2018 International Mechanical Code Study Set
Solar thermal systems shall not obstruct any building component requiring _______. -
Answer--operation or access
In general, solar thermal equipment exposed to vehicular traffic shall be installed a
minimum of _______ feet above the floor. - Answer--6
Where attics or structural spaces are used as part of a passive solar system, _______
of such spaces is not required where other approved means of controlling condensation
are provided. - Answer--ventilation
Roof-mounted equipment such as _____ add a substantial load to the roof and increase
the probability of collapse. - Answer--International Building Code
Where roof-mounted solar collectors serve as the roof covering, the use of plastic solar
collector covers is exempt from the building code's general roof covering requirements if
the collector cover meets the requirements for _______. - Answer--plastic roof panels
Solar thermal systems containing pressurized fluids shall be protected against
pressures and temperatures exceeding design limitations with a _______. -
Answer--pressure and temperature relief
Where a relief valve is required in a solar energy system, the valve shall be set at a
maximum of _______ percent of the nameplate pressure rating. - Answer--100
Solar thermal system components subject to a vacuum during shutdown shall be
protected with vacuum _______. - Answer--relief valves
,System components shall be protected from any freezing that may be encountered
during _______. - Answer--the operation of the system
Roof and wall penetrations shall be flashed and sealed to prevent entry of _______. -
Answer--water, rodents, and insects
An unfired pressure vessel installed in a Group B occupancy is not regulated by the
provisions of Chapter 10, provided it operates at a maximum pressure of _______ psi
and has a maximum volume of _______ cubic feet. - Answer--250, 50
Water heaters used for both potable water heating and space heating shall be sized to
prevent the space-heating load from reducing the required _______. - Answer--potable
water heating capacity
Where a combination potable water-heating and space-heating system requires water
for space heating with a temperature higher than _______ °F, a temperature-actuating
mixing valve shall be provided. - Answer--140
In sizing a closed-type expansion tank, the following criteria is not required. -
Answer--minimum operating pressure
Boiler operating instructions of a permanent type shall be _______. - Answer--attached
to the boiler
Boilers shall have all controls set, adjusted and tested by _______. - Answer--the
mechanical contractor
Clearances shall be maintained around boilers so as to permit inspection, servicing,
repair, replacement and _______. - Answer--visibility of gauges
In order to provide for working clearances, passageways around all sides of boilers shall
have a minimum unobstructed width of _______ inches unless otherwise approved. -
Answer--18
High-pressure steam boilers with an input in excess of 5,000,000 Btu/h shall have a
minimum clearance of _______ feet between the top of the boiler and the ceiling. -
Answer--7
,Flexible air connectors shall be limited in length to a maximum of _______ feet. -
Answer--14
_______ air connectors shall not pass through any wall, floor or ceiling. -
Answer--Flexible
The permitted temperature of air in flexible air ducts or flexible air connectors shall be
less than _______ °F. - Answer--250
Return air openings must be located a minimum of _______ feet from the draft hood of
another appliance located in the same room. - Answer--10
Unless complying as underground ducts per Section 603.8, ducts shall be installed a
minimum of _______ inches from the earth. - Answer--4
Floor registers shall resist, without structural failure, a minimum _______ -pound
concentrated load. - Answer--200
Ducts that operate at temperatures exceeding _______ °F shall have sufficient thermal
insulation to limit the exposed surface temperatures. - Answer--120
Factory-insulated flexible duct shall be printed or identified at maximum intervals of
_______ inches. - Answer--36
Interruptions in the linings of ducts are required a minimum of _______ inches upstream
and downstream of fuel-burning heaters in a duct system. - Answer--6
A fire damper protecting the duct penetration of a 2-hour fire-resistance-rated wall
assembly shall have a minimum fire-protection rating of _______ hour (s). - Answer--1
1/2
Smoke detectors shall be installed in a return air system with a minimum design
capacity greater than _______ cfm. - Answer--2,000
Smoke detectors are not required in a return air system where all areas of the building
served are _______. - Answer--protected by area smoke detectors connected to a fire
alarm system
In general, a Type I hood shall be installed with a minimum clearance to combustibles of
_______ inches. - Answer--18
, A Type I hood in not required for a _______. - Answer--compartment steamer
A Type I hood shall not be required for an electric cooking appliance where an approved
testing agency provides documentation that the appliance has been properly tested and
the appliance effluent contains _______ of grease. - Answer--5 mg/m³ or less
Unless the hood is closed to the appliance side by a noncombustible wall or panel, the
inside lower edge of a canopy-type Type II commercial hood shall overhang or extend a
minimum horizontal distance of _______ inches beyond the edge of the appliance
surface. - Answer--6
The maximum vertical distance between the front lower lip of a canopy-type Type I hood
and the appliance surface shall be _______ feet. - Answer--4
Non-canopy-type hoods shall be located a maximum of _______ feet above the cooking
surface. - Answer--3
In general, makeup air supplied to a commercial kitchen exhaust system and the air in
the conditioned space shall have a maximum temperature differential of _______ °F. -
Answer--10
Where cooking appliances are required to have a Type I hood, they must be provided
with an approved _______. - Answer--automatic fire suppression system
A certificate of test shall be provided for all systems containing a minimum of _______
pounds of refrigerant. - Answer--55
The IMC requires periodic testing of _______ and other specific emergency devices and
systems in accordance with the manufacturer's instructions and as required by the code
official. - Answer--treatment and flaring systems
Polypropylene (PP) plastic pipe utilized in a hydronic piping system shall comply with
ASTM Standard _______. - Answer--F2389
Piping for hydronic systems shall be sized for the _______ of the system. -
Answer--demand
Where thread lubricant is applied to the threaded joints of hydronic piping, it shall be
applied to _______. - Answer--only the male threads
