Intermediate Rigging

Question 1

Is using a crane to lift personal specifically prohibited by OSHA ?

Answer 1

NO, but the restrictions are such that it is only permited in special situations where no other method is sutable.

Question 2

When using a crane for personal lifts , the rope design factor is _______.

Answer 2

Doubled

Question 3

When making personal lifts, no more than ______ percent of the crains capacity , including rigging , may be used .

Answer 3

50

Question 4

When lifting personal, free falling is ______ .

Answer 4

Prohibited

Question 5

When lifting personal, Anti-two-blocking devices are required on the crane ____.

Answer 5

boom

Question 6

When lifting personal, the ______ must be specifically designed for lifting personal.

Answer 6

platform

Question 7

when lifting personal, the personnel platform must be tested with appropriate ______, and then inspected .

Answer 7

weight

Question 8

When lifting personal, every intended use must undergo a trial run with _____ rather than people .

Answer 8

weights

Question 9

When lifting personal, Load lined shell be rated at least ______ times the maximum intended load .Rotational resistant rope shell be rated to at least _____ times the maximum load .

Answer 9

7, 10

Question 10

When lifting personal, all breakes and locking devices shall be ______ when the occupied personnel platform is in a stationary working position .

Answer 10

engaged

Question 11

When lifting personal, cranes that have live booms are ______.

Answer 11

prohibited .

Question 12

In compliance with OSHA 29 CFR 1926.1431 , platform requirments are broken down into four categories: what are they ?

Answer 12

1.) design criteria 2.) platform specifications 3.) platform loading 4.) rigging

Question 13

Suspended personal platforms are also called ______ and ______.

Answer 13

manbaskets and workbaskets

Question 14

personnel platforms shell be designed by a ______ engineer oe a _______ person qualified in structural design .

Answer 14

Qualified , Competent

Question 15

personnel platform suspension systems shell be designed to ____ tipping of the platform due to movement of employees occupying the platform .

Answer 15

minimize

Question 16

Personal platformes , except the guardrail system and personal fall arrest system anchorage, shell be capable of supporting, without failure , its own weight and at least _____ times the maximum intended load .

Answer 16

5

Question 17

when making personal lifts : wire roap, shackles,rings,master links, and other rigging hardware must be capable of suppoting at least _____ times the maximum intended load applied or transmited to the component

Answer 17

5

Question 18

when making personal lifts, all wire ropes shell be fabricated with ______

Answer 18

thimbles

Question 19

When making personal lifts, bridles and associated rigging for attaching the personal platform to the hoist line shell be used _____ for the platform and necessary employees,their tools, and the materials necessary to do their work, and shell _____ be used for any other purpose when not hoisting personnel ,

Answer 19

ONLY, NOT

Question 20

Personal lift platforms shell _____ be used to hoist only materials or tools when not hoisting personel .

Answer 20

NOT

Question 21

When making a personal lift, all wire roap bridle slings used to make the lift, shell be connected to a ______ or ______is such a manner as to ensure that the load is evenly devided among the bridle legs .

Answer 21

master link , shackle

Question 22

when making a personal lift , hooks on headache ball assemblies, lower load blocks, or other attachment assemblies, shall be of type that can be ____ and _____ , eleminating the hook throat from opening .

Answer 22

closed and locked ( an alloy anchor type with bolt,nut, and retainer pin may be used too .)

Question 23

do NOT use wire rope _____ to form eyes in slings

Answer 23

clips

Question 24

Use a _____ when more than one sling is used at the same attachment point .

Answer 24

shackle

Question 25

Optimum sling angle falls between _____ and _____ degrees from horizontal.

Answer 25

60 and 45 (angles beyond this range should be considerd hazardous )

Question 26

Exact sling capacity can be calculated by determining the sling _____, clasification, _____configuration , and sling angle .

Answer 26

size, hitch

Question 27

Allways refer to the _________ specification when calcuating WLL.

Answer 27

Manufacturers

Question 28

Should the need arise in the field to make a quick determination of WLL of a wire rope, what formula can be used ? so you can get the WLL of that wire rope when choked .

Answer 28

1.) convert the diameter of the rope into eighths 2.) square the eighths 3.) multiply by 150

Question 29

The WLL of a wire rope in a single vertical hitch is based on the ropes _______ and the ______ of wire rope being used .

Answer 29

diameter , type

Question 31

To determine the WLL for bridle hitches , measure the length of the _______ (L) and the ______ between the ____ and the _____(H) . When this info is obtained , what formula do you used ?

Answer 31

(sling leg , distance, hook , load.) FORMULA : WLL= (W)(H÷L)(2) , W in this formuls stands for WLL of one sling in a straight pull, dont forget to use the formula on both legs, because you dont know if both legs are supporting equal portions.