slingers v2

Question 1

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.

Answer 1

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)

Question 2

Why must the hoist rope of an item
of lifting equipment (mobile/crawler
crane etc.) be kept vertical before
lifting any loads?

Answer 2

The load may drag and further may induce
load swing causing possible overload.

Question 3

What information is needed when
estimating the weight of a load?

Answer 3

Size (volume), material type (or density) and
structure (hollow or solid).

Question 4

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?

Answer 4

Sufficient information, instruction and training
on that type.

Question 5

a) When is a trial lift carried out
and b) name THREE checks to be made

Answer 5

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.

Question 6

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)

Answer 6

0.8 tonne (800 kg). (or as per tester’s revised
figure)

Question 7

Why should checks be made to
lifting accessories after work has
ceased?

Answer 7

To ensure no damage has occurred during
work.

Question 8

Name FIVE proximity hazards
which could affect a lifting
operation.

Answer 8

Lifting near other people, overhead electric
cables, other work equipment, nearby
structures, excavations/trenches,
underground services, entrances/exits, fire
hydrants etc.

Question 9

Give TWO examples of where The
Work at Height Regulations may
apply to lifting operations.

Answer 9

Access/egress to the lifting area, access/
egress to placing the accessories onto a high
load, removing accessories from a high load
etc.

Question 10

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?

Answer 10

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

Question 11

During inspections, damage has
been found to a lifting accessory.
What TWO actions must be taken?

Answer 11

It must be taken out of service, reported,
CLEARLY marked as unusable.

Question 12

If radios are to be used during the
lifting operations, what FIVE
actions and checks must be made
by the slinger/signaller before use?

Answer 12

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.

Question 13

Name the FOUR stages of the
hierarchy of control for
vehicle/plant manoeuvring
operations

Answer 13

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.

Question 14

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.

Answer 14

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.

Question 15

When using more than one lifting accessory, how should they be
secured to the crane hook?

Answer 15

By using a shackle.

Question 16

What is meant by centre of gravity,
or how is the centre of gravity
determined, on a load to be lifted?

Answer 16

The point that it is in balance.

Question 17

What are the TWO actions that a
slinger/signaller undertakes on
lifting accessories during pre-use
inspections?

Answer 17

Carry out checks according to
MANUFACTUREs requirements (as a
minimum) and REPORT all defects
IMMEDIATELY.

Question 18

a) What is meant by the rated
(lifting) capacity of lifting
equipment and b) who determines
it?

Answer 18

a) The maximum lifting capacity of for any
PARTICULAR configuration. b) The lifting
equipment manufacturer.

Question 19

Name FIVE items that should be
listed within a site traffic
management plan.

Answer 19

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.

Question 20

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?

Answer 20

3 tonnes.

Question 21

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?

Answer 21

It is reduced (causing possible overload)

Question 22

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?

Answer 22

Stop the machine until the signaller becomes
visible.

Question 23

During a lift, it is suspected that a
lifting accessory exceeded the
rated capacity. What would be the
course of action?

Answer 23

The load to be landed and the accessory to
be taken out of service IMMEDIATELY and
thoroughly inspected or examined.

Question 24

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?

Answer 24

a) That the machine is configured/set up
correctly for travel and b) the operator of the
machine.

Question 25

On the lifting capacity diagram
chart within in Section A40: a)
what is the type of sling shown in
item B and b)what is type of hitch
shown?

Answer 25

a) Flat web sling. b) Single choke.

Question 26

During the lifting operation, part of
the task cannot be carried out as
detailed in the lift plan. a) What
initially must happen to the lifting
operation and b) who authorises
any changes?

Answer 26

a) The operation MUST stop until the plan is
amended. b) The appointed person (lift
planner).

Question 27

On what type of loads would a
spreader beam be used?

Answer 27

Long loads.

Question 28

What TWO things should be
considered when selecting a place
of refuge or safety within a designated plant manoeuvring
area?

Answer 28

That it is easily accessible and that persons
within the refuge and protected from plant
movements and other works.

Question 29

Name THREE ways in which wind
speed can affect the lifting
operation.

Answer 29

Cause load swing, can slow or increase the
slew speed of the crane, and can shut down
lifting operations.

Question 30

Which parts of a slewing-type
lifting equipment is the radius (for
lifting) measured from?

Answer 30

From the centre of the slew ring to the central
point of the hook (usually).

Question 31

Two boom/jib equipped cranes are
working in the same vicinity that
encroach on the operating radius
of each. What actions would the lift
plan or method statement normally
specify?

Answer 31

Co-ordination of the two cranes (via the AP,
crane supervisors or crane co-ordinator) and
possibly limits on slewing.

Question 32

If setting up to lift loads in a
pedestrianised area, state ONE
factor that needs to be taken into
account by the slinger/signaller.

Answer 32

Physical segregation of pedestrians from
OVERHEAD loads.

Question 33

What should the slinger confirm
with the lifting equipment operator
regarding the audible alarm (if
fitted) when setting up to carry out
a lift ?

Answer 33

That the alarm has been activated.

Question 34

State the possible effect on an
item of lifting equipment if it is
positioned on a slope and lifts a
load?

Answer 34

The radius can increase causing possible
instability or inward = side loadings

Question 35

With lighter boom construction on
boom or jib-equipped cranes, how
does the deflection of a boom or
jib affect the lifting of a load?

Answer 35

The boom deflection can cause an increase in
the radius.

Question 36

What possible effects does
excessive rain have on the lifting
operation?

Answer 36

Visibility between the machine operator and
signaller can be reduced, loads may be
heavier, and loads may be more slippery
especially if using fibre slings.

Question 37

The safe working load (SWL) of a
multi-leg chain sling only applies in
what TWO conditions or
configuration?

Answer 37

When each leg is equally loaded and within
45 degrees from vertical (45 degree beta/90
degrees included angle).

Question 38

Wind speeds can be variable
throughout the working day. What
action must be taken to ensure
safe working conditions are
maintained?

Answer 38

Wind speeds must be constantly monitored.

Question 39

a) What does the safe working
load (SWL), as stamped on lifting
accessories, indicate? b) what
action should be taken if the SWL
is not marked on a lifting
accessory?

Answer 39

a) The maximum load that the accessory is
allowed to lift in certain configurations and b)
the accessory cannot be used.

Question 40

What TWO checks need to be
made before a load is to be
lowered into a trench or
excavation?

Answer 40

In principle - a) that the trench is clear of
personnel or hazards and b) the sides of the
trench are supported (or machine sufficient
distance away) - variations can occur
dependant on risk assessment