NYC DOB Chapter 33 Definitions (MECHANICAL
EQUIPMENT) ACCURATE EXAM APPROVED QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES
(100% CORRECT VERIFIED ANSWERS) LATEST
UPDATED 2026 EDITION |GUARANTEED PASS A+
Medium Duty Scaffold
A supported scaffold capable of supporting loads of up to 50
pounds per square foot (244.1
kg/m^2), and not more than those imposed by workers and
moderate material, including but not limited to brick and pipe.
Minor Alterations
Minor changes or modifications in a building or any part thereof,
excluding additions thereto, that do not in any way affect health or
the fire or
structural safety of the building or the safe use and operation of the
service equipment therein. Minor alterations shall not include any of
the work
described as "work not constituting minor alterations or ordinary
repairs."
,Mobile Crane
A commercial truck mounted crane, crawler crane, wheel mounted
crane
(multiple control stations), or wheel mounted crane (single control
station).
Mobile Scaffold
A powered or unpowered, portable, caster, track or wheel-mounted
supported scaffold.
Multipoint Adjustable Suspended Scaffold
A suspended scaffold consisting of a platform(s) that is suspended
by more than two ropes from overhead supports and equipped with a
means to raise and lower the platform to the desired work levels.
,Ordinary Repairs
Replacements or renewals of existing work in a building, or of parts
of the service equipment therein, with the same or equivalent
materials or
equipment parts, that are made in the ordinary course of
maintenance and that do not in any way affect health or the fire or
structural safety of the
building or the safe use and operation of the service equipment
therein.
Ordinary repairs shall include the repair or replacement of any
plumbing fixture, piping or faucets from any exposed stop valve to
the inlet side of a trap. Ordinary repairs shall not include any of
the work described as "work not constituting minor alterations or
ordinary repairs."
, Outrigger (Crane)
Extendable or fixed members attached to the mounting base that rest
on supports at the outer ends used to support the crane.
Outrigger (Scaffold)
The structural member of a supported scaffold used to increase the
base width of a scaffold in order to provide support for and
increased stability of the scaffold.
Outrigger Beam (Thrustout)
The structural member of a suspended scaffold or outrigger scaffold
that provides suppon for the scaffold by extending the scaffold
point of
attachment to a point out and away from the structure or building.
EQUIPMENT) ACCURATE EXAM APPROVED QUESTIONS
AND CORRECT DETAILED ANSWERS WITH RATIONALES
(100% CORRECT VERIFIED ANSWERS) LATEST
UPDATED 2026 EDITION |GUARANTEED PASS A+
Medium Duty Scaffold
A supported scaffold capable of supporting loads of up to 50
pounds per square foot (244.1
kg/m^2), and not more than those imposed by workers and
moderate material, including but not limited to brick and pipe.
Minor Alterations
Minor changes or modifications in a building or any part thereof,
excluding additions thereto, that do not in any way affect health or
the fire or
structural safety of the building or the safe use and operation of the
service equipment therein. Minor alterations shall not include any of
the work
described as "work not constituting minor alterations or ordinary
repairs."
,Mobile Crane
A commercial truck mounted crane, crawler crane, wheel mounted
crane
(multiple control stations), or wheel mounted crane (single control
station).
Mobile Scaffold
A powered or unpowered, portable, caster, track or wheel-mounted
supported scaffold.
Multipoint Adjustable Suspended Scaffold
A suspended scaffold consisting of a platform(s) that is suspended
by more than two ropes from overhead supports and equipped with a
means to raise and lower the platform to the desired work levels.
,Ordinary Repairs
Replacements or renewals of existing work in a building, or of parts
of the service equipment therein, with the same or equivalent
materials or
equipment parts, that are made in the ordinary course of
maintenance and that do not in any way affect health or the fire or
structural safety of the
building or the safe use and operation of the service equipment
therein.
Ordinary repairs shall include the repair or replacement of any
plumbing fixture, piping or faucets from any exposed stop valve to
the inlet side of a trap. Ordinary repairs shall not include any of
the work described as "work not constituting minor alterations or
ordinary repairs."
, Outrigger (Crane)
Extendable or fixed members attached to the mounting base that rest
on supports at the outer ends used to support the crane.
Outrigger (Scaffold)
The structural member of a supported scaffold used to increase the
base width of a scaffold in order to provide support for and
increased stability of the scaffold.
Outrigger Beam (Thrustout)
The structural member of a suspended scaffold or outrigger scaffold
that provides suppon for the scaffold by extending the scaffold
point of
attachment to a point out and away from the structure or building.
