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83 Cards in this Set

  • Front
  • Back

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

The centre of gravity is determined by the point that is in balance.

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

Check that there is one fitted and is turned on.

What are the ideal conditions for lifting accessories to be stored?

Hung off the ground and kept dry.

Name the FOUR stages of the hierarchy of control with regards to Vehicle/Plant maneuvering operations?

1, Eliminate/Minimise Movement/Reversing

2, Isolate the working area

3, The control of the manouvering area by using Marshals

4, The direct marshalling of machines which have to travel through other working areas.

When working with slewing type lifting equipment in a restricted area:

a)What are the dangers with regards to a machines counterweight?

b)When should measures be taken?

c)What measures should be implemented?

a) Gap between counterweight and structure being reduced or contacting the structure.

b) Measures should be taken when gap is less than 600mm

c) Ensure sufficient clearance is maintained or access routes need to be blocked off.

a) On hoist rope-equipped lifting equipment , how does the number of lines/falls of rope affect the lifting capacity?

b)how is the hoist speed affected by number of lines/falls of rope being reduced?

a) More lines increases the lifting capacity but slows down the hoist speed.

b) Hoist speed is faster with reduced lines.

If assisting to fit a fly jib to a crane, why is it important to follow manufacturers guidelines precisely?

To avoid accident, incidents or damage.

Deflection can affect the lifting of a load as it can increase in radius. ( a fly jib is an extension to the jib)

On a busy construction site, how would the slinger/signaller be identified to the crane operator?

Wear different PPE to be identified.

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

Signal to land the load, take accessory out of service until it can be thoroughly inspected.

Only two legs of a six tonne four-òegged chain sling are being used, what is the maximum load that can be lifted?

3 Tonnes

What is the purpose of a risk assesment?

Identify hazards and place control measures on them.

If radios are to be used in lifting operations, what FIVE actions and checks must be carried out by slinger/signaller before use?

1, Check batteries are charged. (carry spares)

2, Check radios are in working order, check signal strength.

3, Set to the same channel.

4, Check radios are UHF/VHF licensed.

5, Receive training on use of radios.

The safe working load (SWL) of a multi-leg chain sling only apply in what TWO configurations?

1) Each leg is equally loaded.

2) Within 45° from vertical.

When can barriers/signs marking a lifting operations working area be removed?

When authorised machines are entering or exiting the area.

(it must be replaced when finished)

Travelling with extra-long loads can be hazardous for what reason?

Longer loads can swing or turn, they can strike the machine/structure.

Before starting signalling duties for pick and carry duties, describe FOUR actions a slinger must make to be safe?

1, Ensure place of refuge/safety

2, Slings checked and properly attached to load

3, No people/objects in way of the area of travel

4, Landing site prepared and ready to receive load.

Why are slingers considered 'safety critical' workers?

There could be serious health and safety consequences for myself and others.

Name FIVE proximity hazards which could affect a lifting operation.

1, Lifting near people

2, Lifting near buildings

3, nearby buildings

4, fire hydrants

5, Excavation trenches

When working with non-hoist rope lifting equipment e.g an excavator, forklift etc. Just before going to attach or detach a load

a) what action should the slinger undertake?

b) what action should the operator take?

c) why?

a) Check with operator that it is safe to approach machine.

b) Isolate the machine.

c) To make sure that there is no unplanned movements of any part of the machine.

Name THREE ways that a hired in slinger can contribute in ensuring repeat business with the contractor.

1) Cooperate with others

2) work safely

3) Punctuality

State the functions/Job role of:


- Overall planning, reviewing and updating of lift plan.

-Production or risk assessments/method statements.

-Appointments for crane team, leading that team.

-Ensuring that certification of crane operators is valid.

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

To check for damage and to ensure they are safe to be used again.

A one tonne webbing sling is attached to a load using a choke hitch. what is the maximum weight the acessory is allowed to lift?

0.8 tonnes

(webbing slings knock 20% off weight)

Before being guided by a slinger / signaller for a pick and carry duty, what instruction should be given to the machine operator by the signaller if they lose control of each other?

He must stop the machine until slinger becomes visible again.

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

Use barriers and exclusion zones to segregate pedestrians from work area.

What are the two actions that a slinger undertakes on lifting accessories during pre use inspections?

1, Check accessories manufacturers recommendations.

