Question 1

IECC is an acronym for

Accepted Answer

A) International Energy Cooperation Council. 
B) Institute for Energy Conservation and Codification. 
C) Institute for Energy Conversion and Conservation. 
D) International Energy Conservation Code. 
E) none of the above. 
A) International Energy Cooperation Council. 
B) Institute for Energy Conservation and Codification. 
C) Institute for Energy Conversion and Conservation. 
D) International Energy Conservation Code. 
E) none of the above.

Question 2

What is the R- value of air space in an attic? What is its corresponding R- value if it is lined with aluminum foil (assume warm climate zone so that heat flow is downward)?

Accepted Answer

R- value of attic ai

Question 3

Extruded polystyrene (XPS)insulation and polyisocyanurate (ISO)insulation are both closed- cell plastic foams, consisting essentially of the same chemical composition, and both have HCFC gas trapped in cell cavities. Yet their q- values are different. The q- value for ISO = 6.0 and that for XPS = 5.0. Why is that so?

Accepted Answer

ISO insulation board is has a facer lami

Question 4

In which situations is blown- in fiberglass insulation commonly used?

Accepted Answer

In attics of buildings in retr

Question 5

In which of the following locations is blown- in insulation most commonly used?

Accepted Answer

A) Attic spaces 
B) Stud wall cavities 
C) Top of a flat roof 
D) Masonry wall cavities 
A) Attic spaces 
B) Stud wall cavities 
C) Top of a flat roof 
D) Masonry wall cavities

Question 6

Fiberglass insulation is available in batts and blankets in standard widths. Give these width dimensions?

Accepted Answer

They are available in widths o

Question 7

Foamed concrete is generally used as insulation in

Accepted Answer

A) foundations. 
B) walls. 
C) steep roofs. 
D) all of the above. 
E) none of the above. 
A) foundations. 
B) walls. 
C) steep roofs. 
D) all of the above. 
E) none of the above.

Question 8

Within an air space (cavity), the mode of heat transfer is primarily by

Accepted Answer

A) conduction. 
B) convection. 
C) radiation. 
D) both A and B. 
E) both B and C. 
A) conduction. 
B) convection. 
C) radiation. 
D) both A and B. 
E) both B and C.

Question 9

In which of the following buildings will heat flow occur unidirectionally?

Accepted Answer

A) Intermittently heated buildings 
B) Intermittently cooled buildings 
C) Continuously heated or cooled buildings 
D) All of the above 
E) None of the above 
A) Intermittently heated buildings 
B) Intermittently cooled buildings 
C) Continuously heated or cooled buildings 
D) All of the above 
E) None of the above

Question 10

Aluminum foil is commonly used in building assemblies because it

Accepted Answer

A) lowers heat transfer due to conduction. 
B) lowers heat transfer due to radiation. 
C) lowers heat transfer due to convection. 
D) lowers heat transfer due to conduction as well as convection. 
E) lowers heat transfer due to convection as well as radiation. 
A) lowers heat transfer due to conduction. 
B) lowers heat transfer due to radiation. 
C) lowers heat transfer due to convection. 
D) lowers heat transfer due to conduction as well as convection. 
E) lowers heat transfer due to convection as well as radiation.

Question 11

The U- value and R- value of an assembly are related to each other by which relationship?

Accepted Answer

A) U + R = 1 
B) (U)(R)= 1.0 
C) U = R 
D) U2 + R2 = 1.0 
E) None of the above 
A) U + R = 1 
B) (U)(R)= 1.0 
C) U = R 
D) U2 + R2 = 1.0 
E) None of the above

Question 12

The emissivity of a material lies between

Accepted Answer

A) 1 and 2. 
B) 0 and 100. 
C) 0 and 1. 
D) 1 and 10. 
E) none of the above. 
A) 1 and 2. 
B) 0 and 100. 
C) 0 and 1. 
D) 1 and 10. 
E) none of the above.

Question 13

Apart from the climate of the location, the other factors that affect energy- conscious building design are

Accepted Answer

A) building orientation and building shape. 
B) building envelope. 
C) site conditions. 
D) all of the above. 
E) A and B. 
A) building orientation and building shape. 
B) building envelope. 
C) site conditions. 
D) all of the above. 
E) A and B.

Question 14

Is the effective R- value of the following two walls the same or different? Explain.
(a)A 4- in.- thick metal stud wall with studs spaced 24 in. on center and 4- in- thick fiberglass insulation between studs.
(b)A 4- in.- thick metal stud wall with studs spaced 12 in. on center and 4- in- thick fiberglass insulation between studs.

