Crane Operator Certification Exam Prep · Question
A new operator is told that 'two-blocking is a major hazard.' They are unsure what specific part of the crane's operating system is designed to prevent two-blocking by automatically stopping the hoist up motion. What is this critical safety device?
The Anti-Two-Block (ATB) system is specifically designed to detect when the load block or headache ball is nearing the boom tip and automatically stops the hois
Start free practice for Crane Operator Certification Exam Prep
404 questions · no signup required · 40 free questions per day
Question: A new operator is told that 'two-blocking is a major hazard.' They are unsure what specific part of the crane's operating system is designed to prevent two-blocking by automatically stopping the hoist up motion. What is this critical safety device?
Answer options: ✅ The anti-two-block (ATB) system
- The load moment indicator (LMI)
- The slew limit switch
- The boom angle indicator
Correct answer: The anti-two-block (ATB) system
Explanation: The Anti-Two-Block (ATB) system is specifically designed to detect when the load block or headache ball is nearing the boom tip and automatically stops the hoist-up motion to prevent two-blocking, a critical safety feature.
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.