19 Off-Road Recovery Operations Flashcards
1
Q
In order to ensure a safe recovery operation, the vehicle should be weighed and the recovery equipment should have a safety factor of at least:
A
2:1
2
Q
Three possible off-road recovery scenarios:
A
- Vehicle uses own winch to pull itself back onto roadway
- A vehicle being pulled back onto the road by another vehicle
- A vehicle being “snatched” back onto the road by another vehicle using a recovery strap
3
Q
A winches maximum pulling capacity is rated with the first layer of rope wound on the drum.
A
On average, each layer of rope wrapped around the drum will reduce the pulling power by approximately 10-15%
4
Q
One inch of strap webbing equals 10,000 pounds. (so 3 inch strap = 30,000 pounds)
A
5
Q
Strap safety margin is
A
2:1
6
Q
Anchor Straps and Recovery Straps
A
- Tree Trunk Protector
- Choker Chains
- Recovery Straps
- Tow Straps
7
Q
The first step in winch operations is
A
safety
8
Q
The anchor points selected for a winch operation should be
A
secure and bombproof
9
Q
At least ___________________ should always be left on the winch spool.
A
5 wraps of rope