Solar thermal systems shall not obstruct any building component requiring _______. -
Answer--operation or access
In general, solar thermal equipment exposed to vehicular traffic shall be installed a
minimum of _______ feet above the floor. - Answer--6
Where attics or structural spaces are used as part of a passive solar system, _______
of such spaces is not required where other approved means of controlling condensation
are provided. - Answer--ventilation
Roof-mounted equipment such as _____ add a substantial load to the roof and increase
the probability of collapse. - Answer--International Building Code
Where roof-mounted solar collectors serve as the roof covering, the use of plastic solar
collector covers is exempt from the building code's general roof covering requirements if
the collector cover meets the requirements for _______. - Answer--plastic roof panels
Solar thermal systems containing pressurized fluids shall be protected against
pressures and temperatures exceeding design limitations with a _______. -
Answer--pressure and temperature relief
Where a relief valve is required in a solar energy system, the valve shall be set at a
maximum of _______ percent of the nameplate pressure rating. - Answer--100
Solar thermal system components subject to a vacuum during shutdown shall be
protected with vacuum _______. - Answer--relief valves
,System components shall be protected from any freezing that may be encountered
during _______. - Answer--the operation of the system
Roof and wall penetrations shall be flashed and sealed to prevent entry of _______. -
Answer--water, rodents, and insects
An unfired pressure vessel installed in a Group B occupancy is not regulated by the
provisions of Chapter 10, provided it operates at a maximum pressure of _______ psi
and has a maximum volume of _______ cubic feet. - Answer--250, 50
Water heaters used for both potable water heating and space heating shall be sized to
prevent the space-heating load from reducing the required _______. - Answer--potable
water heating capacity
Where a combination potable water-heating and space-heating system requires water
for space heating with a temperature higher than _______ °F, a temperature-actuating
mixing valve shall be provided. - Answer--140
In sizing a closed-type expansion tank, the following criteria is not required. -
Answer--minimum operating pressure
Boiler operating instructions of a permanent type shall be _______. - Answer--attached
to the boiler
Boilers shall have all controls set, adjusted and tested by _______. - Answer--the
mechanical contractor
Clearances shall be maintained around boilers so as to permit inspection, servicing,
repair, replacement and _______. - Answer--visibility of gauges
In order to provide for working clearances, passageways around all sides of boilers shall
have a minimum unobstructed width of _______ inches unless otherwise approved. -
Answer--18
High-pressure steam boilers with an input in excess of 5,000,000 Btu/h shall have a
minimum clearance of _______ feet between the top of the boiler and the ceiling. -
Answer--7
,Flexible air connectors shall be limited in length to a maximum of _______ feet. -
Answer--14
_______ air connectors shall not pass through any wall, floor or ceiling. -
Answer--Flexible
The permitted temperature of air in flexible air ducts or flexible air connectors shall be
less than _______ °F. - Answer--250
Return air openings must be located a minimum of _______ feet from the draft hood of
another appliance located in the same room. - Answer--10
Unless complying as underground ducts per Section 603.8, ducts shall be installed a
minimum of _______ inches from the earth. - Answer--4
Floor registers shall resist, without structural failure, a minimum _______ -pound
concentrated load. - Answer--200
Ducts that operate at temperatures exceeding _______ °F shall have sufficient thermal
insulation to limit the exposed surface temperatures. - Answer--120
Factory-insulated flexible duct shall be printed or identified at maximum intervals of
_______ inches. - Answer--36
Interruptions in the linings of ducts are required a minimum of _______ inches upstream
and downstream of fuel-burning heaters in a duct system. - Answer--6
A fire damper protecting the duct penetration of a 2-hour fire-resistance-rated wall
assembly shall have a minimum fire-protection rating of _______ hour (s). - Answer--1
1/2
Smoke detectors shall be installed in a return air system with a minimum design
capacity greater than _______ cfm. - Answer--2,000
Smoke detectors are not required in a return air system where all areas of the building
served are _______. - Answer--protected by area smoke detectors connected to a fire
alarm system
In general, a Type I hood shall be installed with a minimum clearance to combustibles of
_______ inches. - Answer--18
, A Type I hood in not required for a _______. - Answer--compartment steamer
A Type I hood shall not be required for an electric cooking appliance where an approved
testing agency provides documentation that the appliance has been properly tested and
the appliance effluent contains _______ of grease. - Answer--5 mg/m³ or less
Unless the hood is closed to the appliance side by a noncombustible wall or panel, the
inside lower edge of a canopy-type Type II commercial hood shall overhang or extend a
minimum horizontal distance of _______ inches beyond the edge of the appliance
surface. - Answer--6
The maximum vertical distance between the front lower lip of a canopy-type Type I hood
and the appliance surface shall be _______ feet. - Answer--4
Non-canopy-type hoods shall be located a maximum of _______ feet above the cooking
surface. - Answer--3
In general, makeup air supplied to a commercial kitchen exhaust system and the air in
the conditioned space shall have a maximum temperature differential of _______ °F. -
Answer--10
Where cooking appliances are required to have a Type I hood, they must be provided
with an approved _______. - Answer--automatic fire suppression system
A certificate of test shall be provided for all systems containing a minimum of _______
pounds of refrigerant. - Answer--55
The IMC requires periodic testing of _______ and other specific emergency devices and
systems in accordance with the manufacturer's instructions and as required by the code
official. - Answer--treatment and flaring systems
Polypropylene (PP) plastic pipe utilized in a hydronic piping system shall comply with
ASTM Standard _______. - Answer--F2389
Piping for hydronic systems shall be sized for the _______ of the system. -
Answer--demand
Where thread lubricant is applied to the threaded joints of hydronic piping, it shall be
applied to _______. - Answer--only the male threads
