Millwright Flashcards
How to order wire rope
Length, dia, core and lay
Standard lay is
Right
Left lay is
Vertical lifts
Advantage to round sling
Low stretch
Chain is better than wire rope for.
Corrosion
Anchor for tuggers
Need to be strong
How many movements to eot
6
3 types of overload device for eot
Spring, leverage and electric
When work with crane what sign do you need
Wm
Safety device for stopping
Bumper and trolly stops
Other than daily check when do you inspect a crane overhead
Type and use indicates
Fiber web sling made from
Nylon and polyester
Mostly nylon
Synthetic web types
Triangle chocker, different loop Triangle end Double eye Return eye Endless grommet
Web sling do not?
Mark or scratch surface
Web slings are? Size
Wider the chain or rope
How to know when to trough away
Wear or damage has exposed red core
Where are chain I’d codes
On links usually 8 and 12’’ intervals
Minimum ultimate load
Minimum load that will break a new chain when uniform load is applied to straight chain in testing
Minimum ultimate loasq
What is WLL working load limit
Maximum load that can safely be applied to straight chain
Hook must be made from
Forged steel
Ohs states you can not lift a load
Grater than 20 % of ultimate break strength of weakest part
Boom truck
2 sets of stabilizers. Used for transporting equipment
Industrial crane
Low to ground can crab walk
Rough terrain crane
Some times known as cherry picker. Well suited for pick and carry
Carrier mounted telescopic
Has different types of boom and jib, jib is usually mounted to heel
Conventional
Mechanical raise and lower boom, made from structure pipe
Carrier mounted
Takes stress and strains well. Also known as truck, mobile and conventional
Crawler
Upper works, cab and counter weight mounted on track
If you don’t use load chart
U have to use on rubber load chart
Center of gravity
Is crane body and counter weight. Upper works
Crane leverage
Weight and distance between tipping point and load center of gravity
Center of gravity
Point in load where weight is concentrated
Purple k and reg dry and co
Bc
Foam
A and B
Wet chemical
K
Water
A
Size rating fire extinguishers
Ulc label
Whmis path
Suppliers, label,msds, employers education, student
2 Cat for ppe
Basic and specialized
Eye protection
Spectacles, goggles, welding helmet, hand shelids, hood, face shield, respiratory face peice
Structure of industry training
Lac- pac- Alberta aprentship training board, Minister of advanced education
Communication methods
Verbal, non verbal and written
Non verbal
Body language, facial expressions, gestures, posture, body movements
Words a receiver finds unfamiliar
Complex
