Rigging Quizzes 1-10
pulley
A Sheave, also known as a _____ is a grooved wheel attached to a frame or a block that supports a rope that is changing direction
V
A Type _____ web slinger also known as a grown man sling is it endless web swing made by joining the ends with a loadbearing splice
Periodic
A _____ inspection is a thorough rigging equipment inspection performed by at regular intervals
rated compacity
A crane is typically specified by its
four
A digger derrick typically includes blank outriggers to stabilize the truck while it's a load
DOE
A unique feature of the DOE standard is that requires that all lives be categorized as ordinary, critical, pre-engineered production, or personal before a Lyft is planned and executed
Trolleys
Are typically used to support leather or chain type wastes and Cara should be taken that none of the components used to have working load limits higher than the equipment above them
lift points
As a general rule, common lives involve loads with well-defined blank that can be safely who is still with one or two swings and either single crane or one or two manual hoists
bridle
Hitch is a sling hitch in which two or more slings share a common and lifting that is used as a lifting point
nip
Is a pressure point created with a rope crossed over itself after turn around and object
fall zone
Is an area where particularly or come pleat Lee suspended materials might land if they become loose from a load of the rigging of crane fails
Grips
Lemon use grips to help tension wire and cable during installation and while making repairs
45
Ragley robes are quickly identified by their wires crossing the axis of the rope at approximately
return eye
Sling is a sling that has multiple wits of webbing held edge to edge in which each eye forms of right angle to the plane of the sling body
Forged eye bolts
The common types for forged eyebolts army scenery in that
Weight
The most common critical factor in rigging and lifting a load is
Hoist
The most common hook design
Motor truck platform
The most common platform type for mobile cranes is a blank platform which is similar to a typical flatbed truck with a long bed
blocks
The most common types of _______ used an industrial hoisting application or a crane wire rope tackle gin and snatch
load triangle
The most precise Way to calculate the tension on a sling involves a
high carbon steel
The most widely used material for wire rope is________ which is available in a variety of grades each providing slightly different properties
mechanical advantage
The number of parts in a block and tackle the configuration determines the_____
lacing
The simplest reeving method
400
according to ASME B30.9 The normal temperature range for the use of chain is -40-___
back splice
also known as a crown finishes a rope and vibrating it's loose strands back on itself
85% to 95%
an actual practice most spices are not perfect but still achieve efficiencies in the rates of
industrial cranes
are generally classified based on the type of design of the supporting structural members and include gantry overhead and jip cranes
Rollers
are lengths of pipe or around steel stock that are placed under a load to provide a lower friction surface
turnbuckles
are typically used in complex rigging applications in which asymmetrical load requires swings of different links
Helicopter cranes
are used to lift loads in remote and in accessible areas where is not accessible do use other types of crans
Cranes
are used to offload large construction materials from delivery vehicles transport materials around a job site for a fabrication or a processing insert finished components in place
Round slings
art particularly useful as choker hitches but the configuration of this hitch has a significant affect on the strength of the sling
Jib
crane is it industrial crane composed of a Waze trolley that travels along a horizontal them which is supported by a single structural leg
mobile
cranes can be brought to a job site temporary early for a relatively small number of lives
one third
for symmetrical rigging arrangements of four or more points each point is considered to be supporting_____ of the load weight
weight
ground conditions should be evaluated to determine whether the ground can support the blank of the hoisting equipment and load
Standards
have no authority unless they are adopted by a federal state or local government as regulations
choker
hitches are commonly used to attach slings to bundles of long material such as beams tubing and lumber
16 die
in the United States on average workers die as a result of workplace accidents
outrigger
increases the effective footprint of a crane which makes tipping less likely
Lift
is One complete set of hoisting actions performed by workers who transport a load from a working point to a destination.
Wire rope
is a block used with powered wastes when sever conditions of service are not expected
Trucker hitch
is a compound knot that as a distinct feature of providing mechanical advantage when tightening
lift planning
is a critical part of a comprehensive rigging and hoisting safety program
Thimble
is a curved piece of metal that supports the loop of rope and protects it from sharp bends and abrasion
Sling
is a flexible length of loadbearing material that is used to rake a load
Equalizer beam
is a load level alert that is used to stabilize load by distributing the load equally between two sling legs
lashing
is a method of bending to objects to each other by wrapping rope around them numerous times
lattice boom crane
is a mobile crane with the boom constructed from one or more sections of thin steel grid work
air caster
is a pneumatic Device that is placed under load to allow horizontal movement of the load
regulation
is a rule made mandatory by a federal state or local government
birdcaging
is a type of damage to wire rope in which the outer strands separate and open
Forklift
is a vehicle with hydraulically operated forks used to lift and transport loads
selvedge
is an edge treatment on woven material that helps prevent unraveling
cribbing
is blocking used to temporarily support a load while at rest
kinking
is caused by tightening of a loop that is restrained from and twisting
Shackle
is commonly used to make the connection between the rigging assembly in the hoisting hook though it can also be used for other purposes
working load limit
is determined by dividing the braking strength of a piece of rigging equipment by the safety factor
Link
is it plain rigid loop attached to the end of a sling or hung on a crane hook that helps connect multiple rigging components together
Machinery lift
is it two wheel dolly with swivel casters and a hydraulic lift which is placed at the edge of a load
chain
is recommended for rugged industrial applications in which flexibility abrasion resistance and long life are required
loop eye
is the length of webbing folded back and spliced to the swing body forming a closed loop
Bending efficiency
is the ratio of the length of a bent route to it nominal strength rating
Drift
is the tendency of a load to continue moving after the crane is stopped
weaving
is the threading of a group through an opening or around sheave
Hoisting
is the transportation of a load by a crane or hoist
plaiting
is the weaving of four pairs of alternating twisted strands into a rope
seizing
is the wire wrapping that spins the end of the wire rope near where is cut
whipping
is the wrapping of twine that binds the end of the fiber rope near where is cut
pry bar
it's a Ford steel bar with an angle and flattened and there's pushed under the edge of a load in order to lift the load slightly
two or more
most basket hitch rigging requires two or more baskets
square
not is not very secure and should never be used to fasten two different routes together or for any critical application
FACE
program involves on-site investigations that are conducted to collect facts and witness observations from accidents
Synthetic
ropes are nearly universal in the lifting industry because of their constant characteristics in special properties such as chemical resistance
ropes
should be stored on walls or rolled into coils
eye-and-eye
sling is a sling in which loops are formed at each end of the sling body by doubling over the material and securing it by weaving or using a compression fitting
synthetic
slings should never be used for wasting personal baskets
Spelter
socket is a socket that uses Morton zinc or reason to replace your the end of the wire room inside the socket
5
some amount of deformation is acceptable but change should be removed from service if the enlongation exceeds
200
synthetic slings should not be exposed to temperatures below -40 and above
proof test
test is a non-destructive test in which a sling is subjected to attention force greater than its rated load but less than it's breaking strength
90
when inspecting a chain the links should be able to freely rotate from side to side approximately______ without the links bending
Center of gravity
when rigging keeping allowed under control requires determining the loads _____
rated load
when selecting slings for a particular rigging application the primary consideration is there
180
wire rope with the fiber core is typically rated for temperatures of two