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100+ Free NCCCO LBT Practice Questions

Pass your NCCCO Lattice Boom Truck Crane Operator (LBT) Written Examination exam on the first try — instant access, no signup required.

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2026 Statistics

Key Facts: NCCCO LBT Exam

90 questions

The NCCCO Mobile Crane Operator Core written exam has 90 multiple-choice questions

NCCCO Mobile Crane Operator Candidate Handbook (2024)

90 minutes

Time allowed for the 90-question Core written examination

NCCCO Mobile Crane Operator Candidate Handbook (2024)

26 questions

The Lattice Boom Truck (LBT) specialty written exam has 26 multiple-choice questions

NCCCO Mobile Crane Operator Candidate Handbook (2024)

60 minutes

Time allowed for each specialty written examination, including LBT

NCCCO Mobile Crane Operator Candidate Handbook (2024)

About 35%

Share of the specialty exam weighted to manufacturers' load charts

NCCCO Mobile Crane Operator Candidate Handbook (2024)

No calculators

Calculators are not permitted on the Core or specialty written exams

NCCCO Mobile Crane Operator Candidate Handbook (2024)

5 years

CCO Mobile Crane Operator certification is valid for five years before recertification

NCCCO Mobile Crane Operator Certification

Age 18+

Candidates must be at least 18 and meet CCO substance-abuse and ethics policies

NCCCO Mobile Crane Operator Candidate Handbook (2024)

The NCCCO Lattice Boom Truck (LBT) credential requires passing the Mobile Crane Operator Core written exam (90 questions, 90 minutes) plus the LBT specialty written exam (26 questions, 60 minutes), with no calculators permitted, and the corresponding practical exam within 12 months. The Core blueprint weights Site about 20%, Operations 26%, Technical Knowledge 28% and Load Charts 26%, while the specialty leans about 35% on manufacturers' load charts. Passing requires a scaled score equivalent to roughly 70%, and certification lasts five years. PPT written fees run about $180 for Core plus one specialty, or $75 for a specialty alone after the Core is passed. This 100-question bank gives original combined Core-plus-LBT practice covering load-chart and capacity calculations, setup and stability, assembly/disassembly, operations and OSHA 1926 Subpart CC safety.

