NCCCO Core Questions
Study online at https://quizlet.com/_9pffhu
1. The term "Superstructure or Upper works" refers to the area of the crane:: -
Above the swing circle
2. A crane must be level within _______% for the load chart ratings to be valid?: 1%
3. On what principle is crane stability based?: Leverage
4. What would be the effect of moving the tipping axis closer to the cranes
center of gravity?: Reduced stability
5. Which of the following matches the appropriate load chart to a particular
crane?: Serial number
6. A durable rating chart with legible letters and figures shall be provided with
each crane accessible to:: The operator at the controls
7. The lifting capacities listed in the load chart assume that:: The lift is to be performed
under ideal conditions
8. A "rough terrain" crane set up on outriggers that is based on 85% tipping
should have the tires:: Off the supporting surface
9. Load charts are based on stationary loads, which are also known as:: Static loads
10. The capacity in a mobile crane's load chart are based on either structural
limits or: Stability
11. The values listed in the manufacture's load chart show:: Rated capacities
12. Net capacity is:: Manufactures load ratings minus capacity deductions
13. When determining the "gross load" the best method is:: Get an accurate load weight
and add the rigging
14. The weights of load handling devices, such as load blocks, spreader bars,
and slings are considered:: Part of the load
15. Gross capacity is 10,300 Ibs total deductions are 7,622 lbs. What is the net
capacity?: 2,678 lbs.
16. Boom length is measured from the:: Center of the heel pin(s) to the center of the boom tip
sheaves
17. The boom angle indicator indicates the booms angle to the:: Horizontal
18. Load radius is defined as: the horizontal distance from the centerline of
rotation line with:: The rated load suspended
, NCCCO Core Questions
Study online at https://quizlet.com/_9pffhu
19. You are lifting a load directly under the hook. As you put tension on it, the
load lifts away from crane. What caused the increased in load radius as should
have been placed?: Boom deflection
20. A crane that is set up properly should have the tires off the supporting
surface and should be:: Sufficient to support the crane and the load
21. When a boom extension considered to be inits stowed position, it is:: Pinned to
the boom base section
22. Crawler cranes produce the least amount of ground pressure is over the:: Side
23. What is the best source of information for determining boom tip height?: -
Working range diagram
24. What is the purpose of a work area diagram (chart)?: To identify operational quadrants
25. Ona telescopic boom truck with outriggers properly positioned, the working
area chart will indicate "over front" area is:: Determined by the crane manufacturer
26. When the load radius falls between capacities listed in the load chart use the
gross capacity for the: Longer radius
27. When the boom angle falls between the capacities listed in the load chart
use the gross capacity for the: Lower boom angle
28. When load charts are between the values listed in the load chart, the value
that must be used is the:: Lower at a longer radius
29. A load moment indicator (LMI) is a computer installed on cranes designed
to: provide the operator with information regarding the boom length, boom
angle, boom tip height, working radius, rated load and a total calculated weight
being lifted by the crane. The LMI also warns an operator when an overloading
situation is about to occur.: True
30. . A crane operator plans to lift a gross load that weighs 26,300 Ibs. Based
solely on the line pull of the crane base 6,000 Ibs. what are the minimum parts
of line required to — make the lift?: Five
31. Backward stability on a truck mounted crane could be dangerous when the
crane is working on rubber, boom angle, minimum boom length:: Over the side at a
minimum radius
32. Hydraulic cranes shall be equipped with holding valves to prevent boom
lowering in the event of: Hydraulic Failure
Study online at https://quizlet.com/_9pffhu
1. The term "Superstructure or Upper works" refers to the area of the crane:: -
Above the swing circle
2. A crane must be level within _______% for the load chart ratings to be valid?: 1%
3. On what principle is crane stability based?: Leverage
4. What would be the effect of moving the tipping axis closer to the cranes
center of gravity?: Reduced stability
5. Which of the following matches the appropriate load chart to a particular
crane?: Serial number
6. A durable rating chart with legible letters and figures shall be provided with
each crane accessible to:: The operator at the controls
7. The lifting capacities listed in the load chart assume that:: The lift is to be performed
under ideal conditions
8. A "rough terrain" crane set up on outriggers that is based on 85% tipping
should have the tires:: Off the supporting surface
9. Load charts are based on stationary loads, which are also known as:: Static loads
10. The capacity in a mobile crane's load chart are based on either structural
limits or: Stability
11. The values listed in the manufacture's load chart show:: Rated capacities
12. Net capacity is:: Manufactures load ratings minus capacity deductions
13. When determining the "gross load" the best method is:: Get an accurate load weight
and add the rigging
14. The weights of load handling devices, such as load blocks, spreader bars,
and slings are considered:: Part of the load
15. Gross capacity is 10,300 Ibs total deductions are 7,622 lbs. What is the net
capacity?: 2,678 lbs.
16. Boom length is measured from the:: Center of the heel pin(s) to the center of the boom tip
sheaves
17. The boom angle indicator indicates the booms angle to the:: Horizontal
18. Load radius is defined as: the horizontal distance from the centerline of
rotation line with:: The rated load suspended
, NCCCO Core Questions
Study online at https://quizlet.com/_9pffhu
19. You are lifting a load directly under the hook. As you put tension on it, the
load lifts away from crane. What caused the increased in load radius as should
have been placed?: Boom deflection
20. A crane that is set up properly should have the tires off the supporting
surface and should be:: Sufficient to support the crane and the load
21. When a boom extension considered to be inits stowed position, it is:: Pinned to
the boom base section
22. Crawler cranes produce the least amount of ground pressure is over the:: Side
23. What is the best source of information for determining boom tip height?: -
Working range diagram
24. What is the purpose of a work area diagram (chart)?: To identify operational quadrants
25. Ona telescopic boom truck with outriggers properly positioned, the working
area chart will indicate "over front" area is:: Determined by the crane manufacturer
26. When the load radius falls between capacities listed in the load chart use the
gross capacity for the: Longer radius
27. When the boom angle falls between the capacities listed in the load chart
use the gross capacity for the: Lower boom angle
28. When load charts are between the values listed in the load chart, the value
that must be used is the:: Lower at a longer radius
29. A load moment indicator (LMI) is a computer installed on cranes designed
to: provide the operator with information regarding the boom length, boom
angle, boom tip height, working radius, rated load and a total calculated weight
being lifted by the crane. The LMI also warns an operator when an overloading
situation is about to occur.: True
30. . A crane operator plans to lift a gross load that weighs 26,300 Ibs. Based
solely on the line pull of the crane base 6,000 Ibs. what are the minimum parts
of line required to — make the lift?: Five
31. Backward stability on a truck mounted crane could be dangerous when the
crane is working on rubber, boom angle, minimum boom length:: Over the side at a
minimum radius
32. Hydraulic cranes shall be equipped with holding valves to prevent boom
lowering in the event of: Hydraulic Failure
