Question 1

The anchors in a brick veneer wall assembly provide

Accepted Answer

A) gravity load support to both veneer and backup. 
B) gravity load support to the veneer. 
C) lateral load support to the veneer. 
D) lateral load support to both veneer and backup. 
A) gravity load support to both veneer and backup. 
B) gravity load support to the veneer. 
C) lateral load support to the veneer. 
D) lateral load support to both veneer and backup. C

Question 2

Using sketches, explain the commonly used shapes of precast concrete wall panels.

Accepted Answer

Precast concrete wall panels commonly use a variety of shapes to meet different design and structural requirements. Some commonly used shapes include:

1. Rectangular panels: These are the most common shape for precast concrete wall panels. They are versatile and can be used for a wide range of applications.

2. L-shaped panels: These panels have a 90-degree bend and are often used for corner elements or to create a change in direction in the wall.

3. T-shaped panels: These panels have a horizontal section that extends from the vertical section, creating a T-shape. They are often used for load-bearing walls or to create openings for windows and doors.

4. Z-shaped panels: These panels have a zig-zag shape and are used to create visual interest in the wall or to provide additional structural support.

5. Custom shapes: In addition to these common shapes, precast concrete wall panels can also be custom-designed to meet specific project requirements, such as curved panels or panels with intricate patterns or textures.

These different shapes allow precast concrete wall panels to be used in a wide range of architectural and structural applications, providing both aesthetic appeal and structural integrity. Sketches can further illustrate how these shapes are used in practice.

Question 3

The glass fiber- reinforced concrete (GFRC)skin is connected with cold- formed steel (CFS)backup frame with anchors. What are these anchors made of?

Accepted Answer

3/8- in- diameter smooth galvanized steel reinforcing bars.

Question 4

A typical anchor used with a brick veneer and CMU backup wall assembly consists of a

Accepted Answer

A) two- piece anchor, of which one is an integral part of the joint reinforcement in the CMU backup wall and the other is embedded in the veneer's mortar joint. 
B) three- piece anchor, of which two are fastened to the CMU backup wall and the other is embedded in the veneer's mortar joint. 
C) two- piece anchor, of which one is embedded in the CMU backup wall and the other is embedded in the veneer's mortar joint. 
D) A and B. 
E) A and C. 
A) two- piece anchor, of which one is an integral part of the joint reinforcement in the CMU backup wall and the other is embedded in the veneer's mortar joint. 
B) three- piece anchor, of which two are fastened to the CMU backup wall and the other is embedded in the veneer's mortar joint. 
C) two- piece anchor, of which one is embedded in the CMU backup wall and the other is embedded in the veneer's mortar joint. 
D) A and B. 
E) A and C.

Question 5

The backup wall in a brick veneer wall assembly consists of

Accepted Answer

A) a CMU wall. 
B) a reinforced- concrete wall. 
C) a wood or steel stud wall. 
D) all of the above. 
E) B and C only. 
A) a CMU wall. 
B) a reinforced- concrete wall. 
C) a wood or steel stud wall. 
D) all of the above. 
E) B and C only.

Question 6

The GFRC skin is obtained by

Accepted Answer

A) applying the mix with a trowel. 
B) casting the GFRC mix in a mold similar to casting a precast concrete member. 
C) spraying the mix over a mold. 
D) any of the above, depending on the panel fabricator. 
A) applying the mix with a trowel. 
B) casting the GFRC mix in a mold similar to casting a precast concrete member. 
C) spraying the mix over a mold. 
D) any of the above, depending on the panel fabricator.

Question 7

The anchors used to anchor the brick veneer to the backup wall are generally two- piece anchors to allow differential movement between the veneer and the backup

Accepted Answer

A) within the plane of the veneer. 
B) perpendicular to the plane of the veneer. 
C) in all three principal directions. 
D) none of the above. 
A) within the plane of the veneer. 
B) perpendicular to the plane of the veneer. 
C) in all three principal directions. 
D) none of the above.

Question 8

Explain what a brick ledge is and its function.

Accepted Answer

A brick ledge is a depression in the fou

Question 9

The minimum width of the air space generally used between a brick veneer and a wood stud backup wall is

Accepted Answer

A) 1 in. 
B) 1- 1/2 in. 
C) 2 in. 
D) 2- 1/2 in. 
E) 3 in. 
A) 1 in. 
B) 1- 1/2 in. 
C) 2 in. 
D) 2- 1/2 in. 
E) 3 in.

Question 10

In a brick veneer wall assembly, how wide is the gap between the shelf angle and the brick veneer below the shelf angle?

