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

Link-Belt (Rough Terrain) - 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. Rated lifting capacities are based on correct reeving.Deductions must be made for excessive reeving. Any reeving over minimum required is considered excessive and must be accounted for when making lifts.

Sample Item #1

Configuration On Fully Extended Outriggers Extension 34-ft. Offset Fly Stowed
Counterweight Standard Ext. Off-set / Angle N/A
Main Boom Mode B, 95-ft. Block 40 Ton, 2-parts of line, 30-ft. below tip
Main Boom Angle N/A Ball N/A
Radius 83-ft. Rigging 75-lb.
Other N/A Main Rope 1-lb./ft.
Other N/A Aux. Rope N/A

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.   3,775 lb.
B.   3,705 lb.
C.   3,295 lb.
D.   3,675 lb.

Sample Item #2

Configuration On Fully Extended Outriggers Extension 34-ft. Offset Fly Stowed
Counterweight Standard Ext. Off-set / Angle N/A
Main Boom Mode B, 110-ft. Block 40 Ton, 4-parts of line
Main Boom Angle N/A Ball 8.5 Ton, 5-ft. below tip
Radius 60-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 front?

A.   12,500 lb.
B.   9,915 lb.
C.   9,315 lb.
D.   9,815 lb.

Answers to Link-Belt TLL sample questions.