mechanical
IRC inspector for mechanical
問題一覧
1
A solid fuel burning appliance requires a minimum clearance without protection of 18 inches from the sides and back to combustible material. If 24 gage sheet metal with a ventilated air space is used as protection, the minimum clearance may be reduced to ____.
12"
2
A combustion air opening for a central furnace shall be unobstructed for a minimum distance of ____ in front of the opening.
6"
3
Radiant heating panels installed on wood framing shall be fastened a minimum of ___ inch from an element.
1/4
4
Where an under-floor space is used as a supply plenum in an existing structure, the furnace shall be equipped with an approved automatic control that limits the outlet air temperature to a maximum of ___ F.
200
5
Unless in conformance with the criteria for underground duct systems, ducts shall be installed with a minimum of ___ inches separation from earth.
4
6
As a general rule, duct coverings and linings shall have a maximum flame spread index of ___ and a maximum smoke developed index of ____.
25, 50
7
Vents for natural draft appliances shall terminate a minimum of ____ feet above the highest connected appliance outlet.
5
8
A ground source heat pump loop system shall be pressure tested with water at ___ psi for ___ minutes with no observed leaks prior to the backfilling of the connection trenches.
100, 15
9
In general, appliance fuel connectors shall have a maximum overall length of ____.
6 feet
10
For other than steel pope and CSST, exposed gas piping shall be identified by a yellow label marked "gas" spaced at maximum intervals of ____ unless in the same room as the appliance served.
5 feet
11
An MP pressure regulator, when installed in a gas piping system and connected to rigid piping, shall be provided with a union installed within ____ inches of either side of the regulator.
12
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13問 • 1年前問題一覧
1
A solid fuel burning appliance requires a minimum clearance without protection of 18 inches from the sides and back to combustible material. If 24 gage sheet metal with a ventilated air space is used as protection, the minimum clearance may be reduced to ____.
12"
2
A combustion air opening for a central furnace shall be unobstructed for a minimum distance of ____ in front of the opening.
6"
3
Radiant heating panels installed on wood framing shall be fastened a minimum of ___ inch from an element.
1/4
4
Where an under-floor space is used as a supply plenum in an existing structure, the furnace shall be equipped with an approved automatic control that limits the outlet air temperature to a maximum of ___ F.
200
5
Unless in conformance with the criteria for underground duct systems, ducts shall be installed with a minimum of ___ inches separation from earth.
4
6
As a general rule, duct coverings and linings shall have a maximum flame spread index of ___ and a maximum smoke developed index of ____.
25, 50
7
Vents for natural draft appliances shall terminate a minimum of ____ feet above the highest connected appliance outlet.
5
8
A ground source heat pump loop system shall be pressure tested with water at ___ psi for ___ minutes with no observed leaks prior to the backfilling of the connection trenches.
100, 15
9
In general, appliance fuel connectors shall have a maximum overall length of ____.
6 feet
10
For other than steel pope and CSST, exposed gas piping shall be identified by a yellow label marked "gas" spaced at maximum intervals of ____ unless in the same room as the appliance served.
5 feet
11
An MP pressure regulator, when installed in a gas piping system and connected to rigid piping, shall be provided with a union installed within ____ inches of either side of the regulator.
12