slingers v2 Flashcards
(40 cards)
a) On mobile-type lifting
equipment, what can apply loading
or pressure to the ground and
b)name TWO ways that pressure
can be reduced.
a) Tracks, wheels or stabilisers/outriggers. b)
By reducing the machine’s overall weight
and/or by increasing the surface area of the
weight-bearing component(s)
Why must the hoist rope of an item
of lifting equipment (mobile/crawler
crane etc.) be kept vertical before
lifting any loads?
The load may drag and further may induce
load swing causing possible overload.
What information is needed when
estimating the weight of a load?
Size (volume), material type (or density) and
structure (hollow or solid).
The slinger has to use new lifting
accessories that they are
unfamiliar with. What do
Regulations (e.g. LOLER 98) and
other guidance require the
slinger/signaller to have?
Sufficient information, instruction and training
on that type.
a) When is a trial lift carried out
and b) name THREE checks to be made
a) Just after the weight of the load is taken on
EACH lift. b) To ensure the load is supported,level, and that the lifting accessories are attached correctly.
A 1-tonne webbing sling is
attached to a load using a choke
hitch. What is the maximum weight
the accessory is allowed to lift?
(Note. The tester may provide a
different figure in order to check
understanding)
0.8 tonne (800 kg). (or as per tester’s revised
figure)
Why should checks be made to
lifting accessories after work has
ceased?
To ensure no damage has occurred during
work.
Name FIVE proximity hazards
which could affect a lifting
operation.
Lifting near other people, overhead electric
cables, other work equipment, nearby
structures, excavations/trenches,
underground services, entrances/exits, fire
hydrants etc.
Give TWO examples of where The
Work at Height Regulations may
apply to lifting operations.
Access/egress to the lifting area, access/
egress to placing the accessories onto a high
load, removing accessories from a high load
etc.
When working with non-hoist rope
lifting equipment e.g. excavator,
forklift etc. just before going to
attach or disconnect a load, a)
what action should the
slinger/signaller undertake, b) what
action should the machine
operator undertake and c) explain
why?
a) Check with the operator that is it safe to
approach the machine b) that the machines
controls are isolated and c) so that no
unplanned movement of the any part of the
machine can occur
During inspections, damage has
been found to a lifting accessory.
What TWO actions must be taken?
It must be taken out of service, reported,
CLEARLY marked as unusable.
If radios are to be used during the
lifting operations, what FIVE
actions and checks must be made
by the slinger/signaller before use?
They know how to USE the radio, the
batteries will last for the operation and/or
spare batteries are supplied, the correct
frequency is selected, the signal strength is
sufficient, allocation of a call sign for SENDER
and RECEIVER, AGREEING special
codes/names between sender and receiver
etc.
Name the FOUR stages of the
hierarchy of control for
vehicle/plant manoeuvring
operations
Minimising or eliminating
movements/reversing, isolation of area,
controlling a manoeuvring area within a larger
work area with marshalls, directly marshalling
machines through other working areas.
List SIX factors that must be taken
into account by both the machine
operator and slinger/signaller if a
suspended load is to be travelled
across a site.
The machine is capable and within limits,
travelling with a load is authorised at that site,
the travel route is clear of overhead hazards,
the travel route ground is suitable, the
machine is configured correctly,
environmental conditions, i.e. wind, are
suitable, sufficient help is available, all actions
meet lift plan criteria etc.
When using more than one lifting accessory, how should they be
secured to the crane hook?
By using a shackle.
What is meant by centre of gravity,
or how is the centre of gravity
determined, on a load to be lifted?
The point that it is in balance.
What are the TWO actions that a
slinger/signaller undertakes on
lifting accessories during pre-use
inspections?
Carry out checks according to
MANUFACTUREs requirements (as a
minimum) and REPORT all defects
IMMEDIATELY.
a) What is meant by the rated
(lifting) capacity of lifting
equipment and b) who determines
it?
a) The maximum lifting capacity of for any
PARTICULAR configuration. b) The lifting
equipment manufacturer.
Name FIVE items that should be
listed within a site traffic
management plan.
Routes for access/egress to/from site, Site
routes, One-way systems, Restricted areas,
Proximity hazards, Segregated areas, Holding
areas, Pedestrian walkways, Approved routes
to specific areas.
Only two legs of a 6 tonne four-leg
chain sling are being used. In
principle, what is the maximum
load that can be lifted with that
sling?
3 tonnes.
The legs of a chain sling should be
no more than 90 degrees apart
from each other. What happens to
the SWL if the angle is larger?
It is reduced (causing possible overload)
Before being guided by a signaller
for a pick and carry duty, what
instruction should be given to the
machine operator by the signaller
if they lose sight of each other?
Stop the machine until the signaller becomes
visible.
During a lift, it is suspected that a
lifting accessory exceeded the
rated capacity. What would be the
course of action?
The load to be landed and the accessory to
be taken out of service IMMEDIATELY and
thoroughly inspected or examined.
Before guiding and assisting the
movement of mobile lifting
equipment that is being
repositioned to carry out a new
lifting operation a) what should the
marshaller/signaller ensure and b)
with whom?
a) That the machine is configured/set up
correctly for travel and b) the operator of the
machine.
