The Boom Angel Indicator is a device required to lift personnel.

• A. True
• B. False
• C. Not required for some cranes
• D. Optional

Answer: (A)

The main idea here is that knowing the exact boom angle is essential for safe lifting, especially when people are involved. A boom angle indicator shows the angle of the crane’s boom in real time, and that angle directly affects how much weight the crane can safely lift at that reach. When lifting personnel, the load isn’t just equipment—it’s a person in a platform, which means the risk is higher if the angle or reach pushes the crane toward its limits. By providing the precise angle, the indicator lets the operator determine the correct, safe configuration and confirm the lift is within the crane’s rated capacity for that angle and radius. Because of this safety-critical role, the device is required for personnel lifts, not optional or only sometimes needed.