Rigging practices
1. A load chart range diagram can best be used to help identify:: net capacity
2. for mobile crane working at maximum radius, exceeding what percentageof the cranes capacity requires the radius to
be verified?: 80%
3. the minimum depth of thread engagement for a 1/2 in eyebolt into steelobject is?: 3/4 in
4. when tying knots in synthetic rope lashing, the rated load is increased by50% ?: false
5. the size of shackle that can be used in the eye of a wire rope sling must be
the wire rope size?: equal to or greater than
6. a shackle must be marked with the rated load, re-inspected due date, andthe date manufacture?: false
7. when working near energized power lines where the crane or load could cross the absolute limit of approach, what
additional requirements must thecrane team follow?: designated spotter must be stationed to watch clearances
8. the load weight of a personnel lift must not exceed of the hoists ratedcapacity for
the working radius ?: (50%)
9. a manufacturer's certificate of proof test may satisfy the initial test require-ments for rigging equipment?: false
10. which of the following operator actions will most likely cause a reductionin the capacity of a mobile crane?: booming
down
11. an angular pull of 45 degrees is allowed on non shouldered type eyebolts?: false
12. two slings creating a 60 degree sling angle are used to lift a 4,000 pounditem. the appropriate rated load for each
sling is 2,000 pounds.: false
13. when are loads allowed to be moved over personnel?: never
14. given a 1/2 in steel walled empty cylindrical tank that is opened at one end, calculate its weight (round answer to the
nearest hundred): 1800 lbs
15. a crane accident occurs when any one of the elements in the crane operat- ing envelope fails to perform correctly during
crane operations, maintenance,or testing, which results in any of the following except:: over rigging the load
16. a straight-line hitch is good for of a sling rated load?: 100%
17. there are three slings hanging from a hook. each sling has a rated capacity of 2,000 lbs. what is the heaviest load that could
be lifted using these slings ifthey were attached to a single point: 2000 lbs
18. why must hoisting be stopped once the load is completely off the ground?-
: to determine sling angle stress
19. the minimum crane team consist of ?: the crane operator and rigger-in-charge
20. while traveling a crane with a load, loads should be kept?: as low as possible
21. attachment points must be visually inspected?: before and after each use
1/4
1. A load chart range diagram can best be used to help identify:: net capacity
2. for mobile crane working at maximum radius, exceeding what percentageof the cranes capacity requires the radius to
be verified?: 80%
3. the minimum depth of thread engagement for a 1/2 in eyebolt into steelobject is?: 3/4 in
4. when tying knots in synthetic rope lashing, the rated load is increased by50% ?: false
5. the size of shackle that can be used in the eye of a wire rope sling must be
the wire rope size?: equal to or greater than
6. a shackle must be marked with the rated load, re-inspected due date, andthe date manufacture?: false
7. when working near energized power lines where the crane or load could cross the absolute limit of approach, what
additional requirements must thecrane team follow?: designated spotter must be stationed to watch clearances
8. the load weight of a personnel lift must not exceed of the hoists ratedcapacity for
the working radius ?: (50%)
9. a manufacturer's certificate of proof test may satisfy the initial test require-ments for rigging equipment?: false
10. which of the following operator actions will most likely cause a reductionin the capacity of a mobile crane?: booming
down
11. an angular pull of 45 degrees is allowed on non shouldered type eyebolts?: false
12. two slings creating a 60 degree sling angle are used to lift a 4,000 pounditem. the appropriate rated load for each
sling is 2,000 pounds.: false
13. when are loads allowed to be moved over personnel?: never
14. given a 1/2 in steel walled empty cylindrical tank that is opened at one end, calculate its weight (round answer to the
nearest hundred): 1800 lbs
15. a crane accident occurs when any one of the elements in the crane operat- ing envelope fails to perform correctly during
crane operations, maintenance,or testing, which results in any of the following except:: over rigging the load
16. a straight-line hitch is good for of a sling rated load?: 100%
17. there are three slings hanging from a hook. each sling has a rated capacity of 2,000 lbs. what is the heaviest load that could
be lifted using these slings ifthey were attached to a single point: 2000 lbs
18. why must hoisting be stopped once the load is completely off the ground?-
: to determine sling angle stress
19. the minimum crane team consist of ?: the crane operator and rigger-in-charge
20. while traveling a crane with a load, loads should be kept?: as low as possible
21. attachment points must be visually inspected?: before and after each use
1/4
