Theory 1 Flashcards
Why are plant operators generally regarded as ‘safety-critical’ workers?
Type of work I do if done reckless or careless can affect the safety of myself and other people on site.. also causing needless damage
With regards to lifting accessories which 3 factors should be checked before using?
1- they are in good condition
2- they are suitable for the work
3- they have current examination certificates
Accessories must only be attached to manufacturer’s approved lifting points. If not followed the 3 consequences would be as follows.
1-Alternate lift points
CATS can detect a variety of buried services. What type of material are they limited in locating?
Plastic / Pot services / Fibre optics
If a hook is fitted to the machine for lifting purposes what must be checked before use?
1- secured with shackle and safety clip in good condition
2- hook should be able to freely rotate
3-check it’s SWL and test certificate
If both travel levers/pedals on are pushed forward when the track or wheels are in front of the cab which way would machine travel?
Backwards
Machine has a 2.5m long dipper what’s max lift weight at 6m radius and a 3m load in height.
2.25 tonnes
If a longer dipper is fitted what effect does that have on the lifting capacity ?
Lifting capacity is reduced
If operator needs to top up the hydraulic fuel. State two precautions to ensure cleanliness of the system
1- clean the cap and surrounding area so that dirt does not drop in when you remove the cap using clean equipment only.
Give 3 reasons why an oversized bucket should not be used when excavating trenches to specification ?
1- may not excavate to width specification
2-extra expense when backfilling or pouring concrete
3-time consuming also may affect machine stability
When excavating a new trench state 5 requirements to be considered and implemented before work begins?
1- access / egress to digging area 2-room to slew and manoeuvre 3-overhead and underground services 4-permit to dig / method statement 5- access for dumpers and other people in area
When fitting and using a new bucket using quick hitch coupler they are unfamiliar with what regulations (PUWER 98) and other guidance require operator to have?
Information and training
Explain all visual checks to be carried out on all quick hitch / bucket attachment systems before use?
1- no damage to coupler or leaks from hoses
Recommended minimum distance to keep from OLE and why?
1- 9m from furthest point of bucket with boom fully extended.
2- electricity can jump into objects especially in wet or damp conditions
When parking machine at end of shift name 3 places you should not park?
1- blocking access or exit to site or building
2-
Why should different soils be segregated when excavating?
To be reused save expense of buying in backfill. If reinstating material can be easily built up in correct order
How can a card or qualification benefit a plant operator?
Proof of skills and easier to get a job
If the machines rated capacity chart is not available for reference what other method can be used to determine machines lifting capacity ?
You must not use any other method except for data from manufacturer.
Why should long loads be lifted using a swivel type lifting accessory ?
Load can be manoeuvred more easily and safely also position loads safely using the full radius of the machine
Give 2 reasons why wherever possible operators should excavate the ground in layers?
1- to minimise digging up or damaging services
2- prevents the sides of trench being damaged / spilling excess material out bucket
Also helps excavate in straight lines more efficient loading of bucket.
Where should the excavators operators be kept and why
In the machine so if I need any Information I can get to it.
In what situation does a hard hat not need to be worn when operating a 360 excavator?
When sitting in a fully enclosed cab that is certified to protect me from falling objects known as a FOPS cab
What is the nearest distance allowed to gas pipes when excavating with the machine?
0.5 metres
What is the nearest distance allowed to gas pipes when excavating with the machine?
0.5 metres