Excavator Licence NSW Full Questions
With Complete Solutions
What precautions must be taken when inspecting under a raised attachment? -
ANSWERSChocks, Blocks or safety bars must be used to prevent the raised bucket
from falling.
Name three defects to look for when inspecting the hydraulic system. - ANSWERSOil
leaks
Loose connections
Fractures or bulges in hoses
Splits
Bent piston rods
When should slings be inspected? - ANSWERSPrior to and after their use. (AS 1666.1)
What percentage wear in a shackle would cause it to be discarded? - ANSWERS10%
wear.
What action should you take with tracks that are loose? - ANSWERSHave the track
tension adjusted.
How would you know when the machine that you are operating should be serviced? -
ANSWERSBy the hour meter, manufacturer's recommendation and log book.
Why are you not permitted to join a chain sling with a bolt? - ANSWERSBecause the
bolt is not an approved joining method and it does not have a load rating.
What percentage of broken wires within a rope lay or eight diameters of a wire rope
sling would cause it to be discarded? - ANSWERS10%
List six defects that would condemn a flexible steel wire rope (FSWR) from safe use? -
ANSWERS• One broken wire immediately above or below a terminal or end fitting.
• Core collapse
• Corrosion
• Kinks
• Crushed
• Birdcaging
• Damaged splices
• 10% of broken wires in 8 diameter of rope
• Stretched
• Affected by heat
, • Knotted
List six defects that would condemn a lifting chain and hook from safe use? -
ANSWERS• Cracks in links
• Over 10% wear
• Over 10% elongation
• Over 5% wear or stretch in throat of hook
• Over 10% wear in bite hook
• Twisted or damaged links
• No SWL tag
• Rusted
• Chain or hook affected by heat
• Spot welded links
What must you do if the SWL tag is missing from the chain sling? ** - ANSWERSCheck
for grade marking and calculate WLL, on completion of use, return it to the
manufacturer for SWL tagging
How do you do you fill machine tyres with water ballast? - ANSWERSWheel jacked up
with the valve at the top of the wheel, fill with water to manufacturer's specifications, add
antifreeze if required and then add air pressure.
What defects would you look for when carrying out the external check on the bucket of
an excavator? - ANSWERSWorn or missing teeth or a worn cutting edge and other
damage to the actual bucket and bucket pivot pins.
What defects would you look for on the hydraulic rams and hydraulic pressu re hoses? -
ANSWERSLeaks from seals, spilt or fractured hoses, and bent or damaged rams.
When would you check the excavator transmission fluid? - ANSWERSWhen the
transmission is cold or after the transmission is hot and as per the manufacturer's
specifications.
What checks would you conduct on the tracks of an excavator? - ANSWERSCheck for
any visual damage to the track and the track tension
How would you check the tension on the tracks of an excavator? - ANSWERSBy
placing a straight edge on the track from the roller to the driver wheel and measuring
the distance from the straight edge to the track.
What is the minimum and the maximum track sag allowable? - ANSWERSNot less than
2.5cm or more than 3.8cm.
How would you find out the correct track sag or tension for a specific machine? -
ANSWERSFrom the manufacturer's manual
With Complete Solutions
What precautions must be taken when inspecting under a raised attachment? -
ANSWERSChocks, Blocks or safety bars must be used to prevent the raised bucket
from falling.
Name three defects to look for when inspecting the hydraulic system. - ANSWERSOil
leaks
Loose connections
Fractures or bulges in hoses
Splits
Bent piston rods
When should slings be inspected? - ANSWERSPrior to and after their use. (AS 1666.1)
What percentage wear in a shackle would cause it to be discarded? - ANSWERS10%
wear.
What action should you take with tracks that are loose? - ANSWERSHave the track
tension adjusted.
How would you know when the machine that you are operating should be serviced? -
ANSWERSBy the hour meter, manufacturer's recommendation and log book.
Why are you not permitted to join a chain sling with a bolt? - ANSWERSBecause the
bolt is not an approved joining method and it does not have a load rating.
What percentage of broken wires within a rope lay or eight diameters of a wire rope
sling would cause it to be discarded? - ANSWERS10%
List six defects that would condemn a flexible steel wire rope (FSWR) from safe use? -
ANSWERS• One broken wire immediately above or below a terminal or end fitting.
• Core collapse
• Corrosion
• Kinks
• Crushed
• Birdcaging
• Damaged splices
• 10% of broken wires in 8 diameter of rope
• Stretched
• Affected by heat
, • Knotted
List six defects that would condemn a lifting chain and hook from safe use? -
ANSWERS• Cracks in links
• Over 10% wear
• Over 10% elongation
• Over 5% wear or stretch in throat of hook
• Over 10% wear in bite hook
• Twisted or damaged links
• No SWL tag
• Rusted
• Chain or hook affected by heat
• Spot welded links
What must you do if the SWL tag is missing from the chain sling? ** - ANSWERSCheck
for grade marking and calculate WLL, on completion of use, return it to the
manufacturer for SWL tagging
How do you do you fill machine tyres with water ballast? - ANSWERSWheel jacked up
with the valve at the top of the wheel, fill with water to manufacturer's specifications, add
antifreeze if required and then add air pressure.
What defects would you look for when carrying out the external check on the bucket of
an excavator? - ANSWERSWorn or missing teeth or a worn cutting edge and other
damage to the actual bucket and bucket pivot pins.
What defects would you look for on the hydraulic rams and hydraulic pressu re hoses? -
ANSWERSLeaks from seals, spilt or fractured hoses, and bent or damaged rams.
When would you check the excavator transmission fluid? - ANSWERSWhen the
transmission is cold or after the transmission is hot and as per the manufacturer's
specifications.
What checks would you conduct on the tracks of an excavator? - ANSWERSCheck for
any visual damage to the track and the track tension
How would you check the tension on the tracks of an excavator? - ANSWERSBy
placing a straight edge on the track from the roller to the driver wheel and measuring
the distance from the straight edge to the track.
What is the minimum and the maximum track sag allowable? - ANSWERSNot less than
2.5cm or more than 3.8cm.
How would you find out the correct track sag or tension for a specific machine? -
ANSWERSFrom the manufacturer's manual
