The worker is using his hand to guide a suspended steel frame toward its final position. The crane chain and hook establish that this is a live suspended load.
His hand is in contact with the frame, directly influencing where it lands.
If the frame swings, shifts or settles unexpectedly, the hand on its face can become caught between the moving frame and any fixed structure it comes to rest against.
The same hand that is guiding the load is close to the point where the moving load may meet another object.
Could the frame move? If it did — where would the hand be?
One worker is holding the vertical component with both hands while another worker uses a sledgehammer to drive it down.
The holding worker's hands are close to the point where the sledgehammer will strike. The two operations — holding and striking — are happening in the same small area at the same time.
If the sledgehammer misses or deflects, or if the component shifts under impact, the holding worker's hands are directly in the path of what follows.
What happens to one person's hands may depend on another person's action.
The worker is manually positioning the lifting hook onto an ingot. To do this, the hand must enter the working area of the lifting attachment.
While the hand is in that position — between the hook and the ingot — the crane or lifting system could tension, lift or move unexpectedly.
If that happens, the hand or fingers can be caught between the lifting hook and the ingot.
The hand is in the space. The system is live.
Could the hook move? If it did — where would the hand be?
Workers are positioning a crane chain among steel sections on the floor. The hands are at the level of the material, working the chain into position.
If one of the sections moves or shifts, a hand between them can be pinched or crushed.
If the chain moves or tightens, a hand caught between the chain and the material can be trapped.
The chain and the material occupy the same space as the hands. Either could move first.
One hand holds the chisel steady. The other hand swings the hammer toward it. Both operations belong to the same worker.
If the hammer misses, deflects, or if the chisel moves — the holding hand is in the strike path.
Could the chisel move? Could the hammer land somewhere other than its intended point? Could the component shift?
The gap between where the hammer is aimed and where the hand is gripping is the entire margin.