Theory 1

Question 1

Why are plant operators generally regarded as ‘safety-critical’ workers?

Answer 1

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

Question 2

With regards to lifting accessories which 3 factors should be checked before using?

Answer 2

1- they are in good condition
2- they are suitable for the work
3- they have current examination certificates

Question 3

Accessories must only be attached to manufacturer’s approved lifting points. If not followed the 3 consequences would be as follows.

Answer 3

1-Alternate lift points

Question 4

CATS can detect a variety of buried services. What type of material are they limited in locating?

Answer 4

Plastic / Pot services / Fibre optics

Question 5

If a hook is fitted to the machine for lifting purposes what must be checked before use?

Answer 5

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

Question 6

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?

Answer 6

Backwards

Question 7

Machine has a 2.5m long dipper what’s max lift weight at 6m radius and a 3m load in height.

Answer 7

2.25 tonnes

Question 8

If a longer dipper is fitted what effect does that have on the lifting capacity ?

Answer 8

Lifting capacity is reduced

Question 9

If operator needs to top up the hydraulic fuel. State two precautions to ensure cleanliness of the system

Answer 9

1- clean the cap and surrounding area so that dirt does not drop in when you remove the cap using clean equipment only.

Question 10

Give 3 reasons why an oversized bucket should not be used when excavating trenches to specification ?

Answer 10

1- may not excavate to width specification
2-extra expense when backfilling or pouring concrete
3-time consuming also may affect machine stability

Question 11

When excavating a new trench state 5 requirements to be considered and implemented before work begins?

Answer 11

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

Question 12

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?

Answer 12

Information and training

Question 13

Explain all visual checks to be carried out on all quick hitch / bucket attachment systems before use?

Answer 13

1- no damage to coupler or leaks from hoses

Question 14

Recommended minimum distance to keep from OLE and why?

Answer 14

1- 9m from furthest point of bucket with boom fully extended.
2- electricity can jump into objects especially in wet or damp conditions

Question 15

When parking machine at end of shift name 3 places you should not park?

Answer 15

1- blocking access or exit to site or building

2-

Question 16

Why should different soils be segregated when excavating?

Answer 16

To be reused save expense of buying in backfill. If reinstating material can be easily built up in correct order

Question 17

How can a card or qualification benefit a plant operator?

Answer 17

Proof of skills and easier to get a job

Question 18

If the machines rated capacity chart is not available for reference what other method can be used to determine machines lifting capacity ?

Answer 18

You must not use any other method except for data from manufacturer.

Question 19

Why should long loads be lifted using a swivel type lifting accessory ?

Answer 19

Load can be manoeuvred more easily and safely also position loads safely using the full radius of the machine

Question 20

Give 2 reasons why wherever possible operators should excavate the ground in layers?

Answer 20

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.

Question 21

Where should the excavators operators be kept and why

Answer 21

In the machine so if I need any Information I can get to it.

Question 22

In what situation does a hard hat not need to be worn when operating a 360 excavator?

Answer 22

When sitting in a fully enclosed cab that is certified to protect me from falling objects known as a FOPS cab

Question 23

What is the nearest distance allowed to gas pipes when excavating with the machine?

Answer 23

0.5 metres

Question 24

What is the nearest distance allowed to gas pipes when excavating with the machine?

Answer 24

0.5 metres