Chapter 18: Hauling Systems

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Minimum system requirements of a Z

Two locking carabiners

Utilizing the SUDOT whistle command system, how many whistle blasts indicate that rescuers should haul?

Two whistle blasts

Which of the following is NOT a technique for a free

Tying the PCD to the belay line

The calculated mechanical advantage for rescue operations is typically actual mechanical advantage (AM

because rescuers are not able to calculate all the possible friction loss. A. False

In a direct pull haul system how much force is necessary to raise a 100

100 lbs of force

What NFPA standard sets the rating of artificial high directional?

1983

With a simple haul system with a 2:1 TMA, how much rope must be pulled to haul a load 10 feet?

20 feet of rope

How much rope must be pulled to haul 10 feet of rope with a 4:1 TMA system?

40 feet

With a 4:1 TMS system how much force is necessary to raise a 100

40 lbs of force

With a 4:1 MA system, if a haul team exerts 1000 lbs of force what could be the resulting force on portions of the system?

4000 lbs

To offer the greatest protection the PCD should be positioned:

As far forward on the hauling system as possible while still being safely in reach of the rescuers

Which of the following is NOT a purpose of a rope grab in a hauling system?

It serves as a belay.

Theoretical mechanical advantage can be calculated as the ratio:

Load:Force required to move load

As a general rule, when two rescue hauling systems are joined at the input of the first, the resulting TMA is obtained by _______ the two TMAs.

Multiplying

Which of the following would NOT be used as a high directional?

Rock

In what type of system do all moving pulleys move toward the anchors at the same rate as each other and the load?

Simple pulley system

What can be used as a soft cam rope grab?

Tandem Prusiks

_______ is a method for calculating the TMA of a compound or complex pulley system, the tension in any one part of the system, and the force on each component.

The T system

What piece of equipment is NOT needed to create a personal set of fours?

Three locking carabiners

Minimum requirements of a 4:1 MA piggyback hauling system include all of the following EXCEPT:

Three pulleys


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