CCO Practice Test Questions with
Complete Solutions 2024/2025
Ways to level cran - ANSWERSPlumb bob method
Carpenter's level
Problems that arise from unlevel crane - ANSWERSSide-loading
Increased radius
Increase pressure on outriggers
Ways to determine minimum blocking area for outriggers - ANSWERS3x area of outrigger float
Crane capacity (tons) / 5
Thickness of cribbing? - ANSWERS4"
How is outrigger float affected when not 100% supported - ANSWERSReduced in capacity by 50%
When is float pad load or track pressure highest? - ANSWERSOver the corner. Picking over the corner is
always highest
What is the minimum distance one must set up crane from underground walls/holes?
What about with sandy loom? - ANSWERS1x depth = distance
1.5x depth = distance
How to determine gross load? - ANSWERSGet accurate load weight and add the rigging
Order of hitch strength, strongest to weakest? - ANSWERSBasket, Vertical, Choker
Complete Solutions 2024/2025
Ways to level cran - ANSWERSPlumb bob method
Carpenter's level
Problems that arise from unlevel crane - ANSWERSSide-loading
Increased radius
Increase pressure on outriggers
Ways to determine minimum blocking area for outriggers - ANSWERS3x area of outrigger float
Crane capacity (tons) / 5
Thickness of cribbing? - ANSWERS4"
How is outrigger float affected when not 100% supported - ANSWERSReduced in capacity by 50%
When is float pad load or track pressure highest? - ANSWERSOver the corner. Picking over the corner is
always highest
What is the minimum distance one must set up crane from underground walls/holes?
What about with sandy loom? - ANSWERS1x depth = distance
1.5x depth = distance
How to determine gross load? - ANSWERSGet accurate load weight and add the rigging
Order of hitch strength, strongest to weakest? - ANSWERSBasket, Vertical, Choker
