Module 7 sur 10 180m 180 min 10 exam Qs 10 exam questions covered
Signals & Communication
Signal person qualifications, standard hand signals for hoist, lower, stop, emergency stop, swing, and communication protocols.
- Describe the signal person role and qualification requirements
- Identify standard hand signals for common crane operations
- Explain barricading requirements and swing radius safety
Leçon 1
Signal Person Role & Qualifications
When a Signal Person Is Required
A signal person is required whenever the crane operator cannot see the load, the landing area, or the path of travel. Canadian regulations require a signal person when:
- The operator's view is obstructed by structures, equipment, or terrain
- The load is moving into an area the operator cannot observe directly
- Site conditions or the lift plan require one
- Working near hazards such as power lines or occupied areas
Qualified
Must Know Standard Signals
1 Person
Only One Signals at a Time
Anyone
Can Give Emergency Stop
Qualification Requirements
A qualified signal person must:
- Demonstrate knowledge of all standard hand signals
- Maintain clear line of sight to the operator and the load
- Wear high-visibility clothing
- Be free from other duties during signaling
- Understand the operations being directed
Operator-Signal Person Relationship
The operator must:
- Follow signals from only the designated signal person
- Stop all movement if any signal is unclear
- Obey a stop signal from anyone on site
- Not resume operations until communication is re-established after any interruption
Key Exam Rule
Only one signal person directs the crane at a time, but anyone can give a stop signal. The operator must obey a stop from any person immediately.
Key Takeaway
A signal person is required when the operator cannot see the load or landing area. Only one qualified signal person directs the crane at a time, but anyone on site can signal an emergency stop and the operator must comply immediately.