Question

What action dose the signal person intend the operator perform if he extends his arm at shoulder height, makes a fist with his hand and sticks his thumb up

Answer 1

The signal of extending an arm at shoulder height, making a fist, and sticking a thumb up usually instructs an operator with heavy machinery, such as a crane, to raise the boom or elevate a load.

Step-by-step explanation:

When a signal person extends their arm at shoulder height, makes a fist with their hand, and sticks their thumb up, it typically indicates a command in crane and heavy machinery operation. This signal usually means that the operator should raise the boom, elevate, or otherwise lift whatever load is being manipulated. These signals are crucial for ensuring safety and efficiency on construction sites and other environments where heavy machinery is operated.