Manitowoc LBC

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.

Sample Item #1

Configuration	Crawlers Extended	Extension	30-ft. jib
Counterweight	179,100-lb. + 44,000-lb.	Ext. Off-set / Angle	5-degrees
Main Boom	260-ft.	Block	N/A
Main Boom Angle	65-degrees	Ball	500-lb., 1-part of line
Radius	130-ft.	Rigging	150-lb.
Other	1,545-lb. Lifting Beam	Main Rope	N/A
Other	N/A	Aux. Rope	2-lb./ft.

Note: For line in use, deductions for wire rope length beneath boom/jib point shall be based on the boom/jib point-elevation column listed on the boom/jib capacity chart. Boom/jib point elevation shall be rounded to nearest whole number.

What is the net capacity when lifting off the jib?

Sample Item #2

Configuration	Crawlers Extended	Extension	30-ft. jib
Counterweight	179,000-lb. + 44,000-lb.	Ext. Off-set / Angle	5-degrees
Main Boom	190-ft.	Block	1,200-lb., 2-parts of line
Main Boom Angle	69.1-degrees	Ball	N/A
Radius	N/A	Rigging	150-lb.
Other	N/A	Main Rope	2-lb./ft.
Other	N/A	Aux. Rope	N/A

What is the net capacity when lifting from the main boom?

Sample Item #3

Configuration	Crawlers Extended	Extension	30-ft. jib
Counterweight	179,100-lb. + 44,000-lb.	Ext. Off-set / Angle	5-degrees
Main Boom	120-ft.	Block	2,175-lb., 4-parts of line
Main Boom Angle	58.3-degrees	Ball	500-lb., 1-part of line, 10-ft. below tip
Radius	N/A	Rigging	310-lb.
Other	N/A	Main Rope	2-lb./ft.
Other	N/A	Aux. Rope	2-lb./ft.

What is the net capacity when lifting off the main boom?