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100+ Free NCCCO Boom Truck Practice Questions

Pass your NCCCO Boom Truck Crane Operator Written Examination (Fixed Cab BTF / Swing Cab BTL) exam on the first try — instant access, no signup required.

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2026 Statistics

Key Facts: NCCCO Boom Truck Exam

90 questions

The NCCCO Core written examination has 90 multiple-choice questions in 90 minutes

NCCCO Mobile Crane Operator Candidate Handbook

26 questions

Each NCCCO specialty written exam, including Boom Truck, has 26 questions in 60 minutes

NCCCO Mobile Crane Operator Candidate Handbook

~35% load charts

Manufacturers' load charts make up roughly 35 percent of the Boom Truck specialty exam

NCCCO Mobile Crane Operator Candidate Handbook

~26% load charts

Manufacturers' load charts make up about 26 percent of the Core examination

NCCCO Mobile Crane Operator Candidate Handbook

5 years

NCCCO crane operator certification is valid for five years before recertification

NCCCO Mobile Crane Operator Candidate Handbook

$250 CBT

Computer-based fee for the Core plus one specialty written examination

NCCCO Mobile Crane Operator Candidate Handbook

1926 Subpart CC

OSHA's Cranes and Derricks in Construction standard underpins the exam

OSHA 29 CFR 1926 Subpart CC

100

Free original combined Core-plus-Boom-Truck practice questions here

OpenExamPrep

The NCCCO Boom Truck Crane Operator certification requires passing the Core written exam (90 multiple-choice questions, 90 minutes) plus the Boom Truck specialty written exam (26 questions, 60 minutes), then a practical exam. Boom Truck has Fixed Cab (BTF) and Swing Cab (BTL) designations for cranes mounted on a commercial truck chassis. Load-chart and net-capacity calculation is the single largest topic (about 26% of the Core and 35% of the specialty), followed by setup and stability, operations, site safety and rigging. The program is grounded in OSHA 1926 Subpart CC and ASME B30.5, and certification is valid for five years. This 100-question bank provides original combined Core-plus-Boom-Truck practice, including load-chart deduction problems.

