National Commission for the
Certification of Crane Operators
Committed to Quality, Integrity, and Fairness in Testing since 1995

CERTIFICATIONS

Mobile Crane Operator

Written Exam - Sample Questions

Grove (Truck Mount) - Telescopic Boom Crane-Swing Cab (TLL)

These sample questions are intended to convey something of the style and content of the National Operator Certification Program examination 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 examination. Response to these questions is not necessarily an indication of performance on the CCO examinations.

For testing purposes, the following notes apply:

  1. “N/A” means “Not Applicable.”
  2. The gross capacity is the maximum allowable crane loading as determined by the load rating chart and/or any other applicable limitation(s). Limitations may include, but are not limited to: line pull, parts of line, rope type, hoisting point, etc.
  3. When more than the minimum required hoist reeving is used, the additional rope weight shall be considered part of the load to be handled.

Sample Item #1

Configuration On Outriggers Fully Extended Extension N/A
Counterweight 7,800-lb. Removable Ext. Off-set / Angle N/A
Main Boom 70-ft. Block 15 Ton, 1 Sheave, 2-parts of line
Main Boom Angle N/A Ball 7.5 Ton, 10-ft. below tip
Radius 50-ft. Rigging 250-lb.
Other Auxiliary Boom Head Main Rope 1-lb./ft.
Other N/A Aux. Rope 1-lb./ft.

Note: For line in use, when wire rope deductions are required, the wire rope length will be measured from the boom tip to the ground.

What is the net capacity lifting off the main over the side?

A.   10,329 lb.
B.   10,422 lb.
C.   10,779 lb.
D.   10,279 lb.

Sample Item #2

Configuration On Outriggers Fully Extended Extension Fixed Extension Stowed
Counterweight 7,800-lb. Removable Ext. Off-set / Angle N/A
Main Boom 70-ft. Block 15 Ton, 1 Sheave, 2-parts of line
Main Boom Angle N/A Ball 7.5 Ton, 10-ft. below tip
Radius 49-ft. Rigging 150-lb.
Other Auxiliary Boom Head Main Rope 1-lb./ft.
Other N/A Aux. Rope 1-lb./ft.

Note: For line in use, when wire rope deductions are required, the wire rope length will be measured from the boom tip to the ground.

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

A.   10,262 lb.
B.   12,312 lb.
C.   10,112 lb.
D.   10,162 lb.

Sample Item #3

Configuration On Outriggers Fully Extended Extension Fixed Extension Stowed
Counterweight 7,800-lb. Removable Ext. Off-set / Angle N/A
Main Boom 68-ft. Block 15 Ton, 1 Sheave, 2-parts of line
Main Boom Angle N/A Ball 7.5 Ton, 10-ft. below tip
Radius 44-ft. Rigging 125-lb.
Other Auxiliary Boom Head Main Rope 1-lb./ft.
Other N/A Aux. Rope 1-lb./ft.

Note: For line in use, when wire rope deductions are required, the wire rope length will be measured from the boom tip to the ground.

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

A.   12,061 lb.
B.   12,017 lb.
C.   12,087 lb.
D.   12,337 lb.