NYC DOB Chapter 33
Definitions Exam Questions
Verified and Provided with A+
Graded Answers| Latest
Updated 2026
,Accident
An occurrence directly caused by construction or demolition activity or site conditions
that result in one or more of
the following:
1.) A fatality to a member of the public; or
2.) Any type of injury to a member of the public; or
3.) A fatality to a worker; or
4.)An injury to a worker that requires transport by emergency medical services or
requires immediate emergency care at a hospital or offsite medical clinic; or
5.) Any complete or partial structural collapse or material failure; or
6.) Any complete or partial collapse or failure of pedestrian protection,
scaffolding, hoisting equipment, or material handling equipment; or
7.) Any material fall exterior to the building or structure
Adjustment (Scaffold)
The calibration or modification of a scaffold, including any part or component, that does
not meet the definition of installation, removal, repair, maintenance, or use, and does
not constitute normal use or operation of the scaffold.
Alteration
Any construction, addition, change of use or occupancy, or renovation to a building or
structure in existence.
, Architect
A person licensed and registered to practice the profession of architecture under the
education law of New York State.
Articulating Boom Crane
A power-operated machine for lifting or lowering a load and moving it horizon tally that
utilizes a boom consisting of a series of folding pin connected structural members,
typically manipulated to extend or retrdct by
power from hydraulic cylinders, with or without a hoisting mechanism integral to the
machine.
Axis of Rotation
The vertical axis around which the crane superstructure rotates.
Axle
The shaft or spindle with which or about which a wheel rotates. On truck and wheel
mounted cranes, it refers to an automotive type of axle assembly, including
housing, gearing, differential, bearings and mounting appurtenances.
Definitions Exam Questions
Verified and Provided with A+
Graded Answers| Latest
Updated 2026
,Accident
An occurrence directly caused by construction or demolition activity or site conditions
that result in one or more of
the following:
1.) A fatality to a member of the public; or
2.) Any type of injury to a member of the public; or
3.) A fatality to a worker; or
4.)An injury to a worker that requires transport by emergency medical services or
requires immediate emergency care at a hospital or offsite medical clinic; or
5.) Any complete or partial structural collapse or material failure; or
6.) Any complete or partial collapse or failure of pedestrian protection,
scaffolding, hoisting equipment, or material handling equipment; or
7.) Any material fall exterior to the building or structure
Adjustment (Scaffold)
The calibration or modification of a scaffold, including any part or component, that does
not meet the definition of installation, removal, repair, maintenance, or use, and does
not constitute normal use or operation of the scaffold.
Alteration
Any construction, addition, change of use or occupancy, or renovation to a building or
structure in existence.
, Architect
A person licensed and registered to practice the profession of architecture under the
education law of New York State.
Articulating Boom Crane
A power-operated machine for lifting or lowering a load and moving it horizon tally that
utilizes a boom consisting of a series of folding pin connected structural members,
typically manipulated to extend or retrdct by
power from hydraulic cylinders, with or without a hoisting mechanism integral to the
machine.
Axis of Rotation
The vertical axis around which the crane superstructure rotates.
Axle
The shaft or spindle with which or about which a wheel rotates. On truck and wheel
mounted cranes, it refers to an automotive type of axle assembly, including
housing, gearing, differential, bearings and mounting appurtenances.
