5,000+ QUESTION BANK • ADAPTIVE MOBILE ENGINE
NCCCO & OECP Practice Tests
Smart Adaptive Mastery Engine
Test your skills across all 4 core domains, load charts, OSHA rules, and ASME standards. The mobile app tracks questions you miss and continues re-testing until you master them 100%.
Live Practice Test Simulator (Try 5 Questions Below)
Instant Scoring & OSHA CitationsNCCCO Core
Definitions
Adaptive Mobile Tracking Active
Question 1 of 5Score: 0 Correct • Mastered: 0
What is the rated load of a crane?
Mobile App re-tests unmastered questions until 100% precision is hit.
1. Automatic Missed Tracking
Every question you answer incorrectly is automatically flagged and saved in your personal "Weak Spot Review" queue inside the mobile app.
2. Union Operator Tips
Along with exact OSHA and ASME standards citations, every missed question unlocks real field pro-tips written by active union operators.
3. Repetition Until Mastered
The adaptive engine resurfaces missed questions during your daily study sessions until you answer them correctly 3 consecutive times!
5,000+ Question Coverage by Exam Domain
Weights from the official CCO Mobile Crane Operator candidate handbook (Core exam / each specialty exam):
| Exam Domain | Weight (Core / Specialty) | Available Questions | Core Focus Topics |
|---|---|---|---|
| Domain 1: Site Setup & Ground Conditions | 22% / 23% | 1,150+ Qs | OSHA 1926.1402, outrigger soil pressure, timber matting, power line clearances, assembly/disassembly. |
| Domain 2: Crane Operations & Safety | 28% / 23% | 1,250+ Qs | ASME B30.5 rules, multi-crane lifts, personnel hoisting, inspection protocols, shut-down procedures. |
| Domain 3: Technical Knowledge & Rigging | 23% / 19% | 950+ Qs | Wire rope reeving, wire rope safety factors, drum capacity, sling angles, hand signals, rigging hardware. |
| Domain 4: Load Charts & Calculations | 27% / 35% | 1,650+ Qs | Lattice & telescopic charts, deductions, stowed jib weights, net vs gross capacity, quadrant deductions. |