2012 IMC

Question 1

Fire dampers are not required at penetrations of shafts where steel exhaust subducts extend at least ________________ vertically in exhaust shafts provided that there is a continuous airflow upward to the outdoors;

A. 10 inches
B. 10 feet horizontally
C. 22 inches
D. 22 feet horizontally

Answer 1

C. 22 inches

607 Ducts and Transfer Openings
- 607.5.5 Shaft Enclosures; Exception 1.1

Question 2

Hydronic piping shall be insulated to ______________.

A. a thickness of 1/2” of foam.
B. an R value of R5
C. minimum of R3
D. the thickness required by the International Energy Conservation Code

Answer 2

D. the thickness required by the International Energy Conservation Code

1204 Pipe Insulation
- 1204.2 Required Thickness

Question 3

The owner or the owner’s _______________ shall be responsible for maintenance of mechanical systems.

A. designated agent
B. installation contractor
C. design contractor
D. none of the above

Answer 3

A. designated agent

102 Applicability
- 102.3 Maintenance

Question 4

In wood structures, notches on the ends of joists shall not exceed _____________ the joist depth.

A. one-fourth
B. 6% of
C. 1/2 of
D. 10% of

Answer 4

A. one-fourth

302 Protection of Structures
- 302.3.1 Joist notching

Question 5

Air necessary for complete combustion of a fuel, including theoretical air and excess air.

A. Makeup air
B. Vent air
C. Combustion Air
D. Depletion air

Answer 5

C. Combustion Air

202 General Definitions

Question 6

Air for _____________________ of flue gases for appliances installed in buildings shall be provided by application of one of the methods prescribed in the International Fuel Gas Code.

A. combustion
B. dilution
C. combustion and dilution air
D. combustion, ventilation and dilution

Answer 6

D. combustion, ventilation and dilution

[IFGC] 304 Combustion, Ventilation and Dilution
- 304.1 General

Question 7

Vents shall terminate not less than ______________ in vertical height above the highest connected appliance flue collar. Exceptions ignored.

A. 2 feet
B. 5 feet
C. 10 feet
D. 12 feet

Answer 7

B. 5 feet

802 Vents
- 802.6 Minimum Vent Heights

Question 8

Mechanical and gravity outdoor air intake openings shall be located a minimum of 10 feet horizontally from any hazardous or noxious contaminant source, such as vents, chimneys, plumbing vent, streets, alleys, parking lots and loading docks, except as otherwise specified in this code. Where a sources of contaminant is located within 10 feet horizontally of an intake opening, such opening shall be located a minimum of ___________ below the contaminant source.

A. 2 feet
B. 3 feet
C. 5 feet
D. 10 feet

Answer 8

B. 3 feet

401.4 #3 Intake opening locations

Question 9

Where rooms and spaces without openings to the outdoors are ventilated through an adjoining room, the opening to the adjoining rooms shall be unobstructed and shall have an area not less than ________ percent of the floor area of the interior room or space, but not less than 25 square feet. Exceptions ignored.

A. 4
B. 8
C. 10
D. none of these

Answer 9

B. 8 Percent

402.3
Natural Ventilation - Adjoining Spaces

Question 10

Underground ducts shall be approved for underground installation. Metallic ducts not having an approved protective coating shall be completely encased in a minimum of ______ _______ of concrete.

A. 2 inches
B. 3 inches
C. 4 inches
D. 6 inches

Answer 10

A. 2 inches

603.8 Underground ducts.

Question 11

Equipment and appliances installed at grade level shall be supported on a level concrete slab or other approved material extending not less than 3 inches above adjoining grade or shall be suspended not less than _________ above adjoining grade. Such support shall be in accordance with the manufacturer’s installation instructions.

A. 10 inches
B. 6 inches
C. 18 inches
D. 24 inches

Answer 11

B. 6 inches

304.10
Installation - Clearance from grade

Question 12

Vented wall furnaces shall be located so that a door cannot swing within _____________ of an air inlet or air outlet of such furnace measured at right angles to the opening. Doorstops or door closers shall not be installed to obtain this clearance.

A. 6 inches
B. 12 inches
C. 18 inches
D. 24 inches

Answer 12

B. 12 inches

909.4
Vented Wall Furnaces - Door Swing

Question 13

Where combustion air is provided by the building’s mechanical ventilation system, the system shall provide the specified combustion air rate in ___________ the required ventilation air.

A. lieu of
B. addition to
C. minus
D. none of these

Answer 13

B. addition to

[IFGC] 304.9.3
Mechanical Combustion Air Supply - Combined Combustion Air and Ventilation Air System.

Question 14

In a wood structure, cutting or notching of studs not greater than _______ percent of their depth is permitted in non-bearing partitions supporting no loads other than the weight of the partition.

A. 10
B. 20
C. 30
D. 40

Answer 14

D. 40 percent

302.3.2
Protection of Structure - Stud cutting and notching

Question 15

Subslab soil exhaust ducts shall be permanently identified __________________ by means of a tag, stencil or other approved marking.

A. at a minimum of 10 foot intervals
B. every 5 feet
C. on their inner surface
D. within each floor level

Answer 15

D. within each floor level

512.5
Subslab Soil Exhaust Systems - Identification

Question 16

Studwall cavities and the spaces between solid floor joists to be utilized as air plenums shall comply with the following conditions;

1. Stud cavities or spaces shall …
2. Stud cavities or spaces shall ___________.
3. Stud wall cavities or spaces shall ______________.
4. Stud wall cavities and joist space plenums shall comply with the floor penetration protection requirements of the IBC.
5. Stud wall cavities and joist space plenums shall …

A. be utilized as a plenum for supply air.
B. not be part of a required fire-resistance-rated assembly
C. not convey air from more than one floor level.
D. not be isolated from adjacent concealed spaces by approved fireblocking as required in the IBC.
D. B an C.

Answer 16

E. B and C
2/B. Stud cavities or spaces shall not be part of a required fire-resistance-rated assembly.
3/C. Stud wall cavities or spaces shall not convey air from more than one floor level.

602.3
Plenums - Stud Cavity and Joist Space Plenums

Question 17

In ground source heat pump loop systems, before connection (header) trenches are backfilled, the assembled loop system shall be pressure tested with water at ______ with no observed leaks. Flow and pressure loss testing shall be performed and the actual flow rates and pressure drops shall be compared to the calculated design values. if actual flow rate or pressure drop values differ from calculated design values by more than 10 percent, the problem shall be identified and corrected.

A. 60 psi, for 60 minutes
B. 150 psi, for 15 minutes
C. 100 psi, for 30 minutes
D. 30 psi, for 10 minutes

Answer 17

C. 100 psi, for 30 minutes

1208.1.1
Hyrdronics - Tests - Ground source heat pump loop system.

Question 18

A shutoff valve shall be installed at the connection to each appliance where more than _______ fuel-oil-burning appliance(s) is/are installed.

A. one
B. two
C. three
D. four

Answer 18

A. one

1307.2
Appliance Shutoff