Question Answers Flashcards

(41 cards)

1
Q

When tipping a load, the centre of gravity of the machine changes.

A: How does this affect the dump truck and state two actions to avoid accidents.

A

1: weight moves further to the rear and higher making it more likely to tip over.

2: tip slowly and on level ground ( whenever possible)

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2
Q

When working in a confined area or space what danger can be present with an articulated dump truck with regard to steering?

A

Steering the pivoting part of the dump truck into obstructions/ objects/ hazards.

Crush zone

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3
Q

Why are plant operators generally regarded as safety critical workers?

A

Because your actions using the plant can cause serious/ significant/ severe Health and safety consequences or serious harm to themselves and others ( even death)

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4
Q

When working in a confined area or space, name three hazards that can occur?

A

Limited visibility
Proximity hazards
Excessive steering
Potential crush zone are defined and kept safe
Noise, dust, fumes

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5
Q

If setting up to work in a pedestrianised area, state three factors that need to be taken into account ?

A

Barriers for public safety
Exclusion zones
Machine movement
Enough room for materials
Noise, fume and dust

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6
Q

The operator has been asked to drive the machine onto a transporter/ trailer.

Who is responsible for the loading operations?

State four actions to be considered by the operator before loading commences?

A

A: the Transporter driver
B: trailer on level ground
Trailer in good condition
Ramp in good condition and set correctly
Overhead hazards
Positioning on trailer
Is ADT clean ( fit for travel)
Direction of travel onto trailer

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7
Q

The operator is asked to tip material into a new trench. State five different requirements that must be considered or implemented before tipping commences?

A

Authorisation or permit to tip
Ground conditions
Safe access and egress routes (routes to and from)
Proximity hazards
Stop block are in place
That no body is in the trench
Trench sides are supported/ shoring

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8
Q

If a load is to be tipped on a slope, what may happen if the load is tipped downhill and why?

A

The load could roll over the slope.

The weight transfer can cause the machine to tip over backwards due to the movement of the centre of the gravity.

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9
Q

What problems and hazards can soft ground cause to a loaded dump truck?

A

1:the machine can sink or get stuck

2:slow the speed of the truck

3:makes it difficult to drive through

4: the machine can tip over sideways

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10
Q

What should you do if the dump truck start gear hunting?

A

Select appropriate gear (1, 2, 3 etc) to prevent gear hunting.

If gear hunting does happen, move to the next lowest gear

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11
Q

For dump trucks equipped with compressed air for breaking
A ) why might they need routinely bleeding?
B) what is the recommended Safe working practice while carrying this out?

A

A) to avoid water freezing in the air lines
Drain any condensation following manufacturers instructions

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12
Q

Give two reasons why the dump truck operator should have an understanding of the type of spoil being transported ?

A

So you know where to tip it (segregation)

Can affect the way it is transported fluid or semi fluid materials may spill during travel slow speeds.

May stick in the skip when tipping.

Heavy or denser materials may exceed ADT weights limits with less pocket fills

May need to tip in a different location

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13
Q

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

A

Fines

Prison

Case dismissal

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14
Q

Apart from the operator, who else may need to use the machines operators manual

A

Fitters maintenance staff

Site agent

Lorry loader drivers

Planners

Supervisors

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15
Q

Name three ways that a plant operator can contribute in ensuring repeat business with the client or principal contractor?

A

Work safely and efficiently
Be on time attend work
Get on with fellow workers
Be polite
Follow health and safety guidelines
Be the employee you would employ

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16
Q

Give three possible reasons why dumptruck should not stray off the designated haul routes?

A

Could damage prepared or unspoiled ground

Could get stuck on soft ground

Could hit pedestrians

Damage underground services

Could hit overhead cables

Could hit oncoming traffic/other plants routes

Increase travel time from loading to tipping

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17
Q

An operator has been asked to transport materials from one side to another using the public highway for which the road traffic act applies.

What effect can this have on the activity?

A

Depending on classification of vehicle restrictions can apply in terms of

Distance travelled and weights restrictions

Licensing requirements: job has now become a carriage of goods with the dump truck becoming a LGV

ADT needs tax registration and correct license class for driver

Be legal and in good working order; lights, brakes, tires, mirrors, horn)

Not being able to legally carry a load

18
Q

What is the purpose of a method statement?

What is required of the operator?

A

A: A set of step-by-step instructions telling you how to do a job safely and efficiently

The operator must comply with the method statement

19
Q

When parking the machine at the end of the shift name three places where the dump truck should not be parked?

