In rappel operations, which line is used for primary descent?

In rappel operations, which line is used for primary descent?

• A. Belay line
• B. Static line
• C. Main rope
• D. Backup line

Answer: (C)

The main rope is used for primary descent because it’s the line you actually descend on and that bears your weight as you move downward. You feed it through your rope device from above and control your speed with braking, so this rope handles the load and gives you a controlled descent. The backup line is kept for safety redundancy in case something goes wrong with the main rope, but it isn’t the line you descend on. The belay line is used from the top to control or arrest the descent rather than to carry you down. The static line refers to a fixed, low-stretch line used for fixed-line work or different setups, not the line you descend on.

The main rope is used for primary descent because it’s the line you actually descend on and that bears your weight as you move downward. You feed it through your rope device from above and control your speed with braking, so this rope handles the load and gives you a controlled descent. The backup line is kept for safety redundancy in case something goes wrong with the main rope, but it isn’t the line you descend on. The belay line is used from the top to control or arrest the descent rather than to carry you down. The static line refers to a fixed, low-stretch line used for fixed-line work or different setups, not the line you descend on.