Sample NCCCO LBT Practice Questions

Try these sample questions to test your NCCCO LBT exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1On a lattice boom truck crane load chart, what does the term 'gross capacity' represent?
A.The maximum total load the chart allows at a given configuration before any deductions
B.The weight of the load only, after all rigging is removed
C.The net weight the crane can place on the ground
D.The counterweight installed on the crane
Explanation: Gross capacity is the total rated load the chart lists for a given boom length, radius and configuration before deductions. Net capacity is found by subtracting the weights of the load block, hook ball, jib, slings and other attachments from gross capacity.
2A load chart lists a gross capacity of 40,000 lb at a 30 ft radius with 80 ft of boom. The load block weighs 800 lb, the hook ball weighs 200 lb, and slings weigh 150 lb. What is the maximum load weight that may be lifted?
A.40,000 lb
B.39,000 lb
C.38,850 lb
D.41,150 lb
Explanation: Net capacity equals gross capacity minus all attachment deductions: 40,000 - 800 - 200 - 150 = 38,850 lb. The load itself must not exceed this net value.
3On a lattice boom truck crane, capacities are typically GREATEST when the load is handled in which quadrant of operation?
A.Over the side
B.Over the front
C.Over the rear
D.Directly over an outrigger float
Explanation: Truck-mounted cranes are usually most stable and rated highest over the rear, where the counterweight provides the most resistance to tipping. Over-side ratings are typically the lowest because the tipping fulcrum is closest there.
4A range diagram on a lattice boom truck crane load chart is used primarily to determine:
A.The boom length and angle needed to reach a given radius and lift height
B.The wire rope breaking strength
C.The minimum approach distance to power lines
D.The ground bearing pressure under the outriggers
Explanation: A range diagram plots boom length, boom angle, operating radius and the resulting hook height. Operators use it to select a boom length and angle that reaches the load radius while providing adequate clearance and lift height.
5On a load chart, a heavy line or shaded boundary that separates the upper and lower portions of the capacity table most commonly indicates:
A.The point where capacities change from being limited by stability to being limited by structural strength
B.The maximum allowable wind speed
C.The boundary between on-rubber and on-outrigger ratings
D.The recommended lubrication interval
Explanation: Manufacturers usually mark the line where the governing limit changes between stability (tipping) and structural strength of the boom or machinery. Above that line capacities are typically structurally limited; below it they are stability limited.
6A capacity chart shows 22,000 lb at a 40 ft radius and 16,000 lb at a 50 ft radius for the same boom length. As radius increases at a constant boom length, capacity generally:
A.Increases
B.Decreases
C.Stays the same
D.Doubles
Explanation: As operating radius increases, the load's leverage about the tipping fulcrum grows, so rated capacity decreases. The chart confirms this: 22,000 lb at 40 ft drops to 16,000 lb at 50 ft.
7When a jib is erected on a lattice boom truck crane but is NOT being used to lift, how must its weight be treated on the main boom load chart?
A.It is ignored because it is not lifting
B.It must be deducted from the main boom capacity
C.It is added to the main boom capacity
D.It only matters if the jib exceeds 30 ft
Explanation: An erected jib, even when idle, adds weight and overturning moment to the boom tip, so its weight must be deducted from the main boom's rated capacity. Manufacturer notes specify the deduction for a stowed or erected jib.
8An over-rear on-outrigger chart lists 50,000 lb at 25 ft radius, while the over-side chart lists 30,000 lb at the same radius and boom length. An operator must swing a 35,000 lb load from over-rear to over-side. What is the correct conclusion?
A.The lift is allowed in both quadrants
B.The lift is allowed over-rear but NOT over-side
C.The lift is allowed over-side but not over-rear
D.The chart does not apply when swinging
Explanation: The load (35,000 lb) is within the over-rear rating (50,000 lb) but exceeds the over-side rating (30,000 lb). The operator must use the lowest capacity through the full swing arc, so the load may not be swung into the over-side quadrant.
9What does an on-outrigger load chart require regarding outrigger position?
A.Outriggers may be at any extension as long as floats touch the ground
B.Outriggers must generally be fully extended unless an intermediate-extension chart is provided
C.Outriggers must be retracted to reduce ground pressure
D.Outriggers are optional if the load is under 10,000 lb
Explanation: Standard on-outrigger charts assume outriggers are fully extended. Reduced or intermediate capacities apply only when the manufacturer publishes a separate partially-extended chart; otherwise the crane must be set up fully extended.
10A load weighs 18,000 lb. The load block weighs 600 lb and the rigging weighs 400 lb. To stay within a rated capacity, the chart's gross capacity at the planned radius must be at least:
A.17,000 lb
B.18,000 lb
C.19,000 lb
D.16,000 lb
Explanation: Total gross load equals the load plus all attachment weights: 18,000 + 600 + 400 = 19,000 lb. The chart's gross capacity must equal or exceed 19,000 lb at the planned radius.

About the NCCCO LBT Exam

The NCCCO Lattice Boom Truck Crane Operator (LBT) certification qualifies operators to run truck-mounted cranes that use a bolted lattice (not telescoping) boom supported on outriggers. To certify, candidates pass the Mobile Crane Operator Core written examination, the LBT specialty written examination and the matching practical examination within 12 months. The Core exam (90 questions, 90 minutes) covers Site, Operations, Technical Knowledge and Load Charts; the LBT specialty exam (26 questions, 60 minutes) is weighted heavily toward manufacturers' load charts plus lattice boom setup, assembly/disassembly and operations. Both written exams are multiple choice and prohibit calculators. Certification is valid for five years, after which recertification is required.

Assessment

Combined written requirement: a 90-question Core examination plus the 26-question Lattice Boom Truck (LBT) specialty examination, all multiple choice. This bank provides 100 original combined practice questions.

Time Limit

90 minutes for the Core examination and 60 minutes for the LBT specialty examination; calculators are not permitted on either written exam.

Passing Score

Pass/fail based on a scaled score equivalent to about 70%. Because scoring is scaled across forms, the exact number of correct answers required is not fixed.

Exam Fee

PPT written fees: Core plus one specialty $180; one specialty only after passing Core $75; additional specialties cost more and a $50 late fee may apply. Practical exam fees are separate. Confirm current amounts at nccco.org/examfees. (National Commission for the Certification of Crane Operators (NCCCO / CCO))

NCCCO LBT Exam Content Outline

30%

Load Charts and Capacity

Reading lattice-boom truck-crane rated-capacity charts by boom length, radius, quadrant (over-rear, over-side, 360 degrees) and outrigger position; range and work-area diagrams; gross versus net capacity; and deductions for the load block, hook ball, jib and other attachments. Includes calculation items.

