Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Carpentry Level 3 > I5 - Describe Drywall > Flashcards

I5 - Describe Drywall Flashcards

1
Q

What is Type-C drywall board?

A

Fire-rated board that has a better fire resistance than Type X due to additives.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where is backer board used?

A

As an underboard in multi-layer applications.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the standard lengths of drywall board?

A

7, 8. 10, 12 and 14.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the purpose of controlled density board?

A

Controlled Density Boards - Intended to be installed on ceilings to prevent sagging. Typical CD board 1/2 “ thick so that offcuts and extras can be used on walls.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Why is moisture-resistant drywall not recommended for use behind ceramic tile in a shower?

A

Moisture-resistant drywall is not actually waterproof. Use waterproof cement board.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What type of trim piece is used around a bifold door opening?

A

J-Bead

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What method of applying corner bead is considered best?

A

Glued-on corner beads - faster and resists cracking

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the purpose of drywall clips?

A

To support board where backing was missed.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

When is a meth taped used?

A

When speed is a concern used with quick-dry.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When is mesh tape used?

A

When speed is a concern, used with quick-dry mud.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the advantage of using topping compound as opposed to all-purpose compound?

A

Topping compounds shrink less than all purpose compounds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Gypsum wallboard is known as:

A

Gyprock, sheetrock and drywall.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Sheets come in what thickness?

A

1/4 to 5/8” thick.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Drywall comes in what widths?

A

48” or 54” and 24”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Drywall comes in what lengths?

A

7 to 14’ long - Standard lengths of 7’, 8’, 10’, 12’, and 14’

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is Drywall?

A

Made from gypsum plaster mixed with fiber that is sandwiched between two layers of heavy paper.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Standard gypsum is used in what applications?

A

Residential and commercial buildings in single-layer application.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Why is textured ceiling mainly done?

A

To reduce labor costs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Fire rated, or Type X board:

A

Fire resistant board that is used to build fire-separations in multi-family buildings and between commercial buildings.

20
Q

How does Type X improve fire-resistance?

A

Adding reinforcing fibers to the core.

1) Fibres reduce cracking when exposed to fire, increasing length of time before failure.

2) Type C has even more fibres than type X and has a shrinkage-compensating additive.

21
Q

Additive in Type C Drywall expands in heat and helps drywall how?

A

Additive in Type C drywall expands under heat and compensates for shrinkage.

22
Q

Type C can create many hour rated exterior curtain wall, interior partition and shaft walls?

A

Type C can create 2 hour exterior curtain walls and interior partition

4 hour-rated shaft walls.

23
Q

Backing board is used in:

A

Multi-Layer application. Face of backer board does not have paper-face, edges of backer board not finished or tapered either.

24
Q

Moisture resistant drywall is used in:

A

Bathrooms and kitchens where higher than normal moisture levels occur.

Not a replacement for Cement-based wallboards which are fully waterproof.

25
Q

Gypsum sheathing boards:

A

High moisture resistance for exterior use:

Treated core, type x and type c.

26
Q

Controlled Density board used in:

A

1/2” thick, able to span 24” on ceilings without sagging. Heavier than 1/2” board and more difficult to cut.

27
Q

Vinyl board is:

A

Plastic surfaced standard drywall board. Extra care taken to avoid damaging corners or edges of these sheets as they are often exposed after being installed.

28
Q

Core board or Shaft liner

A

Thick sheet of fire resistant drywall that is used around Elevator shafts and fire exits for fire protection. Sheets can be up to 2” thick.

29
Q

Type X lath is a fire-resistant drywall board used for :

A

It is used under a skim coat plaster finish.

30
Q

Corner bead:

A

Drywall finish is completed at exterior corners with corner beads. Bead is applied over board and then filled with drywall compound.

Glue on is faster and resists cracking - rather than nail.

30
Q

Lead-lined board

A

Used for finishing the walls of X-Ray rooms. The lead lining protects the hospital staff from exposure to radiation from the X-Ray equipment.

31
Q

J Bead - is used for:

A

Around bi-fold door openings.

32
Q

Around a window when applying a drywall return, what sort of application would you use?

A

Plastic J bead, it protects drywall from moisture and will not rust.

33
Q

Bugle around the head of the screw is rounded where it fits fits into drywall why?

A

Reduce the tearing of the paper surface.

34
Q

Drywall clips are used when?

A

Where backing for screwing is missing.

35
Q

Control joints are used:

A

When there are long expanses of finished drywall. They provide an allowance for expansion and contraction to reduce cracking in the drywall.

36
Q

Acoustic Sealants are used:

A

All gaps around openings must be sealed when drywall is installed as part of a sound barrier or when used as a vapor barrier.

37
Q

Gaskets:

A

Gaskets are used between the drywall and other surfaces to create an airtight barrier when drywall is used as part of an airtight drywall system.

38
Q

Drywall surface is made vapor-proof by using:

A

Enamel paint

39
Q

Expanded Metal Lath:

A

Where covered ceiling or other architectural features are built, expanded metal lath is used to form a base for the plaster finish.

40
Q

Tape and Filling Compound for two reasons:

A

1) Provide a smooth and uniform surface for painting and wallpapering
2) Make a continuous firestop

41
Q

Production work is done with what mudding tape?

A

Paper tape

42
Q

Why is paper tape feathered?

A

To allow filling the joint without showing the edge of the tape.

43
Q

Main reason why layers of filler have to be applied:

A

To fill in the depressions left by the shrinking filler.

44
Q

Premixing filling compound is preferred because:

A

It is more efficient to use and has a smoother texture than the job-mixed compound.

45
Q

All-purpose compound is suitable for:

A

Applying tape, second coating and finish coating. Can be bought as powder or pre-mixed containers.

46
Q

Topping compound advantages:

A

Shrinks less than all-purpose compound and is easier to sand.

Carpentry Level 3 (60 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions