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Flashcards in Intermediate Rigging Deck (31)
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1

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

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

2

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

Doubled 

3

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

50

4

When lifting personal, free falling is ______ .

Prohibited 

5

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

boom

6

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

platform 

7

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

weight

8

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

weights

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 .

7, 10

10

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

engaged 

11

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

prohibited .

12

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

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

13

Suspended personal platforms are also called ______ and ______.

manbaskets and workbaskets 

14

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

Qualified , Competent 

15

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

minimize 

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 .

5

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 

5

18

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

thimbles

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 ,

ONLY, NOT

20

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

NOT

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 .

master link , shackle 

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 .

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

23

do NOT use wire rope _____ to form eyes in slings 

clips

24

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

shackle

25

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

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

26

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

size, hitch 

27

Allways refer to the _________ specification when calcuating WLL.

Manufacturers

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 .

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

29

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

diameter , type 

30