Ch 5 Interior Finishes

Question 1

Interior finishes

Answer 1

Materials used for exposed face of the wall and ceiling.

Question 2

Trim should not exceed what % of wall and ceiling area?

Answer 2

Trim should not exceed 10 % of wall and ceiling area

Question 3

Flame spread

Answer 3

Movement of flame away from ignition source

Question 4

Surface burning characteristics

Answer 4

Speed flame with spread over a surface

Question 5

How can flame spread be predicted

Answer 5

By surface burning characteristics

Question 6

What’s the most significant factor in fuels burn rate

Answer 6

Combination of fuel and available oxygen

Another factor is manner in which the interior finish is mounted

Question 7

Building code may require materials with a greater surface burning rate to be installed over what type of material

Answer 7

Noncombustible

Question 8

Paint and wallpaper should be no thicker than?

Answer 8

Paint and wallpaper should be no thicker than 1/28 inch

Question 9

When is carpet tested?

Answer 9

When used as interior wall finish

Question 10

Types of fire retardant coatings

Answer 10

Intumescent coatings
Mastics
Paints
Cement Fibers

Question 11

Intumescent coatings

Answer 11

Thick puffy coating that expands and insulates

Question 12

How are fire retardant coatings applied

Answer 12

Specific rate of square feet

Question 13

Ceiling contribute to void spaces T or F?

Answer 13

True

Question 14

Degree of fire resist required for walls or partitions depends on what?

Answer 14

Purpose of components

Question 15

Fire rated floor and ceiling assemblies for Multi story buildings require

Answer 15

Structural fire resistance and prevent verticals spread or fire

Question 16

Compartments with rated enclosures can be used for ?

Answer 16

Areas of refuge

Question 17

Fire walls are used for what purpose

Answer 17

Limit fire spread

Question 18

Freestanding walls are self supporting in regards to what type of loads

Answer 18

Vertical loads

Question 19

What type of construction are freestanding walls usually found

Answer 19

Type III and Type V

Question 20

Freestanding walls but be able to resist lateral loads of?

Answer 20

Freestanding walls but be able to resist lateral loads of at least 5 pounds per square foot

Question 21

Parapet wall height above a combustible roof

Answer 21

Code varies between 18-36 inches

Question 22

Parapet walls can terminate at the underside of a noncombustible roof provided

Answer 22

Parapet walls can terminate at the underside of a noncombustible roof provided that the roof has a Class B low combustibility covering

Question 23

Fire walls without parapets that may not be identifiable from the outside generally have what type of rating

Answer 23

2 hr

Question 24

For a fire wall to be 4 hour rated it must be constructed with what type of material

Answer 24

Masonry or concrete

Question 25

IBC permits combustible materials to be framed into a masonry or concrete fire wall from opposite sides provided?

Answer 25

4 inch separation between the ends of structural members

Question 26

In structures as close as 18 inches apart, what may take place if clearance space for exposure protection

Answer 26

Rated construction

Question 27

Fire walls maybe eliminated if they have

Answer 27

Automatic sprinkles

Question 28

What’s the purpose of an enclosure wall?

Answer 28

Block verified spread of fire

Question 29

Enclosure walls are required to have fire resistance rating of 1-2 hours depending on what?

Answer 29

Height of building

Question 30

Buildings 4 stories or lower require what. Amount of enclosure rating ?

Answer 30

1 hr rating

Question 31

Buildings 4 stories or higher require what. Amount of enclosure rating

Answer 31

2 hrs fire enclosure

Question 32

Most common material used in enclosure walls

Answer 32

Gypsum

Question 33

Curtain walls, not Curtain Boards are

Answer 33

Non-load bearing walls attached to exterior. Like a veneer

Question 34

What protects opening in fire rated walls?

Answer 34

Fire doors

Question 35

Fire doors are rated in increments of

Answer 35

20 min to 4 hours

Question 36

What rated doors are used primarily for smoke barriers and openings to corridors

Answer 36

1/2 hour to 1/3 hour

Question 37

Class A fire doors used for

Answer 37

Openings in fire walls

Question 38

Class B fire doors

Answer 38

Vertical shafts and openings in 2hr rated partitions

Question 39

Class C fire doors

Answer 39

Between rooms and corridors , 1st or less fire rating

Question 40

Class D fire walls

Answer 40

Exterior openings with severe fire exposure from outside

Question 41

Class E Fire Doors

Answer 41

Exterior openings with moderate or light fire exposure from outside

Question 42

To effectively block fire spread, fire door assemblies must have fire resistance similar to what?

Answer 42

Fire rated walls

Question 43

If a fire wall has a greater than 2 hr rating what type of fire door it required?

Answer 43

3-4 hrs

Question 44

Fire fighters should do what to a rolling overhead door prior to proceeding through it ?

Answer 44

Attempt to secure and block the channel

Question 45

Horizontal sliding doors are usually help in place by?

Answer 45

Fusible link

Question 46

Swinging doors that protect stairwell enclosures and corridors have ratings between

Answer 46

20 min and 3 hours

Question 47

Which way must swinging doors swing?

Answer 47

Direction of exit travel

Question 48

When fire doors are installed in a Frame, all parts of frame must withstand fire exposure T or F.

Answer 48

True

Question 49

Fire doors with what rating can be equipped with fire glazing windows

Answer 49

Doors with upto 3 hr rating can be equipped with glazing.

Question 50

Fire doors with ratings of 1-3 hours can having glazing upto how many square inches?

Answer 50

Fire doors with ratings of 1-3 hours can having glass panels upto 100 square inches in area per door

Question 51

Fire doors with ratings of 1/2-1/3 can have glass panels for which they are?

Answer 51

Tested

Question 52

Louvers

Answer 52

Horizontal slats angled to permit ventilation

Question 53

Fire door testing is done in accordance with NFPA 252 using what test

Answer 53

ASTM E- 152

Question 54

What’s the primary concern of testing of fire doors

Answer 54

They must remain in the frame during the flame test

Question 55

In test sing of fire doors, intermittent flame is permitted after how long?

Answer 55

After the first 30 min of testing

Question 56

If an opening in a fire walls is no longer needed, what material should be used in wall construction?

Answer 56

Equivalent of the rating of the wall

Question 57

What’s another criteria for fire door rating regarding hose streams

Answer 57

Fire door must remain in place when subjected to hose stream immediately following fire tests

Question 58

What rated doors may not be subject to hose tests, depending on intended application?

Answer 58

1/3 hour rating depending on intended application

Question 59

Markings on fire rated doors include

Answer 59

Door type Rating in hours Testing lab info