Job Information Level 2: Lesson 9 Fire-Resistant Wall and Floor Assembly Penetrations Flashcards Preview

1st Year Apprenticeship Final (Cumulative) > Job Information Level 2: Lesson 9 Fire-Resistant Wall and Floor Assembly Penetrations > Flashcards

Flashcards in Job Information Level 2: Lesson 9 Fire-Resistant Wall and Floor Assembly Penetrations Deck (25)
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1
Q

What National Electrical Code (NEC) chapter covers the requirements for firestopping?
Select one:

a.
1

b.
2

c.
3

d.
5

A

3

2
Q

A cable assembly that enters a fire resistive wall and exits the opposite side of the wall is considered to be a ? penetration.
Select one:

a.
joint

b.
membrane

c.
passive

d.
through

A

Through

3
Q

When penetrating a concrete fire-resistive wall or floor assembly with RMC, it is not acceptable to use mortar to fill the annular space.
Select one:
True
False

A

False

4
Q

When a conduit passes through only one side of a fire-resistive wall assembly, it is considered as a ? penetration.
Select one:

a.
joint

b.
membrane

c.
passive

d.
through

A

Membrane

5
Q

A listed electrical box for use in fire-resistive assemblies is being installed in a two-hour rated wall. Assuming there are no other electrical boxes on the opposite side of the wall, this installation does not require any penetration protection as long as the annular space between the electrical box and the wall membrane does not exceed ? .
Select one:

a.
1/16”

b.
1/8”

c.
1/4 “

d.
3/8 “

A

1/8 “

6
Q

A listed through penetration that identifies a specific manufacturer’s intumescent caulk can be installed using a different manufacturer’s caulk as long as which of the following requirements are met?
Select one:

a.
The caulk has the same ingredients.

b.
The foreman determines it to be suitable.

c.
The complete through penetration has been tested and listed with the different manufacturer’s caulk.

d.
None of the above.

A

The complete through penetration has been tested and listed with the different manufacturer’s caulk.

7
Q

Penetrations made in a(n) ? require an L rating with the approved firestop system.
Select one:

a.
firewall

b.
fire partition

c.
smoke barrier

d.
smoke partition

A

Smoke barrier

8
Q

During the ASTM E 814/UL 1479 fire test, temperatures may reach as high as ? during a four-hour period.
Select one:

a.
1,700°

b.
1,925°

c.
2,000°

d.
2,300°

A

2,000°

9
Q

The temperature requirement that a one-hour fire-resistive assembly must withstand during the ASTM E 814/UL 1479 is ? .
Select one:

a.
1,700°

b.
1,925°

c.
2,000°

d.
2,300°

A

1,700°

10
Q

The temperature requirement that a four-hour fire-resistive assembly must withstand during the ASTM E 814/UL 1479 is ? .
Select one:

a.
1,700°

b.
1,925°

c.
2,000°

d.
2,300°

A

2,000°

11
Q

The ? rating indicates the length of time (in hours) that the firestop assembly will not exceed 325°F on the unexposed surface during the fire test.
Select one:

a.
F

b.
L

c.
T

d.
W

A

T

12
Q

The ? rating indicates the length of time that the firestop system is able to prevent the passage of fire and heat through the opening in an assembly.
Select one:

a.
F
Correct

b.
L
Incorrect

c.
T
Incorrect

d.
W

A

F

13
Q

Which of the following is not included in a complete through penetration firestop system?
Select one:

a.
The backing material (mineral wool, insulation etc.)

b.
The fire-resistance rated assembly (wall/floor) materials

c.
The penetrating item (conduit, cable tray etc.)

d.
The sealant (caulk, putty, etc.)

e.
None of the above

A

None of the above

14
Q

Wood framed assemblies cannot be classified as fire-resistant assemblies.
Select one:
True
False

A

False

15
Q

Through penetrations in concrete floor assemblies can have the annular space filled with mortar provided that the penetrating item is ? .
Select one:

a.
HVAC duct

b.
metallic pipe

c.
PVC pipe (schedule 80)

d.
All of the above

A

Metalli pipe

16
Q

When testing a through penetration system, UL tests various different manufacturers’ products in the assembly. This process allows flexibility for the installer to choose from various manufacturers’ products.
Select one:
True
False

A

False

17
Q

Where can an Electrical Worker find information on listed through penetration systems?
Select one:

a.
Manufacturer specifiers’ guides or catalogs

b.
Manufacturer websites

c.
UL Fire Resistance Directory

d.
Any of the above

A

Any of the above

18
Q

Which of the following through penetration systems represents a wall is being penetrated?
Select one:

a.
W-L-1453
Correct

b.
F-W-1325
Incorrect

c.
F-C-1293
Incorrect

d.
Both b. and c.

A

W-L-1453

19
Q

Which of the following through penetration systems represents framed wall construction?
Select one:

a.
W-L-1453

b.
F-W-1325

c.
F-C-1293

d.
W-J-1625

A

W-L-1453

20
Q

A listed through penetration system that identifies a metallic pipe penetrating the fire-resistant assembly has a numeric value in the system number of ? .
Select one:

a.
0000-0999

b.
1000-1999

c.
2000-2999

d.
3000-3999

A

`1000-1999

21
Q

Which of the following is a false statement regarding engineering judgments?
Select one:

a.
An EJ can only be used for a specific job.

b.
An EJ does not need to be approved by the authority having jurisdiction (AHJ).

c.
An EJ is based on currently listed through penetration systems.

d.
An EJ must be issued by a qualified fire professional.

A

An EJ does not need to be approved by the authority having jurisdiction (AHJ).

22
Q

Which of the following is not a common type of firestop material?
Select one:

a.
Endothermic tape

b.
Intumescent wraps

c.
Putty

d.
Pillows

A

Endothermic tape

23
Q

What type of firestopping technology expands as much as 25 times in volume?
Select one:

a.
Ablative

b.
Endothermic

c.
Insulative

d.
Intumescent

A

Intumescent

24
Q

What type of firestopping material releases chemically bound molecules of water when exposed to heat?
Select one:

a.
Ablative

b.
Endothermic

c.
Insulative

d.
Intumescent

A

Endothermic

25
Q

When selecting a through penetration system, which of the following questions need to be considered?

I. How much will the material cost?
II. Is the penetration temporary or permanent?
III. What is the annular space of the opening?
IV. What is the hourly rating of the assembly?
V. What type of fire rated assembly is being penetrated?

Select one:

a.
I., III., and IV.

b.
II., III., and IV.

c.
III., IV., and V.

d.
I., II., III., IV., and V.

A

III., IV., and V.

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