NYC DOB Master Rigger Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. In the NYC construction regulatory framework, which governing body
primarily establishes the licensing requirements and operational
standards for a Master Rigger working on major construction sites
within the city?
A. Occupational Safety and Health Administration (OSHA)
B. New York State Department of Labor
C. New York City Department of Buildings
D. Federal Highway Administration
C
The New York City Department of Buildings is the regulatory authority
responsible for issuing licenses, enforcing safety codes, and overseeing
compliance for rigging operations within city limits, including Master
Rigger certification requirements.
2. A Master Rigger is preparing to lift a load with an unknown center of
gravity. What is the most critical first step before selecting rigging
gear?
,A. Attach slings and adjust during lift
B. Estimate load weight visually
C. Determine exact load weight and center of gravity
D. Increase crane capacity setting
C
Accurately determining the load weight and center of gravity is essential
to ensure proper sling selection, balanced lifting, and prevention of load
shift or rigging failure during hoisting operations.
3. Which type of sling is most appropriate for lifting a load with sharp
edges that could damage synthetic materials?
A. Nylon web sling
B. Polyester round sling
C. Wire rope sling with protective sleeves
D. Chain sling
D
Chain slings are highly resistant to abrasion and cutting, making them the
safest option for loads with sharp or abrasive edges compared to synthetic
slings.
4. What is the primary purpose of a load chart used in rigging
operations?
A. To determine crane fuel consumption
B. To identify maximum safe lifting capacities under various configurations
C. To calculate rigging labor costs
D. To schedule maintenance intervals
B
,Load charts provide critical information on safe lifting limits based on
boom length, radius, and configuration, ensuring lifts remain within
engineered safety tolerances.
5. When two or more slings are used in a lifting operation, what happens
to the tension in each sling as the sling angle decreases?
A. Tension decreases
B. Tension remains constant
C. Tension increases significantly
D. Tension becomes zero
C
As sling angles decrease, the tension in each sling increases significantly,
which can overload rigging components if not properly accounted for in
planning.
6. What is the safest method to verify that rigging equipment is free
from defects before use?
A. Visual inspection and manufacturer certification check
B. Load testing during lift
C. Increasing load gradually
D. Painting over worn areas
A
A thorough visual inspection combined with verification of manufacturer
certification ensures that equipment meets safety standards and is free
from visible defects before use.
7. Which factor most directly affects crane stability during a lift?
A. Operator experience only
B. Wind speed and load radius
, C. Paint condition of crane
D. Number of workers nearby
B
Crane stability is primarily influenced by wind conditions and load radius,
as both directly affect tipping moments and overall balance of the crane
system.
8. What is the correct definition of “working load limit” (WLL) in rigging
equipment?
A. The maximum load that can be applied under any condition
B. The load at which equipment will fail
C. The maximum safe load under specific service conditions
D. The weight of the rigging equipment itself
C
Working Load Limit is the maximum load that equipment is designed to
safely handle under normal operating conditions, including safety factors.
9. What is the most appropriate action when a rigging component shows
visible deformation?
A. Continue using it with reduced load
B. Repair it on-site immediately
C. Remove it from service immediately
D. Paint over the damaged area
C
Any visibly deformed rigging component must be removed from service
immediately because structural integrity has been compromised.
10. Which knot or hitch is most commonly used to shorten a sling
without reducing its strength significantly?
Questions And Correct Answers
(Verified Answers) Plus Rationale 2026
Q&A| Instant Download Pdf
1. In the NYC construction regulatory framework, which governing body
primarily establishes the licensing requirements and operational
standards for a Master Rigger working on major construction sites
within the city?
A. Occupational Safety and Health Administration (OSHA)
B. New York State Department of Labor
C. New York City Department of Buildings
D. Federal Highway Administration
C
The New York City Department of Buildings is the regulatory authority
responsible for issuing licenses, enforcing safety codes, and overseeing
compliance for rigging operations within city limits, including Master
Rigger certification requirements.
2. A Master Rigger is preparing to lift a load with an unknown center of
gravity. What is the most critical first step before selecting rigging
gear?
,A. Attach slings and adjust during lift
B. Estimate load weight visually
C. Determine exact load weight and center of gravity
D. Increase crane capacity setting
C
Accurately determining the load weight and center of gravity is essential
to ensure proper sling selection, balanced lifting, and prevention of load
shift or rigging failure during hoisting operations.
3. Which type of sling is most appropriate for lifting a load with sharp
edges that could damage synthetic materials?
A. Nylon web sling
B. Polyester round sling
C. Wire rope sling with protective sleeves
D. Chain sling
D
Chain slings are highly resistant to abrasion and cutting, making them the
safest option for loads with sharp or abrasive edges compared to synthetic
slings.
4. What is the primary purpose of a load chart used in rigging
operations?
A. To determine crane fuel consumption
B. To identify maximum safe lifting capacities under various configurations
C. To calculate rigging labor costs
D. To schedule maintenance intervals
B
,Load charts provide critical information on safe lifting limits based on
boom length, radius, and configuration, ensuring lifts remain within
engineered safety tolerances.
5. When two or more slings are used in a lifting operation, what happens
to the tension in each sling as the sling angle decreases?
A. Tension decreases
B. Tension remains constant
C. Tension increases significantly
D. Tension becomes zero
C
As sling angles decrease, the tension in each sling increases significantly,
which can overload rigging components if not properly accounted for in
planning.
6. What is the safest method to verify that rigging equipment is free
from defects before use?
A. Visual inspection and manufacturer certification check
B. Load testing during lift
C. Increasing load gradually
D. Painting over worn areas
A
A thorough visual inspection combined with verification of manufacturer
certification ensures that equipment meets safety standards and is free
from visible defects before use.
7. Which factor most directly affects crane stability during a lift?
A. Operator experience only
B. Wind speed and load radius
, C. Paint condition of crane
D. Number of workers nearby
B
Crane stability is primarily influenced by wind conditions and load radius,
as both directly affect tipping moments and overall balance of the crane
system.
8. What is the correct definition of “working load limit” (WLL) in rigging
equipment?
A. The maximum load that can be applied under any condition
B. The load at which equipment will fail
C. The maximum safe load under specific service conditions
D. The weight of the rigging equipment itself
C
Working Load Limit is the maximum load that equipment is designed to
safely handle under normal operating conditions, including safety factors.
9. What is the most appropriate action when a rigging component shows
visible deformation?
A. Continue using it with reduced load
B. Repair it on-site immediately
C. Remove it from service immediately
D. Paint over the damaged area
C
Any visibly deformed rigging component must be removed from service
immediately because structural integrity has been compromised.
10. Which knot or hitch is most commonly used to shorten a sling
without reducing its strength significantly?
