For man-riding crane operations, what named safety device must be fitted to prevent the load block from contacting the boom tip during hoisting?

Q: For man-riding crane operations, what named safety device must be fitted to prevent the load block from contacting the boom tip during hoisting?

An anti-two-block device The anti-two-block device (A2B/ATB) prevents the load block from rising into the boom tip, typically using a weighted ring/chain at the boom tip that trips a limit switch when lifted by the rising block.

Q: What type of harness does COSWP require for working aloft, as opposed to a simple waist belt?

A 5-point full body harness Waist belts concentrate arrest forces on the abdomen and can cause internal injury. A 5-point full body harness distributes forces across shoulders, chest, and thighs.

Q: Before a bosun's chair is used to hoist a person, COSWP requires it to be load tested to what multiple of the working load?

4 times Every time a bosun's chair is rigged, the chair, gantlines and lizards must be examined and load tested to at least four times the load they will be required to lift before a person is hoisted.

A. An anti-two-block device

B. A dead-man's handle

C. A load moment indicator only

D. A wind speed sensor

What type of harness does COSWP require for working aloft, as opposed to a simple waist belt?

A. A weighted lifejacket harness

B. A 2-point shoulder harness

C. A waist belt with a single D-ring

D. A 5-point full body harness

Before a bosun's chair is used to hoist a person, COSWP requires it to be load tested to what multiple of the working load?

A. 1.5 times

B. 4 times

C. 10 times

D. 2 times

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