Sample NCCCO Boom Truck Practice Questions

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

1On a boom truck load chart, the gross capacity at a 30-foot radius with 60 feet of main boom is listed as 8,500 lb. The hook block weighs 300 lb, the headache ball weighs 150 lb, and the rigging weighs 250 lb. What is the net capacity available for the load?
A.7,800 lb
B.8,500 lb
C.8,200 lb
D.7,500 lb
Explanation: Net capacity equals gross capacity minus all deductions that hang below the boom tip. Subtract the block (300), ball (150) and rigging (250) = 700 lb of deductions; 8,500 - 700 = 7,800 lb.
2When a stowed (un-erected) jib or boom extension is mounted on the side of the main boom, the load chart usually requires the operator to:
A.Add the jib weight to the rated capacity
B.Deduct for the stowed jib because it reduces main-boom capacity
C.Ignore it because it is not in use
D.Use the on-rubber chart instead
Explanation: A stowed jib or extension adds weight and stress to the boom even when it is not erected, so most charts include a deduction from main-boom capacity when an offsettable jib is mounted but not used. The chart notes specify the required deduction.
3On a load chart, the working radius is measured as the horizontal distance from the:
A.Boom tip to the load
B.Center of rotation to the center of the suspended load
C.Front outrigger to the load
D.Operator's cab to the load
Explanation: Working radius is the horizontal distance from the crane's center of rotation (axis of the turntable) to the vertical centerline of the freely suspended load. Capacity decreases as this radius increases.
4A load chart shows capacities of 12,000 lb at 25 ft radius and 9,000 lb at 30 ft radius for the same boom length. As the radius increases at a fixed boom length, the boom angle and capacity:
A.Angle decreases and capacity decreases
B.Angle increases and capacity increases
C.Angle decreases and capacity increases
D.Angle increases and capacity decreases
Explanation: For a fixed boom length, increasing the radius means lowering the boom, so the boom angle decreases. Moving the load farther from the center of rotation increases the overturning moment, so rated capacity decreases.
5A boom truck is rigged with a two-part line. The hook block is rated for the load, and each part of line is rated at 5,000 lb. Ignoring block efficiency, the maximum load the reeving can support is:
A.5,000 lb
B.10,000 lb
C.2,500 lb
D.7,500 lb
Explanation: With two parts of line, the load is shared by two supporting rope parts. 2 parts x 5,000 lb per part = 10,000 lb of line capacity. Final lifting capacity is still limited by the load chart and block rating.
6A boom truck load chart has a bold or shaded line separating upper values from lower values. Values below this line are typically limited by:
A.Structural strength of the crane
B.Stability (tipping)
C.Wire rope strength only
D.Engine power
Explanation: On many charts a heavy line divides the ratings: values above the line are limited by the crane's structural strength, and values below the line are limited by stability, meaning the crane would tip before the structure fails. Operators must respect both limits.
7Rated capacities shown in a manufacturer's load chart for a mobile crane are based on the crane being:
A.Level within 1% of grade and on a firm supporting surface
B.On any reasonably flat surface
C.Tilted up to 5 degrees toward the load
D.On rubber at all times
Explanation: Load charts assume the crane is level (typically within 1 percent of grade, about half a degree) on a firm supporting surface, with the stated outrigger or tire configuration. Operating out of level sharply reduces real capacity and increases tipping risk.
8A boom truck must lift a 6,000 lb load at a 35-foot radius. The chart shows 7,200 lb available at that radius and boom length. Required deductions total 900 lb (block, ball, slings). Is the lift within capacity?
A.Yes, net capacity is 6,300 lb which exceeds 6,000 lb
B.No, the gross capacity is below the load
C.No, deductions make it 6,300 lb which is below the load
D.Yes, but only if the load is reduced to 5,000 lb
Explanation: Net capacity = 7,200 - 900 = 6,300 lb. The 6,000 lb load is less than the 6,300 lb net capacity, so the lift is within the chart rating. The operator should still verify radius, level and outrigger configuration.
9On a load chart, the column headings usually represent radius and the row entries usually represent:
A.Wind speed
B.Boom length
C.Operator weight
D.Counterweight color
Explanation: A typical mobile crane capacity table lists working radius across the top and boom length (or boom length plus jib configuration) down the side, with the rated capacity at the intersection. The operator finds the value where the correct radius and boom length meet.
10When the load weight falls between two radius values listed on the chart, the operator should use the capacity for the:
A.Shorter radius
B.Next longer (greater) radius
C.Average of the two
D.Lower boom angle row
Explanation: When the actual radius is between two listed radii, the operator must read the capacity at the next greater (longer) radius, which is the more conservative, lower value. Never interpolate upward to a higher capacity.

About the NCCCO Boom Truck Exam

The NCCCO Boom Truck Crane Operator certification covers truck-mounted hydraulic cranes mounted on a commercial truck chassis (behind-cab or rear-mount), with Fixed Cab (BTF) and Swing Cab (BTL) designations. To certify, a candidate passes the Core written examination, which all mobile crane operators take, plus the Boom Truck specialty written examination, then the corresponding practical examination. The Core has 90 multiple-choice questions in 90 minutes covering Site (~20%), Operations (~26%), Technical Knowledge (~28%) and Manufacturers' Load Charts (~26%). The Boom Truck specialty has 26 questions in 60 minutes and is weighted heavily toward load charts (~35%) along with setup, operations and technical knowledge. The program is built on OSHA 1926 Subpart CC and ASME B30.5, and is accredited by ANSI and the NCCA.

Assessment

Two written examinations: the Core (90 multiple-choice questions) plus the Boom Truck specialty (26 multiple-choice questions). Boom Truck has Fixed Cab (BTF) and Swing Cab (BTL) designations. Both Core and a specialty must be passed.

Time Limit

90 minutes for the Core examination and 60 minutes for the Boom Truck specialty examination.

Passing Score

A scaled passing score is required on each written examination, set by the test committee using the modified Angoff method (approximately 70 percent). Scores are reported as scaled scores, and both the Core and the Boom Truck specialty must be passed.

Exam Fee

CBT written fees: Core only $230; Core plus one Specialty $250 (one Specialty only, after Core passed, $145). PPT written fees: Core only $160; Core plus one Specialty $180. A separate practical examination fee applies; a $50 late fee applies to late applications. (National Commission for the Certification of Crane Operators (CCO/NCCCO))

NCCCO Boom Truck Exam Content Outline

30%

Manufacturer's Load Charts and Capacity

Reading boom-truck load charts, gross vs net capacity, deductions for rigging, load blocks, jibs and attachments, range diagrams, working radius, on-rubber vs on-outrigger charts, and chart notes/footnotes. Includes net-capacity calculation problems. This is the highest-weighted area on both the Core (~26%) and the Boom Truck specialty (~35%).

