification Exam Prep
404 questions · no signup required · 40 free questions per day
Question: When planning a ground-bearing assessment for a mobile crane, which of the following is the most critical factor to consider to ensure stability?
Answer options:
- The colour of the soil.
- The overall length of the outriggers. ✅ The maximum outrigger reaction force in combination with the soil's bearing capacity.
- The number of personnel on site during the lift.
Correct answer: The maximum outrigger reaction force in combination with the soil's bearing capacity.
Explanation: The maximum outrigger reaction force, derived from the crane's load chart for the specific lift configuration, must not exceed the ground's safe bearing capacity to prevent instability. The colour of the soil is not a direct indicator of bearing capacity. While outrigger length is a factor in stability, the primary concern is the force exerted on the ground. Personnel count is a safety factor for the work area, not direct ground bearing.
Start free practice for Crane Operator Certification Exam Prep
404 questions · no signup required · 40 free questions per day
More about Crane Operator Certification Exam Prep
Related Questions
- 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?
- What is the purpose of an anti-two-block device on a crane?
- Why is it important to keep the load as close to the ground as possible when moving it with a crane?
More for Crane Operator Certification Exam Prep candidates
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?
Ready to practice?
Free, no signup required. Build a wrong-question list as you go.
Start Free Crane Operator Certification Exam Prep Practice →Related courses
Other Canadian certifications candidates often prepare for alongside this one.