RIGGING EQUIPMENT
The maximum load weight that a sling is designed to carry is the _____.
rated capacity
Which style of hook is designed to be used on alloy steel chain slings?
Grab hook
Wire rope, alloy steel chain, metal mesh fabric,
synthetic rope, synthetic webbing, or jacketed synthetic
continuous loop fibers made into forms, with or without end
fittings, used to handle loads.
what is Slings
The maximum load weight a sling or piece
of hardware or equipment can hold or lift. Also referred to
as the working load limit (WLL).
what is rated capacity
A group of wires wound, or laid, around a center
wire, or core. Strands are laid around a supporting core to
form a rope.
what is strands
Most alloy steel chain slings can be used in temperatures up to _____.
500°F (260°C)
To lift heavy loads, all chain hoists use a(n) _____.
gear system
A device that applies a mechanical force for lifting
or lowering a load.
what is a hoist
The rigging configuration by which a sling connects
the load to the hoist hook. The three basic types of hitches
are vertical, choker, and basket.
what is hitch
Cord attached to the strands of an endless loop
sling. It protrudes from the jacket. A tattle-tail is used to
determine if an endless sling has been stretched or
overloaded.
what is tattle-tale
When a tattle-tail has been pulled into the jacket of a synthetic sling, the sling most likely has
been _____.
overloaded
A type of hand-operated winching device that should never be used for vertical overhead
lifting is a _____.
come-along
A person who, through the possession of
a recognized degree, certificate, or professional standing,
or one who has gained extensive knowledge, training, and
experience, has successfully demonstrated his or her
ability to solve problems relating to the subject matter, the
work, or the project.
what is a Qualified person
A measure taken from the master link of the
sling, where it bears weight, to either the end fitting of the
sling or the lowest point on the basket.
what is sling reach
The main connection fitting for chain slings.
what is master link
If a wire rope sling appears to be damaged, the decision to keep it in service must be made by
competent person
Two choker hitches are recommended when lifting a load longer than _____.
12 feet (≈3.5 m)
The total amount of what is being lifted, including all
slings, hitches, and hardware.
what is load
The parts of the sling that reach from the
attachment device around the object being lifted.
what is sling legs
what is a bridal
A configuration using two or more slings to connect
a load to a single hoist hook.
Because of the need for increased toughness, shackles for most overhead lifting are made
from _____.
forged steel
If an emergency occurs during a rigging operation, who is allowed to give the emergency
stop hand signal?
Anyone on the ground who is in site of the crane operator
A rope made from steel wires that are formed
into strands and then laid around a supporting core to form
a complete rope; sometimes called cable.
what is wire rope
A component of the sling that shows the
rigger whether the sling has suffered too much damage to
be used.
what is warning yarns
A grooved pulley-wheel for changing the
direction of a rope’s pull; often found on a crane.
what is sheaves