2, Wear gloves.

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

You don't want the load to drag and cause swing, this could cause overload.

How does the use of a swivel hook assist in lifting operations?

Swivel hooks prevent twisting of accessories, signaller can twist load away from machine to avoid contact.

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

1, Traffic routes

2, Pedestrian routes

3, One way systems

4, restricted areas.

5,escape routes

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

They should be secured using a shackle.

Explain THREE factors that can affect the integrity of an exclusion zone and safe movement within the zone.

1, Unauthorised Vehicle/Plant movement.

2, Absent/Not enough marshals and signallers.

3, Removed/Missing signs.

Name the advantages of the following types of lifting accesory:

1, Chain sling

2, Webbing sling (round/flat)

3,Steel wire rope

1, chain slings - withstand rougher handling (more robust)

2, Webbing slings - less likely to get damaged delicate loads, easier to attach loads.

3, Steel wire rope - very little stretch at max SWL.

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

It can increase the radius.

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?

To specify limits on slewing, crane supervisor needs to coordinate with good communication between slinger and operator.

What needs to be inspected on a quick-hitch coupler of an excavator if attaching lifting accessories for the lifting of slung loads?

1, Is it approved for lifting?

2, SWL details

3, Condition of accessory attachment point

4, security of pins

5, Make sure it is (QHC) tilted downwards to stop fouling of the accessory on the coupler as the restriction of movement/bending of accessory can be caused.

Give FOUR reasons that may cause mobile lifting equipment to over turn.

1, Soft ground

2, Slopes

3, Excessive load/swing

4, Insufficient counterweight.

a) When is a trial lift carried out?

b) Name THREE checks to be carried out.

a) After the weight of the load is taken on each lift.


1, Load is supported

2, Load is secured

3, Lifting accessories are attached correctly.

How can a qualification or card benefit a slinger/signaller?

It is proof to employer of training and competency.

If a load is inadvertently slewed rather quickly bu the operator what TWO initial effects does it have on the load whilst slewing?

1, Load can swing outwards increasing radius.

2, Trail the jib

What two things should be considered when selecting a place of refuge or safety within a designated plant maneuvering area

1, Easily accessible.

2, Able to protect from other movements/works.

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

1, Report damage to crane supervisor

2, Take accessory out of service, clearly label it.

The legs of a chain should be no more than 90° apart from each other. what happens to the SWL if the angle is longer?

The SWL vecines reduced, causing possible overload.

What THREE main duties of the Health and Safety at work act must employees follow?

1, Take care of ourselves and others who may be affected by our actions.

2, Cooperate with our employer.

3, Do not intentionally or recklessly interfere with health and safety issues.

When a suspended load is being travelled, in what position should the load be situated?

Suspended loads should be travelled as close to the ground as possible.

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

1, There are no personnel/hazards in the trench.

2, The walls of the trench are supported.

If a load is being travelled or slewed, what TWO possible factors should the slinger take into account?

1, Time

2, Distance ( to stop )

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

It can overturn if it has excessive load/swing.

Define a 'hazard'

A danger or a risk

Polyester webbing slings are coloured and have black lines. What do the different colours and number of lines indicate?

Indicates working load limit (WLL)

a) On mobile lifting equipment, what can apply loading pressure to the ground?

b) Name TWO ways pressure can be reduced.

a) Wheels/Tracks/Stabilisers


1,Reducing the machines overall weight

2, increasing the surface area of the weight bearing parts of the machine

Name FOUR different types of level of sanctions that can be applied (by employers and judicial bodies) to slingers who do not comply with or follow legislation and regulations.

1, Verbal warning

2, Written warning

3, Dismissal

4, Prosecution

a) Who is allowed to issue lifting accessory test certificates?

b) When are they issued?

a) An authorised competent person.

b) Once they have been tested.

What are the possible outcomes of facing prosecution for not complying with legislation and regulations?


Name THREE ways in which a slinger can minimise their impact on the environment.

1, Working efficiently

2, Prior planning of work.

3, Correct disposal of waste.

What makes up total (gross) weight of a load that is to be lifted?

1, Weight of load

2, Lifting accessory

3, Hook block.

What possible effect does rain have on the lifting operations?

1, Reduced visibility

2, Load can get heavier (porous materials)

3, Takes longer to load/unload

4, Loads may become slippery

What must be taken into account if a suspended load is being lifted with an accessory e.g chains, which has extra long legs.

