LB LBT

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.

Configuration 1

Outriggers: Extended & set	Extension /Jib length: 50 ft
Counterweight: ABC + A	Extension /Jib angle: 15°
Tires: N/A	Block: 125 ton, 2,600 lbs
Crawlers: N/A	Headache Ball: 15 ton, 750 lbs
Main boom type, length: 210 ft	Rigging: 175 lbs
Main Boom angle: 73.2°	Wire rope (main boom): 7/8" Type N 4 part
Radius: 90 ft	Wire rope (extension/jib): 7/8" Type RB
Other: N/A

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

What is the net capacity off the Jib?

Configuration 2

Outriggers: Out	Extension /Jib length: 40 ft
Counterweight: ABC + A	Extension /Jib angle: 0° Offset
Tires: N/A	Block: N/A
Crawlers: N/A	Headache Ball: 800 lbs
Main boom type, length: 150 ft	Rigging: 100 lbs
Main Boom angle: N/A	Wire rope (main boom): N/A
Radius: 80 ft	Wire rope (extension/jib): 7/8", RB Rope
Other: N/A

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

What is the net capacity picking off the jib over the side?

Configuration 3

Outriggers: On	Extension /Jib length: N/A
Counterweight: AB + A	Extension /Jib angle: N/A
Tires: on rubber	Block: N/A
Crawlers: N/A	Headache Ball: 15 ton, 750 lbs
Main boom type, length: 160 ft	Rigging: 75 lbs
Main Boom angle: 61.2°	Wire rope (main boom):N/A
Radius: 80 ft	Wire rope (extension/jib): 7/8", Type N
Other: Lifting Beam 250 lbs

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

What is the net pick and carry capacity?