Accepted Answer

This gap must be calculated ba

Question 11

Is a brick- veneer wall an anchored- veneer wall or an adhered- veneer wall?

Accepted Answer

An anchore

Question 12

A bond break such as a polyethylene sheet membrane is generally used between the concrete and bricks in a brick- faced precast concrete curtain wall panel.

Accepted Answer

A) True 
 B)False

Question 13

The number of bearing supports in a precast concrete curtain wall panel must be

Accepted Answer

A) one. 
B) two. 
C) three. 
D) four. 
E) between three and six. 
A) one. 
B) two. 
C) three. 
D) four. 
E) between three and six.

Question 14

What is the required width of air space between the veneer and the backup?

Accepted Answer

In low- rise, residential- typ

Question 15

The maximum distance permitted by the code between the inside face of the veneer and the outside face of the backup is 4- 1/2 in. With this restriction, what is the maximum thickness of insulation that can be used in the space between the veneer and the backup and why?

Accepted Answer

2- 1/2 in. maximum thickness f

Question 16

In a brick veneer wall assembly, the brick veneer over a wall opening is supported on a galvanized steel lintel angle, which rests on wall segments on either side of the opening. To which element in the assembly is the lintel angle anchored?

Accepted Answer

The lintel angle is

Question 17

Because the veneer and backup in a brick veneer assembly are made of different materials and are exposed to different temperature variations, they expand and contract at different rates in their own vertical planes. Therefore, the anchors that connect the veneer to the backup should allow these movements to be unrestricted. Can this requirement be met by using one- piece anchors? If not explain, why not?

Accepted Answer

Because both the veneer and backup move

Question 18

In general, a CMU- backed brick veneer is more forgiving of construction and workmanship deficiencies than a steel stud- backed brick veneer.

Accepted Answer

A) True 
 B)False

Question 19

In a brick veneer assembly with a steel stud backup wall, the design of studs is generally governed by

Accepted Answer

A) the deflection of studs to withstand lateral loads. 
B) the shortening of studs to withstand gravity loads. 
C) the compressive strength of studs to withstand gravity loads. 
D) the bending strength of studs to withstand lateral loads. 
E) any one of the above, depending on the wall. 
A) the deflection of studs to withstand lateral loads. 
B) the shortening of studs to withstand gravity loads. 
C) the compressive strength of studs to withstand gravity loads. 
D) the bending strength of studs to withstand lateral loads. 
E) any one of the above, depending on the wall.

Question 20

How many tiebacks is a precast concrete curtain (PCC)wall panel provided with and where are they located?

Accepted Answer

Tiebacks are generally provide

Exam 28: Exterior Wall Cladding-II Masonry, Precast Concrete, and Gfrc

The anchors in a brick veneer wall assembly provide

Using sketches, explain the commonly used shapes of precast concrete wall panels.

The glass fiber- reinforced concrete (GFRC)skin is connected with cold- formed steel (CFS)backup frame with anchors. What are these anchors made of?

A typical anchor used with a brick veneer and CMU backup wall assembly consists of a

The backup wall in a brick veneer wall assembly consists of

The GFRC skin is obtained by

The anchors used to anchor the brick veneer to the backup wall are generally two- piece anchors to allow differential movement between the veneer and the backup

Explain what a brick ledge is and its function.

The minimum width of the air space generally used between a brick veneer and a wood stud backup wall is

In a brick veneer wall assembly, how wide is the gap between the shelf angle and the brick veneer below the shelf angle?

Is a brick- veneer wall an anchored- veneer wall or an adhered- veneer wall?

A bond break such as a polyethylene sheet membrane is generally used between the concrete and bricks in a brick- faced precast concrete curtain wall panel.

The number of bearing supports in a precast concrete curtain wall panel must be

What is the required width of air space between the veneer and the backup?

The maximum distance permitted by the code between the inside face of the veneer and the outside face of the backup is 4- 1/2 in. With this restriction, what is the maximum thickness of insulation that can be used in the space between the veneer and the backup and why?

In a brick veneer wall assembly, the brick veneer over a wall opening is supported on a galvanized steel lintel angle, which rests on wall segments on either side of the opening. To which element in the assembly is the lintel angle anchored?

In general, a CMU- backed brick veneer is more forgiving of construction and workmanship deficiencies than a steel stud- backed brick veneer.

In a brick veneer assembly with a steel stud backup wall, the design of studs is generally governed by

How many tiebacks is a precast concrete curtain (PCC)wall panel provided with and where are they located?

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-I Thermal Properties

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-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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