20%

Setup and Stability

Outriggers fully versus partially extended, position indicators, ground bearing pressure, mats, blocking and cribbing, leveling, and the difference between capacities limited by stability and those limited by structural strength. Covers backward (rear) stability limits on rubber and the role of counterweight.

18%

Assembly and Disassembly

Lattice boom sections and inserts, jibs, gantry/mast, counterweight installation, and the assembly/disassembly (A/D) director's duties under OSHA 1926.1404. Covers pin and connection checks, blocking boom sections and erecting or lowering the boom safely.

16%

Operations

Travel on rubber and on outriggers, hoisting, swinging and placing loads smoothly, multi-part reeving and load-block selection, parts of line versus line pull, and reacting to changing conditions including wind and shock or side loading.

16%

Site Safety, Rigging, Signals and Regulations

Power-line minimum approach distances under OSHA 1926.1408, ground conditions, sling angles and rigging hardware capacity, wire rope inspection and replacement criteria, standard hand and voice signals, and OSHA 1926 Subpart CC and ASME B30.5 requirements.

How to Pass the NCCCO LBT Exam

What You Need to Know

  • Passing score: Pass/fail based on a scaled score equivalent to about 70%. Because scoring is scaled across forms, the exact number of correct answers required is not fixed.
  • Assessment: Combined written requirement: a 90-question Core examination plus the 26-question Lattice Boom Truck (LBT) specialty examination, all multiple choice. This bank provides 100 original combined practice questions.
  • Time limit: 90 minutes for the Core examination and 60 minutes for the LBT specialty examination; calculators are not permitted on either written exam.
  • Exam fee: PPT written fees: Core plus one specialty $180; one specialty only after passing Core $75; additional specialties cost more and a $50 late fee may apply. Practical exam fees are separate. Confirm current amounts at nccco.org/examfees.

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

NCCCO LBT Study Tips from Top Performers

1Master load-chart mechanics first: practice finding gross capacity by boom length and radius, then subtract deductions for the block, ball, jib and other attachments to reach net capacity.
2Always confirm the quadrant of operation; lattice boom truck cranes are usually rated highest over-rear and lowest over-side, so the same radius can have very different capacities.
3Distinguish stability-limited from structural-limited capacities on the chart, and watch the bold or shaded lines that mark where the limit changes.
4Practice load-chart math by hand because calculators are not permitted; rehearse percent-of-capacity and net-capacity subtractions until they are quick.
5Learn OSHA 1926 Subpart CC cold, especially the assembly/disassembly director role (1926.1404) and power-line minimum approach distances (1926.1408).
6Memorize wire rope and rigging fundamentals, including sling-angle tension increases, parts of line versus line pull, and wire rope removal-from-service criteria.

Frequently Asked Questions

How many questions are on the NCCCO Lattice Boom Truck written exams?

The Mobile Crane Operator Core examination has 90 multiple-choice questions and the Lattice Boom Truck (LBT) specialty examination has 26 multiple-choice questions, for 116 written questions in total.

How long do I get for the LBT written exams?

You have 90 minutes for the 90-question Core examination and 60 minutes for the 26-question LBT specialty examination. Calculators are not permitted on either written exam.

What score do I need to pass?

NCCCO uses scaled scoring set at the equivalent of about 70%. Because scores are scaled across exam forms, the exact number of correct answers needed varies, and results are reported as pass or fail.

Is the Core exam enough, or do I also need the LBT specialty?

You must pass both. Every candidate takes the Core written exam, and to certify on lattice boom truck cranes you also pass the LBT specialty written exam plus the corresponding practical exam within 12 months.

How is a lattice boom truck crane different from a telescopic crane?

A lattice boom truck crane is a truck-mounted carrier with a bolted, open-lattice boom built from sections and inserts rather than a telescoping hydraulic boom. The LBT specialty covers lattice assembly, disassembly and load charts unique to that design.

How long is NCCCO certification valid?

CCO Mobile Crane Operator certification is valid for five years. Recertification is completed during the final 12 months before expiration and may waive the practical exam for operators who document at least 1,000 hours of relevant experience.