These sample questions are intended to convey something of the style and content of the Crane Operator Certification Program written examinations developed and administered by the National Commission for the Certification of Crane Operators (NCCCO). They are not actual test questions, nor do they attempt to address all of the areas of knowledge tested on the CCO certification examinations. Response to these questions is not necessarily an indication of performance on the CCO examinations.
(Note: N/A means Not Applicable)
Sample Item #1
| Configuration | Outriggers and Stabilizers Extended | Extension | Stowed |
| Counterweight | N/A | Ext. Off-set / Angle | N/A |
| Main Boom | 26-ft. | Block | Double Sheave, 4-parts of line |
| Main Boom Angle | N/A | Ball | N/A |
| Radius | 8-ft. | Rigging | 125-lb. |
| Other | Hose Reel Installed | Main Rope | 6x25 IWRC |
| Other | N/A | Aux. Rope | N/A |
What is the net capacity lifting off the main?
A. 22,930 lbs.
Incorrect, No deduct for rigging
B. 22,855 lbs.
Incorrect, No deduct for aux block
C. 23,025 lbs.
Incorrect, Deducted stowed jib for 48 ft. boom
D. 22,805 lbs.
Correct,
| Gross Capacity | 24,000 |
| Jib | 480 |
| Block | 350 |
| Hose Reel | 190 |
| Auxiliary Block | 50 |
| Rigging | 125 |
| Total Deducts | 1,195 |
| Net Capacity | 22,805 |
Sample Item #2
| Configuration | Outriggers and Stabilizers Extended | Extension | 40-ft Jib |
| Counterweight | N/A | Ext. Off-set / Angle | 0-degrees |
| Main Boom | 68-ft. | Block | N/A |
| Main Boom Angle | 69-degrees | Ball | 120-lb. |
| Radius | N/A | Rigging | 100-lb. |
| Other | Hose Reel Mounted | Main Rope | Rotation Resistant |
| Other | N/A | Aux. Rope | N/A |
What is the net capacity lifting off the jib?
A. 870 lbs.
Incorrect, No rigging deduct
B. 770 lbs.
Correct,
| Gross Capacity | 1,180 |
| Ball | 120 |
| Rigging | 100 |
| Hose Reel | 190 |
| Total Deducts | 410 |
| Net Capacity | 770 |
C. 960 lbs.
Incorrect, No hose reel deduct
D. 1,990 lbs.
Incorrect, Wrong chart, used 23 ft jib
Sample Item #3
| Configuration | Outriggers and Stabilizers Extended | Extension | 23-ft Jib |
| Counterweight | N/A | Ext. Off-set / Angle | N/A |
| Main Boom | 68-ft. | Block | N/A |
| Main Boom Angle | 60-degrees | Ball | Installed |
| Radius | N/A | Rigging | 75-lb. |
| Other | Hose Reel Installed | Main Rope | Rotation Resistant |
| Other | N/A | Aux. Rope | N/A |
What is the net capacity lifting off the jib?
A. 1,385 lbs.
Correct,
| Gross Capacity | 1,770 |
| Ball | 120 |
| Rigging | 75 |
| Hose Reel | 190 |
| Total Deducts | 385 |
| Net Capacity | 1,385 |
B. 1,770 lbs.
Incorrect, Gross capacity
C. 1,195 lbs.
Incorrect, Deducted jib
D. 1,165 lbs.
Incorrect, Wrong gross at 55 degree boom angle