week 3 (chapters 5-7)

Question 1

why are synthetic slings popular among the power delivery industry?

Answer 1

they are non-conductive

Question 2

what are the three configurations of synthetic, wire rope, and chain slings?

Answer 2

vertical/choke/basket

Question 3

the working load limit of a a sling depends on its?

Answer 3

configuration

Question 4

a choke is worth about half the weight of a ________ confirmation

Answer 4

vertical

Question 5

a basket is worth about twice as much as a ________ configuration?

Answer 5

vertical

Question 6

you should use a _______ configuration only when a _______ configuration is not possible? why is this the case?

Answer 6

choker/basket………reduces the strength of the sling

Question 7

when a sling is rigged form each corner of a piece of equipment to the lifting eye, this is called?

Answer 7

a bridle

Question 8

using a choker has what benefits?

Answer 8

allows the sling to bite down
minimizes slip/travel

Question 9

why is the basket configuration the strongest?

Answer 9

it divides the weight between each eye

Question 10

what is the most common material used to make synthetic slings?

Answer 10

nylon

Question 11

slings with missing name tags must be immediately _______ ___ ________?

Answer 11

removed from service

Question 12

what does the name tag on a sling provide?

Answer 12

WLL of choker, basket, and vertical configurations

Question 13

what are the 6 types of web slings?

Answer 13

type 1) triangle choker
type 2) triangle to triangle
type 3) flat eye and eye
type 4) twisted eye and eye
type 5) endless
type 6) reversed eye

Question 14

sling with two different sized triangle eyes on each end……

Answer 14

Type 1) triangle choker

Question 15

triangle metal eyes on each end of the same size

Answer 15

type 2) triangle to triangle

Question 16

eyes woven in each end and can be used in ether of the three configurations?

Answer 16

type 3) flat eye to eye

Question 17

eyes at each end….BUT, have eyes sewn at right angles for chokers and baskets?

Answer 17

type 4) twisted eye and eye

Question 18

continuous loop……………….

Answer 18

type 5) endless

Question 19

multiple widths of webbing help edge to edge stitched together through the middle/wear pads/high strength……?

Answer 19

type 6) reversed eye

Question 20

synthetic slings should be _____ before each use?

Answer 20

inspected

Question 21

synthetic slings are made the same as _____ ________ and therefore wear the same?

Answer 21

synthetic ropes

Question 22

do not subject synthetic slings to _______?

Answer 22

heat

Question 23

never consider synthetic slings to have _______ properties?

Answer 23

insulating

Question 24

cover up _____ _______, and ________ before the use of a sling?

Answer 24

sharp edges, corners

Question 25

when not in use, synthetic slings must be stored clean dry and out of the sun due to ______?

Answer 25

damage from UV light

Question 26

a sling with a knot in it has an efficiency rating of?

Answer 26

0%

Question 27

strand laid single leg, eye to eye IWRC 6x19 describes what?

Answer 27

wire rope sling

Question 28

chains have what common uses?

Answer 28

securing loads providing rigging attachment points lifting and moving poles and other equipment

Question 29

chains that are used for lifting, rigging, or hoisting must be a minimum of?

Answer 29

grade 80 alloy

Question 30

chains used for setting poles are marked CO or CP, what do these abbreviation mean?

Answer 30

describes the master link and choke configuration CO = choke, oblong link CP = choke, pear shaped link

Question 31

what are the two types of shackles used in the power delivery industry?

Answer 31

material and rigging

Question 32

which shackle uses a screw pin, which uses a cotter pin?

Answer 32

rigging........material

Question 33

a sling in a vertical configuration has a tension that is _____ to the load weight?

Answer 33

equal

Question 34

as the sling angle decreases, the tension on each sling ______ substantially

Answer 34

increases

Question 35

what is the formula for solving sling tension?

Answer 35

sling tension= length/height x weight/# of slings

Question 36

load capacities, boom position, operational zones, and notices/warnings are all found where?

Answer 36

load angle chart

Question 37

why must workers always refer to the boom operational charts before operating a boom vehicle?

Answer 37

because operational zones vary greatly

Question 38

what is the STRONGEST position for a boom?

Answer 38

highest angle, fully retracted

Question 39

the ability for a digger Derick to lift an object within its max capacity depends on what two factors?

Answer 39

hook radius sheave height

Question 40

booms of material handlers, (backhoe), are designed for use in almost any combo of angles but only when_________?

Answer 40

truck is level

Question 41

aerial lifts have ______ _______ to allow ground personnel to operate the eqip from the ground.

Answer 41

override controls

Question 42

when using a backhoes digging boom, all workers must stay _______ of the backhoe unless authorized by the operator

Answer 42

out of the swing radius