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CERTIFICATION PROGRAMS

Mobile Crane Operator

Written Exam - Telescopic Boom Crane-Fixed Cab (TSS) 

Shuttlelift (Carry Deck)

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.

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. 

Sample Question # 1

Configuration Outriggers Retraced and Down Extension Stowed
Counterweight N/A Ext. Off-set / Angle N/A
Main Boom 59-ft. Block Installed, 4-parts of line
Main Boom Angle N/A Ball N/A
Radius 33-ft. Rigging 25-lb.
Other N/A Main Rope 6 x 19 XIPS IWRC
Other N/A Aux. Rope N/A

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

A.   2,090 lb.

Correct,

Gross Capacity

2,590
Block 475
Rigging 25
Total Deducts 500
Net Capacity 2,090

B.   2,580 lb.

Incorrect; wrong radius at 31.5 ft.

C.  1,590 lb.

Incorrect; deducted weight of erected jib

D.  8,980 lb.

Incorrect; used outrigger extended and down chart

Sample Question # 2

Configuration Outriggers Extended and Down Extension Stowed
Counterweight N/A Ext. Off-set / Angle N/A
Main Boom 47-ft. Block N/A
Main Boom Angle N/A Ball Installed
Radius 26-ft. Rigging 50-lb.
Other N/A Main Rope 6 x 19 XIPS IWRC
Other N/A Aux. Rope N/A

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

A.   14,700 lb.

Incorrect; used rated capacity in chart; did not take line pull into consideration

B.   4,300 lb.

Incorrect; used outriggers retracted and down 360 chart

C.  12,350 lb.

Correct,
Gross Capacity 12,500 (line pull restriction)
Ball 100
Rigging 50
Total Deducts 150
Net Capacity 12,350

D.  12,900 lb.

Incorrect; wrong radius at 28 ft.

Sample Question # 3

Configuration Outriggers Extended and Down Extension 17-ft. Jib
Counterweight N/A Ext. Offset/Angle 15-deg.
Main Boom 55-ft. Block N/A
Main Boom Angle 26-deg. Ball Installed
Radius N/A Rigging 20-lb.
Other 250-lb. lifting device
Main Rope 6 x 19 XIPS IWRC
Other N/A Aux. Rope N/A

What is the net capacity when lifting off the jib over the side?

A.  1,350 lb.

Incorrect; wrong boom length at >55-ft.

B.  1,710 lb.

Incorrect; wrong boom angle at 30-deg.

C.  1,930 lb.

Incorrect; wrong offset angle at 0-deg.

D.  1,680 lb.

Correct,
Gross Capacity 2,050
Lifting Device 250
Ball 100
Rigging 20
Total Deducts 370
Net Capacity 1,680