A

Side roads
Wet or soft ground
On a slope or a hill
Close to trenches or stockpile
Pedestrian routes
In front of the site entrance or exit gates

Fire exit or fire assembly point

20
Q

The operator has to use a new type of dump truck that they are unfamiliar with

What do regulations And other guidance required the operator to have

A

They need sufficient information

instruction

Training on the machine

21
Q

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

A

They must provide plant that is fit for purpose suitable to do the job
Be safe to use
Be well maintained

22
Q

Explain the difference between

An inter axle longitudinal

Transverse axle differential lock

A

Inter axel provide power to the other axles through the gearbox

Transverse axles provide each wheel with the same amount of power at the same time to prevent sliding on wet ground

23
Q

State two requirements of using a stop block or earth bank(berm) at a trench discharging point

A

Indicates the stopping point
The block/berm is sufficient height for the ADT tyres
To prevent the machine from overrunning into the trench

24
Q

What three main duties of the health and safety at work most employees follow

A

To take care of your own and others health and safety whilst at work

To comply with your employer on all health and safety guidelines (risk assessments and method statements)

Not to intentionally or recklessly interfere with anything that is to do with health and safety

25
Whenever possible, who should decide the positioning of the Dump truck for loading?
The digger operator or loading shovel operator
26
The function or job role of a dump truck operator when transporting load is to?
Transport load safely and efficiently from loading to tipping area
27
When travelling on wet clay, what effect does this have on the dump truck?
Tyre grip is reduced which makes the dump truck slide which could then cause loss of control of the dumper
28
The rear axles unit on most dump trucks pivot on the chassis Explain the reason for pivoting axles
Allows the rear wheels to grip and follow the terrain on uneven ground
29
What is the recommended Good/best practice in the activation of the exhaust brake?
The exhaust brake reinforces the engine breaking and is activated by releasing your foot of the accelerator pedal
30
On what conditions can the parking brake be used as an emergency one of brake? What should occur post use?
If the machine is running away and engine steering fails Brakes may need to be replaced Vehicle taken out of use and inspected by an authorised and competent person Props and bolts needs checking
31
What is the purpose of a risk assessment?
To identify any hazard to put control measures in place
32
If the operator has loaded the machine onto a transporter/trailer on behalf of the driver, state three actions that must be carried out before they leave the machine
Handbrake has been applied Key has been removed and the machine is isolated Windows closed and the doors locked All lights switched off ADT and components are in good position Chassis centralised to engage articulation bar (articulated chassis) Skip load and pressure removed The vehicle is in good, clean condition for travel
33
Name three ways in which an operator can minimise their impact upon the environment whilst using the machine
Use ADT efficiently Use biofuels Well maintained plant Lower engine speed Turn off when not in use No unnecessary trips
34
Why should tailgates not be fitted when transporting bulky or rock type materials?
Large rocks could jam/gets stuck in the tailgate when tipping Causing possible instability, the machine is more likely to tip over
35
If the machine is being travelled or working on the public highway, the road traffic act applies What type of license and which class should the operator hold? What is the minimum age allowed?
A full driving license approved license class B 21 years old for machines over 7 1/2 tonne 18 years old for machines under 7 1/2 tonne
36
On articulated dump trucks, steering is achieved by actuating a hydraulic ram(or Rams) which is controlled by turning the steering wheel. How does the engine supply oil flow? What happens to the steering when the engine stops?
By an engine driven hydraulic pump Limited or loss of steering
37
What are the advantages of using inclinometer whilst tipping?
Tells the operator, whether or not you are tipping on level ground or on a slope
38
What is? Good working practice regarding the use of the retarder pedal during travel ? What factors can affect the performance of the retarder?
Keep the retardation steady, lower speed, avoiding acceleration, using service brakes if needed, lower speed on approach to slope. Travel speed correct for incline, steepness of incline, amount of retardation applied, load in the skip
39
List six object areas that should be covered in a site induction
Tea brakes/launch First aiders/first aid box location Start/finish times Emergency/reporting procedures Risk assessments Welfare facilities Car parking Pedestrian walkways Fire assemble point
40
What is the purpose of a ROPS cab?
Minimise risk of injury to the operator in the event of a rollover Rollover protection structure
41
What is the minimum distance allowed near open trenches when travelling with a dump truck, and explain why?
More than the depth of the trench To prevent trench collapse