NC Mechanical 1 Level 1 Test | 100% Correct
Answers | Verified | Latest 2024 Version
which of the following can inspect welds on steel I beams in a commercial structure:
A. Building inspector
B. Contractor
C. Designed professional engineer
D. Jose the weld - ✔✔C
See GS160D-1106
Outdoor heated pool covers shall be provided with a ________? - ✔✔Class 1 vapor retardant cover
Energy Code R403.10.3
In a residence, Total duct leakage shall be less than or equal to __ cfm per 100 sq/ft of conditioned floor
area served by that system - ✔✔5
Energy Code R403.3.3.1
In a residence, Heat pumps having supplimentary electric-resistance heat shal have controls that, except
during deforst, prevent heat operation when _____? - ✔✔the heat pump compressor can meet the
heating load
Energy Code 403.1.2
In a residence, Heat pump lockout shall be set no lower than ____ and no higher than ____. - ✔✔35*F,
40*F
Energy Code R403.1.2
Are return ducts inside semi-conditioned and conditioned spaces of a residence required to be
insulated? - ✔✔Not required, other than may be necessary
Energy Code R403.3.1
,In a commercial occupancy, a thermostat is allowed to control multiple zones from one thermostat -
✔✔False, each zone must be controlled by individual controls within that zone.
*Review entire section
Energy Code C403.4.1
Alamance county is in climate zone _____ - ✔✔4A
Energy Code
The minimum screen mesh size for a vent terminating to the outdoors in a residence is? - ✔✔Not less
than 1/4"
M401.5 (Table)
A hazardous exhaust system is required when ______, except in laboratories - ✔✔see M510.2
An exhaust system is required when ____? - ✔✔Equipment and processes in such areas produce or
throw off dust or particles sufficently to float in the air, or which emit heat, odors, fumes, spray, gas or
smoke in such quantities so as to be irritating or injurious to health and safety
M502.1
The maximum opening size of a screen on an air intake can be no larger than ___ Inch. - ✔✔1/2
Table M401.5
Condensate waste and drain line sizes shall be no smaller than ____. - ✔✔3/4"
M307.2.2
The slope of a condensate drain shall be no less than _____ inch per 12 inches - ✔✔1/8"
M307.2.1
Can a portable space heater be used to provide space heating in a interior space intended for human
occupancy? - ✔✔No. Heating systems need to be permanently affixed.
, M309.1
Space heating systems need to be capable of maintaining a temperature of ____*F - ✔✔68
M309.1
Which requires a carbon monoxide to be installed?
A. A heat pump changeout
B. Gas Stove installation
C. Radiant Heater - ✔✔B; "...where fuel fired appliances or fireplaces are added or replaced..."
M313.2
Supply air to a swimming pool and associated deck areas shall not be recirculated unless such air is
_______? - ✔✔dehumidified to maintain the relative humidity of the area at 60% or less
M403.2.1 #2
the "Breathing Zone" is defined as the region within an occupied space between planes ___ inches and
___ inches above the floor and ___ feet from the walls of the space or from fixed air conditioning
equipment. - ✔✔3", 72", 2'
Definition in Mechanical Code
Appliances located in public garages shall be installed no lower than ______. - ✔✔1' higher than the
tallest vehicle garage door opening
a suspended air handler in a residential crawl space shall be no less than ___ inches above the adjoining
grade - ✔✔6"
M304.10.2
Fuel oil piping supports shall be in accordance with section ____ - ✔✔M305
M1304.1
Answers | Verified | Latest 2024 Version
which of the following can inspect welds on steel I beams in a commercial structure:
A. Building inspector
B. Contractor
C. Designed professional engineer
D. Jose the weld - ✔✔C
See GS160D-1106
Outdoor heated pool covers shall be provided with a ________? - ✔✔Class 1 vapor retardant cover
Energy Code R403.10.3
In a residence, Total duct leakage shall be less than or equal to __ cfm per 100 sq/ft of conditioned floor
area served by that system - ✔✔5
Energy Code R403.3.3.1
In a residence, Heat pumps having supplimentary electric-resistance heat shal have controls that, except
during deforst, prevent heat operation when _____? - ✔✔the heat pump compressor can meet the
heating load
Energy Code 403.1.2
In a residence, Heat pump lockout shall be set no lower than ____ and no higher than ____. - ✔✔35*F,
40*F
Energy Code R403.1.2
Are return ducts inside semi-conditioned and conditioned spaces of a residence required to be
insulated? - ✔✔Not required, other than may be necessary
Energy Code R403.3.1
,In a commercial occupancy, a thermostat is allowed to control multiple zones from one thermostat -
✔✔False, each zone must be controlled by individual controls within that zone.
*Review entire section
Energy Code C403.4.1
Alamance county is in climate zone _____ - ✔✔4A
Energy Code
The minimum screen mesh size for a vent terminating to the outdoors in a residence is? - ✔✔Not less
than 1/4"
M401.5 (Table)
A hazardous exhaust system is required when ______, except in laboratories - ✔✔see M510.2
An exhaust system is required when ____? - ✔✔Equipment and processes in such areas produce or
throw off dust or particles sufficently to float in the air, or which emit heat, odors, fumes, spray, gas or
smoke in such quantities so as to be irritating or injurious to health and safety
M502.1
The maximum opening size of a screen on an air intake can be no larger than ___ Inch. - ✔✔1/2
Table M401.5
Condensate waste and drain line sizes shall be no smaller than ____. - ✔✔3/4"
M307.2.2
The slope of a condensate drain shall be no less than _____ inch per 12 inches - ✔✔1/8"
M307.2.1
Can a portable space heater be used to provide space heating in a interior space intended for human
occupancy? - ✔✔No. Heating systems need to be permanently affixed.
, M309.1
Space heating systems need to be capable of maintaining a temperature of ____*F - ✔✔68
M309.1
Which requires a carbon monoxide to be installed?
A. A heat pump changeout
B. Gas Stove installation
C. Radiant Heater - ✔✔B; "...where fuel fired appliances or fireplaces are added or replaced..."
M313.2
Supply air to a swimming pool and associated deck areas shall not be recirculated unless such air is
_______? - ✔✔dehumidified to maintain the relative humidity of the area at 60% or less
M403.2.1 #2
the "Breathing Zone" is defined as the region within an occupied space between planes ___ inches and
___ inches above the floor and ___ feet from the walls of the space or from fixed air conditioning
equipment. - ✔✔3", 72", 2'
Definition in Mechanical Code
Appliances located in public garages shall be installed no lower than ______. - ✔✔1' higher than the
tallest vehicle garage door opening
a suspended air handler in a residential crawl space shall be no less than ___ inches above the adjoining
grade - ✔✔6"
M304.10.2
Fuel oil piping supports shall be in accordance with section ____ - ✔✔M305
M1304.1
