Chapter 32

Question 1

A stick-built glass curtain wall consists of:

a. mullions and glass
b. rails and glass
c. mullions, rails, and glass

Answer 1

c. mullions, rails, and glass

Question 2

A unitized glass curtain wall consists of:

a. mullions and glass
b. rails and glass
c. mullions only
d. preassembled units and glass

Answer 2

preassembled units and glass

Question 3

Glass curtain walls in which aluminum framing sections are specially profiled for a particular project are:
a. fairly common because the cost of custom profiles can be recovered from one large project
b. uncommon because of the extremely high cost of manufacturing custom profiles
c, none of the above

Answer 3

A.

Question 4

In a stick-built glass curtain wall, the mullions are typically spaced at:

a. 2ft to 4 ft on center
b. 4ft to 6ft on center
c. 6ft to 10 ft on center

Answer 4

b.

Question 5

In a stick-built glass curtain wall, the rails are typically space at:

a. 2ft to 4 ft on center
b. 4ft to 6ft on center
c. 6ft to 10 ft on center
d. as needed for the project

Answer 5

d.

Question 6

A stick-built glass curtain wall is anchored to the building’s structure through:

a. mullions
b. rails
c. both mullions and rails

Answer 6

a. mullions

Question 7

In a single-span mullion system for a glass curtain wall:

a. one dead-load anchor is provided at every floor level
b. two dead-load anchors are provided at every floor level
c. none of the above

Answer 7

a.

Question 8

In a twin-span mullion system for a glass curtain wall:

a. one dead-load anchor is provided at every floor level.
b. two dead-load anchors are provided at every floor level
c. one dead-load anchor is provided at every alternate floor level.

Answer 8

c.

Question 9

In a single span mullion system for a glass curtain wall:

a. only one expansion anchor is provided for the entire height of the wall.
b. one expansion anchor is provided at every floor level.
c. none of the above

Answer 9

a.

Question 10

In a twin-span mullion system for a glass curtain wall:

a. one expansion anchor is provided at every floor level
b. two expansion anchors are provided at every floor level
c. one expansion anchor is provided at every alternate floor level

Answer 10

c.

Question 11

The width of an expansion joint between adjacent mullion lengths in a typical stick-built glass curtain wall:

a. is generally 1in. standard
b. must be determined on a project by project basis
c. is generally 1/2 in. standard
d. is generally 1/16 in standard

Answer 11

b. must be determined on a project by project basis

Question 12

The width of an expansion joint in the rails of a typical stick-built glass curtain wall:

a. is 1 in. standard
b. is 1/2in. standard
c. is 1/32 in. standard

Answer 12

c.

Question 13

In a stick-built glass curtain wall, the mullions are erected first and the rails are inserted between them. True or false?

Answer 13

true

Question 14

A shear block is used:

a. at the mullion expansion joint to allow the mullion to move
b. at the expansion anchor of a mullion
c. to connect a rail to adjacent mullions

Answer 14

c.

Question 15

A glass curtain wall in which the glass is pressure plate captured is glazed from the:

a. building’s interior
b. building’s exterior
c. a or b

Answer 15

b. building’s exterior

Question 16

As shown in this text, a glass curtain wall in which the glaze is structural silicone adhered is glazed from the :

a. building’s interior
b. building’s exterior
c. a or b

Answer 16

b. building’s exterior

Question 17

In a glass curtain wall with pressure plate-captured glass, there are:

a. no covers
b. covers in both horizontal and vertical directions
c. covers only in the horizontal direction
d. covers only in the vertical direction

Answer 17

b.

Question 18

As shown in the text, a glass curtain wall with structural silicone-adhered glass:

a. has no exterior covers
b. has exterior covers in both horizontal and vertical directions
c. has exterior covers only in the horizontal direction
d. none of the above

Answer 18

c.

Question 19

A typical glass curtain wall is provided with weep holes to drain infiltrating water even though it is sealed from both the inside and the outside with gaskets or tapes. true or false?

Answer 19

true

Question 20

The air infiltration rate through a glass curtain wall is specified in terms of:

a. pounds per square feet
b. cubic feet per minute
c. none of the above
d. cubic feet per minute under a given inside-outside air pressure difference

Answer 20

d. cubic feet per minute under a given inside-outside air pressure difference

Question 21

In a glass wall supported by cable trusses, the glass:

a. bears on rails
b. is connected to mullions
c. a and b
d. none of the above

Answer 21

d. none of the above

Question 22

In a cable-net supported glass wall, the glass:

a. bears on rails
b. is connected to mullions
c. a and b
d. none of the above

Answer 22

d. none of the above

Question 23

The environmental performance requirements for a storefront are generally much higher than those for a glass curtain wall. True or false?

Answer 23

False