Accepted Answer

Wall (a)will have a higher eff

Question 15

The R- value of a single glass sheet, including the film resistances, is approximately

Accepted Answer

A) 4.0. 
B) 0. 
C) 3.0. 
D) 2.0. 
E) 1.0. 
A) 4.0. 
B) 0. 
C) 3.0. 
D) 2.0. 
E) 1.0.

Question 16

The R- value of a 1- in.- thick extruded polystyrene board is 5.0. If the R- value of a 1- in.- thick brick wall is 0.2, how thick should the brick wall be to equal the R- value of 1- in.- thick extruded polystyrene?

Accepted Answer

A) 50 in. 
B) 10 in. 
C) 5 in. 
D) 2.5 in. 
E) None of the above 
A) 50 in. 
B) 10 in. 
C) 5 in. 
D) 2.5 in. 
E) None of the above

Question 17

The R- value of an assembly for air- to- air heat transfer is 20. What is its U- value?

Accepted Answer

R- value =

Question 18

The R- value of a single glass sheet, without considering the film resistances, is approximately

Accepted Answer

A) 4.0. 
B) 1.0. 
C) 3.0. 
D) 0. 
E) 2.0. 
A) 4.0. 
B) 1.0. 
C) 3.0. 
D) 0. 
E) 2.0.

Question 19

Within a solid, the mode of heat transfer is by

Accepted Answer

A) convection. 
B) radiation. 
C) conduction. 
D) both A and B. 
E) both B and C. 
A) convection. 
B) radiation. 
C) conduction. 
D) both A and B. 
E) both B and C.

Question 20

In climates where a concrete slab- on- ground must be insulated, it should be insulated under its entire area.

Accepted Answer

A) True 
 B)False

Exam 5: Properties of the Envelope-I Thermal Properties

IECC is an acronym for

What is the R- value of air space in an attic? What is its corresponding R- value if it is lined with aluminum foil (assume warm climate zone so that heat flow is downward)?

In which situations is blown- in fiberglass insulation commonly used?

In which of the following locations is blown- in insulation most commonly used?

Fiberglass insulation is available in batts and blankets in standard widths. Give these width dimensions?

Foamed concrete is generally used as insulation in

Within an air space (cavity), the mode of heat transfer is primarily by

In which of the following buildings will heat flow occur unidirectionally?

Aluminum foil is commonly used in building assemblies because it

The U- value and R- value of an assembly are related to each other by which relationship?

The emissivity of a material lies between

Apart from the climate of the location, the other factors that affect energy- conscious building design are

The R- value of a single glass sheet, including the film resistances, is approximately

The R- value of a 1- in.- thick extruded polystyrene board is 5.0. If the R- value of a 1- in.- thick brick wall is 0.2, how thick should the brick wall be to equal the R- value of 1- in.- thick extruded polystyrene?

The R- value of an assembly for air- to- air heat transfer is 20. What is its U- value?

The R- value of a single glass sheet, without considering the film resistances, is approximately

Within a solid, the mode of heat transfer is by

In climates where a concrete slab- on- ground must be insulated, it should be insulated under its entire area.

An Overview of the Building Delivery Process How Buildings Come Into Being

Design and Constructions Regulations

Loads on Buildings

Load Resistance the Structural Properties of Materials

Properties of the Envelope-II Air and Water Vapor Control

Fire and Smoke-Related Properties

Acoustical Properties of Materials

Principles of Joints and Sealants Expansion and Contraction Control

Principles of Sustainable Construction

Soils and Excavations

Below-Grade Construction Foundation Systems and Basements

Materials for Wood Construction-I Lumber

Materials for Wood Construction-Ii Engineered Wood Products, Fasteners, and Connectors

Wood Light-Frame Construction-I

Wood Light-Frame Construction-II

Structural Insulated Panel Construction

Material Steel and Steel Components

Structural Steel Construction

Cold-Formed Steel Construction

Lime, Portland Cement, and Concrete

Concrete Construction-I Formwork, Reinforcement, and Slabs-On-Ground

Concrete Construction-II Site-Cast and Precast Concrete Framing Systems

Masonry Materials-I Mortar and Brick

Masonry Materials-II Concrete Masonry Units, Natural Stone, and Glass Masonry Units

Masonry and Concrete Bearing Wall Construction

Exterior Wall Cladding-I Principles of Rainwater Infiltration Control

Exterior Wall Cladding-II Masonry, Precast Concrete, and Gfrc

Exterior Wall Cladding-III Stucco, Adhered Veneer, Eifs, Natural Stone, and Insulated Metal Panels

Glass, Glazing, and Light-Transmitting Plastics

Windows and Doors

Exterior Wall Cladding-Iv Wall System in Glass

Roofing-I Low-Slope Roofs

Roofing-I Steep Roofs

Stairs

Floor Coverings

Ceilings

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