22%

Setup and Stability

Outriggers and stabilizers, ground bearing pressure, cribbing and mats, leveling, structural strength vs stability limits, boom-truck chassis mounting (behind-cab vs rear-mount), assembly/disassembly and ensuring adequate room for outrigger extension and swing clearance.

22%

Operations

Boom-truck hoisting, telescoping, swing and pick-and-carry where allowed, on rubber vs on outriggers; wire rope and reeving, parts of line, drum capacity and load block/ball selection; load-moment indicators and anti-two-block devices; and reacting to changing conditions and dynamic/side loading.

13%

Site and Power-Line Safety

Power-line minimum approach distances under OSHA 1926.1408, ground conditions and supporting surfaces, identification of site hazards, review of operation plans, and operator responsibilities under OSHA 1926 Subpart CC.

13%

Technical Knowledge, Rigging and Signals

OSHA Subpart CC and ASME B30.5 standards, daily/frequent/periodic inspections, rigging fundamentals (sling angle effects, hitch capacity, hardware), and standard hand and voice signals.

How to Pass the NCCCO Boom Truck Exam

What You Need to Know

  • Passing score: A scaled passing score is required on each written examination, set by the test committee using the modified Angoff method (approximately 70 percent). Scores are reported as scaled scores, and both the Core and the Boom Truck specialty must be passed.
  • Assessment: Two written examinations: the Core (90 multiple-choice questions) plus the Boom Truck specialty (26 multiple-choice questions). Boom Truck has Fixed Cab (BTF) and Swing Cab (BTL) designations. Both Core and a specialty must be passed.
  • Time limit: 90 minutes for the Core examination and 60 minutes for the Boom Truck specialty examination.
  • Exam fee: CBT written fees: Core only $230; Core plus one Specialty $250 (one Specialty only, after Core passed, $145). PPT written fees: Core only $160; Core plus one Specialty $180. A separate practical examination fee applies; a $50 late fee applies to late applications.

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 Boom Truck Study Tips from Top Performers

1Master load charts first: practice finding gross capacity at a given radius and boom length, then subtract every deduction (block, ball, jib, rigging, auxiliary head) to get net capacity, because this is the single largest scored topic.
2Learn the difference between on-rubber and on-outrigger charts and between structural-strength and stability ratings; boom trucks often have separate charts for partially and fully extended outriggers.
3Memorize OSHA 1926.1408 power-line clearances: 20 feet for lines up to 350 kV and 50 feet above 350 kV when voltage is unknown, and the Table A approach distances when voltage is known.
4Know anti-two-block and load-moment device requirements under 1926.1416, and what to do when an operational aid is not working.
5Study rigging basics: how sling angle increases tension, the capacity difference between vertical, choker and basket hitches, and how to read a sling capacity tag.
6Practice the standard hand signals (hoist, lower, swing, stop, emergency stop, dog everything) and know when voice/radio signals replace hand signals under Subpart CC.

Frequently Asked Questions

What exams make up the NCCCO Boom Truck certification?

You take the Core written examination that all mobile crane operators take, plus the Boom Truck specialty written examination, and then the matching practical examination. Certification requires passing both written exams and the practical.

How many questions are on the Core and Boom Truck specialty exams?

The Core examination has 90 multiple-choice questions with a 90-minute time limit. The Boom Truck specialty examination has 26 multiple-choice questions with a 60-minute time limit.

What is the difference between BTF and BTL?

BTF is the Boom Truck Fixed Cab designation and BTL is the Boom Truck Swing Cab designation. Both cover hydraulic cranes mounted on a commercial truck chassis; the designation reflects whether the operator's cab is fixed to the carrier or rotates with the boom.

What is the passing score?

Each written exam is scored using a scaled passing score set by the test committee with the modified Angoff method, roughly equivalent to 70 percent. Both the Core and the Boom Truck specialty must be passed, and scores are reported as scaled scores rather than raw percentages.

What topics are weighted most heavily?

Reading manufacturer load charts and calculating net capacity is the largest topic, about 26 percent of the Core and roughly 35 percent of the Boom Truck specialty. Setup and stability, operations, site/power-line safety, and rigging and signals make up the rest.

Are these official NCCCO questions?

No. These are original OpenExamPrep practice questions modeled on the published Core and Boom Truck specialty content outlines and on OSHA 1926 Subpart CC and ASME B30.5. NCCCO does not publish its actual exam questions.