Question 1

Which modes of heat transfer occur in gases, such as air?

Accepted Answer

Convection

Question 2

A concrete slab- on- ground does not require to be insulated in warm climates.

Accepted Answer

A) True 
 B)False

Question 3

The approximate R- value of an air space in a wall is

Accepted Answer

A) R- 2.5. 
B) R- 1. 
C) R- 2.0. 
D) R- 1.5. 
E) none of the above. 
A) R- 2.5. 
B) R- 1. 
C) R- 2.0. 
D) R- 1.5. 
E) none of the above.

Question 4

Which of the following insulating materials is available in the form of batts?

Accepted Answer

A) Expanded perlite 
B) Fiberglass 
C) Extruded polystyrene 
D) Insulating concrete 
E) None of the above 
A) Expanded perlite 
B) Fiberglass 
C) Extruded polystyrene 
D) Insulating concrete 
E) None of the above

Question 5

A building assembly with a higher U- value is thermally more insulating than one with a lower U- value.

Accepted Answer

A) True 
 B)False

Question 6

Explain the advantages of continuous insulation in envelope assemblies and why it is better to have the continuous insulation on the exterior face of the envelope. Where is inside placement of continuous insulation in the envelope desirable?

Accepted Answer

Continuous insulation in envelope assemb

Question 7

What is the U- value of the assembly in Question 2? Does this value represent air- to- air heat transfer through the assembly? Explain.

Accepted Answer

To provide an accurate answer to the que

Question 8

The coastal region of the western United States lies in

Accepted Answer

A) climate zone 2(
A) . 
B) climate zone 3(
A) . 
C) climate zone 1(
A) . 
D) climate zone 4(
A) . 
E) none of the above. 
A) climate zone 2(
A) . 
B) climate zone 3(
A) . 
C) climate zone 1(
A) . 
D) climate zone 4(
A) . 
E) none of the above.

Question 9

For the same thickness, which of the following materials has the highest R- value?

Accepted Answer

A) Extruded polystyrene 
B) Expanded polystyrene 
C) Polyisocyanurate 
D) Gypsum 
E) Fiberglass 
A) Extruded polystyrene 
B) Expanded polystyrene 
C) Polyisocyanurate 
D) Gypsum 
E) Fiberglass

Question 10

An 11- in. thick precast concrete curtain wall consists of a 3- in.- thick exterior layer of (normal- weight)concrete, 6- in.- thick interior layer of (normal- weight)concrete and a 2- in- thick XPS insulation sandwiched between the two concrete layers. What is the total R- value of the assembly, considering air- to- air heat transfer? q- value of normal- weight concrete = 0.15; q- value of XPS = 5.0

Accepted Answer

R- value of 3- in- thick concrete layer

Question 11

What is thermal mass?

Accepted Answer

Thermal mass (also called thermal capaci

Question 12

A concrete slab- on- ground requires to be insulated in cold climates. We generally do not insulate it by placing insulation under the entire slab. Why?

Accepted Answer

Because the economic benefit o

Question 13

Which type of insulation is preferred for below ground insulation (basements and concrete slabs- on- ground)?

Accepted Answer

The insulation for such uses must be: (i

Question 14

What is the difference between: (i)a multilayer assembly in series combination and (ii)a multilayer assembly in parallel combination?

Accepted Answer

Multilayer assembly in series combinatio

Question 15

The R- value of a concrete tilt- up wall is 1.20. What is its R- value considering air- to- air heat transfer through it?

Accepted Answer

To obtain the R- value for air- to- air

Question 16

What is the R- value of a vertical air space? What is its R- value if one surface of the air space is lined with aluminum foil?

Accepted Answer

R- value of a vertic

Question 17

Insulating materials that contain HCFC gas within their cells have a higher R- value than those that contain air within their cells.

Accepted Answer

A) True 
 B)False

Question 18

What is the unit of energy in U.S. system of units? In SI system of units?

Accepted Answer

"Btu" in U.S. system

Question 19

Name the foamed insulating materials that are available in board formation.

Accepted Answer

The answer of Name the foamed insulating materials that are...

Question 20

The R- value of a building assembly in the SI system is referred to as the

Accepted Answer

A) SI- value. 
B) R- value (SI). 
C) RS- value. 
D) RSI- value. 
E) none of the above. 
A) SI- value. 
B) R- value (SI). 
C) RS- value. 
D) RSI- value. 
E) none of the above.

Exam 5: Properties of the Envelope-I Thermal Properties

Which modes of heat transfer occur in gases, such as air?

A concrete slab- on- ground does not require to be insulated in warm climates.

The approximate R- value of an air space in a wall is

Which of the following insulating materials is available in the form of batts?

A building assembly with a higher U- value is thermally more insulating than one with a lower U- value.

Explain the advantages of continuous insulation in envelope assemblies and why it is better to have the continuous insulation on the exterior face of the envelope. Where is inside placement of continuous insulation in the envelope desirable?

What is the U- value of the assembly in Question 2? Does this value represent air- to- air heat transfer through the assembly? Explain.

The coastal region of the western United States lies in

For the same thickness, which of the following materials has the highest R- value?

What is thermal mass?

A concrete slab- on- ground requires to be insulated in cold climates. We generally do not insulate it by placing insulation under the entire slab. Why?

Which type of insulation is preferred for below ground insulation (basements and concrete slabs- on- ground)?

What is the difference between: (i)a multilayer assembly in series combination and (ii)a multilayer assembly in parallel combination?

The R- value of a concrete tilt- up wall is 1.20. What is its R- value considering air- to- air heat transfer through it?

What is the R- value of a vertical air space? What is its R- value if one surface of the air space is lined with aluminum foil?

Insulating materials that contain HCFC gas within their cells have a higher R- value than those that contain air within their cells.

What is the unit of energy in U.S. system of units? In SI system of units?

Name the foamed insulating materials that are available in board formation.

The R- value of a building assembly in the SI system is referred to as the

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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