MA 1A Hoisting questions well
answered already passed
Broken wires on standing rope - correct answer ✔✔2 broken wires in 1 lay beyond end
connections, more then 1 at end connection
Broken wires on rotation resistant wire rope - correct answer ✔✔2 broken wires in 6 rope
diameters
4 broken wires in 30 rope diameters
Any wire protruding from the core
Most common type of cable - correct answer ✔✔Right regular lay
Running rope safety factor - correct answer ✔✔3.5 to 1
Standing rope safety factor - correct answer ✔✔3 to 1
Rotation resistant rope safety factor - correct answer ✔✔5 to 1
Sling Safety factor - correct answer ✔✔5 to 1
Strongest to weakest hitch - correct answer ✔✔Basket, vertical, choker
Types of hitches - correct answer ✔✔Basket, Choker, Double basket, Double Choker
, Lower sling angle - correct answer ✔✔Greater tension - preferred angle 60 degrees
Minimum wraps on a drum - correct answer ✔✔2
More lays on a drum - correct answer ✔✔Line pull decreases
Eccentric Reeving - correct answer ✔✔Causes torsion on boom
Type of sling used when handling boom sections - correct answer ✔✔Synthetic slings
Center of gravity - correct answer ✔✔Below lowest point of attachment = stable load
Remove rigging from service when - correct answer ✔✔Kinking, crushing, bird caging had
occurred.
OSHA - 10 randomly distributed wires in 1 rope lay or 5 wires in 1 strand in 1 rope lay or 1 wire
protruding from the core
Outer wires are worn by 1/3 of its normal diameter
OSHA 1910.184 - correct answer ✔✔Sling hooks must be replaced if throat has opening more
than 15% of the original opening or twisted more than 10%
ASME B30.10 - correct answer ✔✔Sling & Crane Hooks must be replaced if wear exceeds 10%,
any bend or twist, throat opening exceeds 5% of original opening
Primary function of a jib extension - correct answer ✔✔Increase height
Who can give an emergency stop? - correct answer ✔✔Anyone in the lift area
answered already passed
Broken wires on standing rope - correct answer ✔✔2 broken wires in 1 lay beyond end
connections, more then 1 at end connection
Broken wires on rotation resistant wire rope - correct answer ✔✔2 broken wires in 6 rope
diameters
4 broken wires in 30 rope diameters
Any wire protruding from the core
Most common type of cable - correct answer ✔✔Right regular lay
Running rope safety factor - correct answer ✔✔3.5 to 1
Standing rope safety factor - correct answer ✔✔3 to 1
Rotation resistant rope safety factor - correct answer ✔✔5 to 1
Sling Safety factor - correct answer ✔✔5 to 1
Strongest to weakest hitch - correct answer ✔✔Basket, vertical, choker
Types of hitches - correct answer ✔✔Basket, Choker, Double basket, Double Choker
, Lower sling angle - correct answer ✔✔Greater tension - preferred angle 60 degrees
Minimum wraps on a drum - correct answer ✔✔2
More lays on a drum - correct answer ✔✔Line pull decreases
Eccentric Reeving - correct answer ✔✔Causes torsion on boom
Type of sling used when handling boom sections - correct answer ✔✔Synthetic slings
Center of gravity - correct answer ✔✔Below lowest point of attachment = stable load
Remove rigging from service when - correct answer ✔✔Kinking, crushing, bird caging had
occurred.
OSHA - 10 randomly distributed wires in 1 rope lay or 5 wires in 1 strand in 1 rope lay or 1 wire
protruding from the core
Outer wires are worn by 1/3 of its normal diameter
OSHA 1910.184 - correct answer ✔✔Sling hooks must be replaced if throat has opening more
than 15% of the original opening or twisted more than 10%
ASME B30.10 - correct answer ✔✔Sling & Crane Hooks must be replaced if wear exceeds 10%,
any bend or twist, throat opening exceeds 5% of original opening
Primary function of a jib extension - correct answer ✔✔Increase height
Who can give an emergency stop? - correct answer ✔✔Anyone in the lift area
