AC-Ch. 16 Tree Climbing

Question 1

Climbing line installed in a tree to gain access to but not used to work in the tree

Answer 1

Access line

Question 2

Heavy duty pulley with an integrated connection point, a rotating sheave for the rope and extended cheek plates. Used in tree rigging operations

Answer 2

Arborist block

Question 3

Piece of gear that enables a climber to ascend a rope. Attached to the rope it will grip in one direction and slide in the other.

Answer 3

Ascender

Question 4

In rigging a technique for lowering a limb without allowing either end to drop

Answer 4

Balance

Question 5

Type of knot used to join two rope ends together

Answer 5

Bend

Question 6

Ratio of the diameter of an object to the diameter of the rope that is wrapped around it

Answer 6

Bend ratio

Question 7

Curve or arc in a rope between the working end and the standing part.

Answer 7

Bight

Question 8

Heavy duty pulley used in rigging. Designed for dynamic loads

Answer 8

Block

Question 9

Casing enclosing one or more pulleys

Answer 9

Block

Question 10

Post on which wraps can be taken with a rope to tie it off or to provide friction for control

Answer 10

Bollard

Question 11

Method of lowering pieces when the rigging point is below the work traditionally without the use of a block.

Answer 11

Butt hitching

Question 12

Connecting device. Oblong metal ring used in climbing and static rigging that is opened and closed by a spring loaded gate.

Answer 12

Carabiner

Question 13

Hitch used to secure a tree climber to the climbing line, which permits controlled ascents, descent and work positioning.

Answer 13

Climbing hitch

Question 14

Rope that meets specifications for use in tree climbing

Answer 14

Climbing line

Question 15

Work positioning harness designed for climbing trees.

Answer 15

Climbing saddle

Question 16

Sharp devices strapped to a climber’s lower legs to assist in climbing poles or trees being removed.

Answer 16

Climbing spurs

Question 17

Factor by which the rated or minimum breaking strength of a rope or piece of equipment is divided by in determining its working load limit

Answer 17

Design factor

Question 18

Rope construction consisting of a braided rope within a braided rope both of which carry part of the load

Answer 18

Double braid

Question 19

Branch removal technique consisting of an undercut and then a top cut usually made farther out on the branch or with a chain saw directly over the undercut

Answer 19

Drop cut

Question 20

Forces created by a moving load. Load that changes with time and motion.

Answer 20

Dynamic loading

Question 21

Device used to take wraps in a load line to provide friction for controlled lowering or climbing

Answer 21

Friction device

Question 22

Rope construction consisting of a braided rope with no core.

Answer 22

Hollow braid

Question 23

Short rope equipped with carabiners, snaps and/or eye splices. Used for temporarily securing a climber in one place.

Answer 23

Lanyard

Question 24

Rope used to lower a tree branch or segment that has been cut. Lowering line

Answer 24

Load line

Question 25

Small, light duty pulley used in climbing operations. Often used as a knot tender

Answer 25

Micro pulley

Question 26

Method of using ropes and hardware in tree pruning or removal, to control or direct the descent of cut material or to handle heavy loads.

Answer 26

Rigging

Question 27

Rope usually the load line used in rigging operations

Answer 27

Rigging line

Question 28

Placement in the tree or any other point through which the load line passes to control rigging operations

Answer 28

Rigging point

Question 29

Length of rope, usually with at least one eye splice, used to secure equipment or tree sections in rigging operations.

Answer 29

Rope sling

Question 30

Connecting device with a threaded closure mechanism. Used to secure equipment or tree sections in rigging operations.

Answer 30

Screw link

Question 31

U-shaped fitting with a pin running through it. Clevis.

Answer 31

Shackle

Question 32

Inner fitting within a block or pulley over which the rope runs.

Answer 32

Sheave

Question 33

Dynamic, sudden force placed on a rope or rigging apparatus when a moving load or piece is stopped.

Answer 33

Shock-loading

Question 34

Set of methods used to ascend on a single rope as opposed to the doubled rope commonly used in secured footlocking techniques or dynamic climbing systems.

Answer 34

Single rope technique

Question 35

Connecting device used by tree climbers primarily for connecting the climbing line to the saddle.

Answer 35

Snap

Question 36

Separate, short length of rope used to tie the friction hitch in a climbing system

Answer 36

Split-tail

Question 37

Inactive part of a rope.

Answer 37

Standing part

Question 38

Force at which a new piece of equipment or rope in testing fails in tension under a static load

Answer 38

Tensile strength

Question 39

Tying a line on the tip end of a branch to be removed.

Answer 39

Tip-tied

Question 40

End part of a rope used for rigging and climbing.

Answer 40

Working end

Question 41

Tensile strength divided by design factor. Maximum load that should not be exceeded in a piece of equipment, rope or rope assembly when performing its normal working function

Answer 41

Working load limit

Question 42

Lanyard used in climbing, often as a secondary means of attachment.

Answer 42

Work positioning lanyard

Question 43

Second climbing line hung in a tree in case it is needed to reach a victim in an emergency

Answer 43

Access line