Boom/Jib must be taken into account to ensure sufficient ground clearance

Before guiding and assisting the movement of mobile lifting equipment that is being repositioned to carry our a new lifting operation a) what should the marshaller/Signaller ensure and b) with whom?

a) Check that machine is configured and set up correctly

b) Machine operator.

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

Take extra care with any large surface area suspended loads.

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

Centre of slewing ring to centre point of hook.

When undertaking a pick-and-carry duty, explain why turning even gently, with a suspended load can cause an effect on the machine.

Sideways overturn can occur because the centre of gravity could exceed the machines wheel track.

Give TWO examples of where the work at height regulations may apply to lifting operations.

1, For lifting operations this regulation requires access/egress to lifting area and to placing accessories onto a high load.

2, Removing accessories from a high load.

What could affect the radio signal strength between operator and slinger.

1, Building obstructions.

2, Battery strength.

3, Distance between slinger and operator.

Suspended loads with a large surface area need additional care for what reason?

Wind speeds could cause safe parimeters of crane to be exceeded.

a)What is the purpose of a method statement/lift plan?

b) what is required of the slinger/Signaller?

a) To give instruction on how to work safely on a particular task.

b) Slinger must always work towards method statement.

Name THREE ways in which wind speed can affect lifting operations.

1, Loads with large surface areas may swing.

2, Increase/Decrease slew speed.

3, Put loads outside of working radius and ultimately close down lifting operations.

List SIX typical areas that should be covered in a site induction.

1, Access/Egress.

2, Accidents/ Near miss reporting.

3, Welfare facilities.

4, Emergency procedures.

5, Escape routes

6, Safety Signs

List SIX factors that must be taken into account by both machine operator and slinger if a suspended load is being travelled across a site.

1, Machine is authorised to travel across site.

2, Configured correctly.

3, Capable and within limits.

4, The route is clear from overhead hazards.

5, Ground is suitable.

6, Slinger has sufficient help.

The slinger has to use new lifting accessories that he is unfamiliar with, what do regulations (E.g LOLER 98) and other guidance require the slinger to have?

Slinger must have sufficient training, information and instruction.

When checking condition of lifting accessories why must gloves be worn?

1, To protect hands against sharp bits.

2, Prevent grease/oil from contaminating the load/accessory

3, Prevent skin disease.

What does the health and safety at work act require employers to do with regards specifically to plant?

Employers must provide plant that is safe to use and to maintain the plant so it does not pose a risk to anyones health.

What is the difference between a contract lift and a standard crane hire

CONTRACT LIFT: Crane company plans and supervises lifting operations

STANDARD CRANE HIRE: Crane and operator work to customers instruction via a lift plan.

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


DENSITY (Material type)

HOLLOW (Structure)

If attaching accessories to a quick hitch coupler of a machine such as an excavator, give TWO reasons why should the coupler be tilted in the downwards position?

To stop fouling of the accessory on the coupler because restriction of movement/bending can occur

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?

b) Who authorises any changes?

a) Work must STOP

b)Appointed person

a)What determines the minimum distances that any part of plant and machinery has to be kept from overhead electricity likes and b) Explain why a distance must be kept.

a) Voltage and type of support (metal/Wooden poles)

b) Electricity can ARC and jump across gaps.

What is regarded as the danger or hazard zone during a lifting operation?

The working radius and slew/travel area of lifting equipment boom/jib.

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

a) Maximum lifting capacity for any configuration as determined.


If guiding an item of lifting equipment undertaking pick-and-carry duties near an open trench which has a depth of 2 meters, what is the minimum distance to maintain?

4 Meters

(2x Distance to depth)

If the hook bock of a hoist-rope equipped lifting equipment accidentally lands, what is a possible consequence?

1, Could damage lifting equipment

2, Rope cross over

3, Rope alignment on pulleys.

On hoist rope-lifting equipment, how does the rope or line length affect load swings?

Longer line makes load swing slower.

a) What does the SWL as stamped on lifting accessories indicate?

b) what action should be taken if the SQL is not marked on a lifting accessory?

a) Maximum load that can be carried safely.

b) It should not be used (clearly marked as unusable)

On what type of load should a spreader beam be used?

Long loads.