RTC Rope Systems & Rigging 3

Question 1

What is the primary purpose of a load cell (dynamometer) in technical rescue operations?

Accepted Answer

To measure the actual force being applied in the rope system

Answer

To lock the rope at a precise point during lowering

Answer

To increase the efficiency of a mechanical advantage system

Answer

To prevent overloading of a single anchor point

Question 2

When rigging a Munter hitch (Italian hitch) for rescue use, which statement is most accurate?

Accepted Answer

It functions as a friction hitch that can be used for both lowering and belaying with a locking carabiner

Answer

It can only be used for ascending, not descending

Answer

It must be tied with static rope to prevent slippage

Answer

It provides a fixed 2:1 mechanical advantage

Question 3

What distinguishes 'static' kernmantle rope from 'dynamic' kernmantle rope in the context of technical rescue?

Accepted Answer

Static rope has minimal stretch for load-bearing rescue systems; dynamic rope elongates to absorb fall forces

Answer

Static rope is made from polyester; dynamic rope is made from nylon

Answer

Static rope is rated for one-person loads; dynamic rope is rated for two-person loads

Answer

Static rope is used only for anchors; dynamic rope is used only for haul lines

Question 4

In the context of anchor systems, what does 'self-equalizing' mean, and which anchor configuration achieves it?

Accepted Answer

The anchor can bear load from any direction without re-rigging; achieved with a sliding X (magic X) configuration

Answer

The anchor distributes load only in one fixed direction; achieved with a cordelette

Answer

The anchor automatically releases when overloaded; achieved with a releasable hitch

Answer

The anchor equalizes forces between two rescuers; achieved with a Y-hang

Question 5

When two ropes must be joined end-to-end in the field during a rescue, which knot is most commonly recommended because it is relatively easy to untie after loading?

Accepted Answer

Figure 8 bend (Flemish bend)

Answer

Square knot

Answer

Double Fisherman's knot

Answer

Sheet bend

Question 6

What is the standard minimum safety factor (ratio of minimum breaking strength to working load) typically required for life safety rope systems in NFPA 1983?

Accepted Answer

15:1

Answer

5:1

Answer

10:1

Answer

20:1

Question 7

What is the primary advantage of adding a 'piggyback' (or 'drop loop') system to an existing 3:1 haul system?

Accepted Answer

It increases the overall mechanical advantage to approximately 9:1 without requiring additional anchors

Answer

It converts the system to a belay-only configuration

Answer

It reduces rope consumption during the haul

Answer

It allows the system to be operated by a single rescuer on the load