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NYC DOB Master Rigger License Exam ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS YEAR
NYC DOB Master Rigger License Exam – Complete Practice Coverage
New York City Department of Buildings
This exam is focused on heavy lifting, cranes, rigging operations, safety law compliance, load
calculations, and NYC Construction Codes.
ACTUAL EXAM COVERAGE (ALL CONTENTS TESTED)
1. NYC Rigger Laws & Regulations
• NYC Construction Codes (Building Code Chapter 33)
• OSHA 29 CFR 1926 Subpart CC (Cranes & Derricks)
• DOB licensing rules for riggers
• Permit requirements and site safety rules
2. Rigging Equipment & Hardware
• Wire ropes, slings (chain, synthetic, wire)
• Shackles, hooks, eyebolts, turnbuckles
• Load ratings and Working Load Limits (WLL)
• Inspection and retirement criteria
3. Crane Types & Operations
• Mobile cranes, tower cranes, overhead cranes
• Crane load charts interpretation
• Radius vs capacity relationship
• Outrigger setup and stability
4. Load Calculations & Physics
• Load weight estimation
• Center of gravity (COG)
• Sling angle calculations
• Tension forces in multi-leg slings
5. Safety Procedures
• Tag lines and load control
• Exclusion zones
• Signal person requirements
• Fall protection systems
6. Inspection & Maintenance
• Daily rigging inspection checklist
• Defective gear identification
• Crane pre-lift inspections
• Documentation requirements
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7. Site Safety & Communication
• Hand signals and radio communication
• Lift plan documentation
• Coordination with site safety manager
8. Emergency Procedures
• Load drop response
• Crane tip-over prevention
• Power failure procedures
• Accident reporting (DOB requirements)
1.
A rigger is preparing to lift a 10,000 lb steel beam using a two-leg sling at 60-degree angles. What is the
primary safety concern?
A. Reduced load weight
B. Increased tension in each sling leg
C. Faster lifting speed
D. Reduced crane stability
Answer: B
Rationale: Sling angle increases tension significantly in each leg, often exceeding rated capacity.
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2.
A crane operator exceeds the load chart capacity at a reduced radius without adjusting setup. What is
the most likely consequence?
A. Increased efficiency
B. Crane tip-over risk
C. Reduced fuel consumption
D. Faster operation
Answer: B
3.
A wire rope shows broken wires concentrated in one lay length during inspection. What does this
indicate?
A. Proper condition
B. Structural deterioration requiring immediate removal
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C. Increased strength
D. Reduced wear
Answer: B
4.
A rigger fails to use a tag line on a suspended load in windy conditions. What is the risk?
A. Improved control
B. Load swing and collision hazard
C. Faster lifting
D. Reduced labor
Answer: B
5.
NYC DOB Master Rigger License Exam ACTUAL
EXAM COMPLETE QUESTIONS AND CORRECT
ANSWERS LATEST UPDATE THIS YEAR
NYC DOB Master Rigger License Exam – Complete Practice Coverage
New York City Department of Buildings
This exam is focused on heavy lifting, cranes, rigging operations, safety law compliance, load
calculations, and NYC Construction Codes.
ACTUAL EXAM COVERAGE (ALL CONTENTS TESTED)
1. NYC Rigger Laws & Regulations
• NYC Construction Codes (Building Code Chapter 33)
• OSHA 29 CFR 1926 Subpart CC (Cranes & Derricks)
• DOB licensing rules for riggers
• Permit requirements and site safety rules
2. Rigging Equipment & Hardware
• Wire ropes, slings (chain, synthetic, wire)
• Shackles, hooks, eyebolts, turnbuckles
• Load ratings and Working Load Limits (WLL)
• Inspection and retirement criteria
3. Crane Types & Operations
• Mobile cranes, tower cranes, overhead cranes
• Crane load charts interpretation
• Radius vs capacity relationship
• Outrigger setup and stability
4. Load Calculations & Physics
• Load weight estimation
• Center of gravity (COG)
• Sling angle calculations
• Tension forces in multi-leg slings
5. Safety Procedures
• Tag lines and load control
• Exclusion zones
• Signal person requirements
• Fall protection systems
6. Inspection & Maintenance
• Daily rigging inspection checklist
• Defective gear identification
• Crane pre-lift inspections
• Documentation requirements
, Page 2 of 131
7. Site Safety & Communication
• Hand signals and radio communication
• Lift plan documentation
• Coordination with site safety manager
8. Emergency Procedures
• Load drop response
• Crane tip-over prevention
• Power failure procedures
• Accident reporting (DOB requirements)
1.
A rigger is preparing to lift a 10,000 lb steel beam using a two-leg sling at 60-degree angles. What is the
primary safety concern?
A. Reduced load weight
B. Increased tension in each sling leg
C. Faster lifting speed
D. Reduced crane stability
Answer: B
Rationale: Sling angle increases tension significantly in each leg, often exceeding rated capacity.
, Page 3 of 131
2.
A crane operator exceeds the load chart capacity at a reduced radius without adjusting setup. What is
the most likely consequence?
A. Increased efficiency
B. Crane tip-over risk
C. Reduced fuel consumption
D. Faster operation
Answer: B
3.
A wire rope shows broken wires concentrated in one lay length during inspection. What does this
indicate?
A. Proper condition
B. Structural deterioration requiring immediate removal
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C. Increased strength
D. Reduced wear
Answer: B
4.
A rigger fails to use a tag line on a suspended load in windy conditions. What is the risk?
A. Improved control
B. Load swing and collision hazard
C. Faster lifting
D. Reduced labor
Answer: B
5.
