A machine __ is a device that is designed to keep the operator clear of dangerous machine parts. Barrier Guard Rost Emerponcy stop

## Step 1<br />The problem is asking for the term that describes a device designed to keep the operator clear of dangerous machine parts. The options provided are "Barrier", "Guard", "Rost", and "Emerponcy stop".<br />## Step 2<br />The term "Guard" is the correct answer because it refers to a device that is designed to keep the operator clear of dangerous machine parts. This is a safety feature that is commonly found in many machines to prevent accidents.<br />## Step 3<br />The other options, "Barrier", "Rost", and "Emerponcy stop", do not accurately describe a device that is designed to keep the operator clear of dangerous machine parts.