Final Exam Part 2

71 Questions | By Laurenmariel | Updated: Mar 21, 2022 | Attempts: 489

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Chapter 9: Finishes

Questions and Answers

1.

Plaster of Paris is..
- A.
  
  A mixture of portland cement and water
- B.
  
  A compound of silica and calcium sulfate
- C.
  
  Relatively pure calcined gypsum
- D.
  
  Vitrified sodium sulfate
2.

What is released into the atmosphere when gypsum is heated?
- A.
  
  Oxygen
- B.
  
  Carbon dioxide
- C.
  
  Water
- D.
  
  Carbon monoxide
3.

What is the key benefit of using gypsum products in construction?
- A.
  
  It provides fire protection
- B.
  
  It provides structural stability
- C.
  
  It provides protection from corrosion and decay
- D.
  
  It provides security against vandalism
4.

What is the role of aggregates in plaster?
- A.
  
  To provide weight
- B.
  
  To increase workability
- C.
  
  To increase water tightness
- D.
  
  To provide dimensional stability
5.

Which substance is added to finish coat plasters to improve workability?
- A.
  
  Lime
- B.
  
  Aggregate
- C.
  
  Calcium chloride
- D.
  
  Resin
6.

What is the principle cementitious ingredient in stucco?
- A.
  
  Gypsum
- B.
  
  Portland cement
- C.
  
  Acrylic
- D.
  
  Lime
7.

Vermiculite is...
- A.
  
  An agent which retards the setting of plaster
- B.
  
  A light weight aggregate for plaster
- C.
  
  An agent which speeds the setting of plaster
- D.
  
  An additive designed to increase the workability of plaster
8.

Which product(s) cannot be applied directly to gypsum plaster, gypsum masonry, or gypsum lath?
- A.
  
  Gypsum plaster cannot be applied to these bases
- B.
  
  Portland cement plaster cannot be applied directly to these bases
- C.
  
  Neither gypsum plaster nor portland cement plaster can be applied directly to these bases
- D.
  
  Neither gypsum plaster nor portland cement plaster are restricted from direct application to these bases
9.

What restriction applied when plaster is to be applied directly to concrete surface?
- A.
  
  The surface of the concrete should not be sandblasted
- B.
  
  Rough lumber should not be used as forms for the concrete
- C.
  
  Form release oil should not be used on the formwork
- D.
  
  Muriatic acid should not be applied to the concrete
10.

Identify the coats of three-coat plaster work as applied to metal lath.
- A.
  
  Dash coat, gray coat, finish coat
- B.
  
  Scratch coat, gray coat, white coat
- C.
  
  Scratch coat, brown coat, finish coat
- D.
  
  Dash coat, brown coat, finish coat
11.

Which adjustments are allowed to a mix of portland cement plaster within three and one-half hours of the initial mixing?
- A.
  
  Retempering with additional water
- B.
  
  Remixing to restore plasticity
- C.
  
  Both retempering and remixing
- D.
  
  Neither retempering nor remixing
12.

Rich mixes of plaster, high in cement content, generally result in plaster with...
- A.
  
  Lower strength
- B.
  
  Greater economy
- C.
  
  Lower initial shrinkage
- D.
  
  Higher intital shrinkage
13.

Portland cement plaster should be applied over a level base in a uniform thickness..
- A.
  
  To achieve greater economy
- B.
  
  To reduce cracking
- C.
  
  To improve its appearance
- D.
  
  To increase speed
14.

Type X wallboard is...
- A.
  
  Water-resistant
- B.
  
  Sound-resistant
- C.
  
  Impact-resistant
- D.
  
  Fire resistant
15.

The core of water-resistant wall board is formulated with what type of additives?
- A.
  
  Asphaltic
- B.
  
  Acrylic
- C.
  
  Portland cement
- D.
  
  Aluminum oxide
16.

The type of gypsum board is perforated is...
- A.
  
  Backing board
- B.
  
  Sheathing
- C.
  
  Lath
- D.
  
  Formboard
17.

Regarding the attachment of gypsum board to wood members, staples are recommended only for attaching...
- A.
  
  Fire-resistant board
- B.
  
  The base ply in multi-ply construction
- C.
  
  Predecorated board
- D.
  
  Tapered board on the long dimension
18.

Identify the disadvantage of contact adhesive for installing gypsum board.
- A.
  
  Inability to bridge irregularities
- B.
  
  Cannot be used to bond wallboard to metal studs in demountable partitions
- C.
  
  Lacks significant long term strength
- D.
  
  Does not provide immediate bond
19.

What is the minimum temperature at which gypsum board should be installed?
- A.
  
  35 degrees F
- B.
  
  45 degrees F
- C.
  
  55 degrees F
- D.
  
  65 degrees
20.

Which surface of a space should first be clad with gypsum board first?
- A.
  
  Walls
- B.
  
  Ceilings
- C.
  
  Walls and ceiling should be clad simultaneously beginning at one end of the space and progressing toward the other
- D.
  
  Neither walls nor the ceiling are recommended to be clad first
21.

Caulking is recommended around the edges of partitions between apartment to...
- A.
  
  Reduce sound transmission
- B.
  
  Reduce the heat loss
- C.
  
  Increase the fire rating of the partition
- D.
  
  Reduce the need for trim
22.

In which circumstance can foill-backed gypsum board be used?
- A.
  
  As the backing for ceramic tile
- B.
  
  As the face ply in laminated two-ply construction
- C.
  
  Adjacent to a dead air space
- D.
  
  For laminating directly to masonry or concrete
23.

Where can gypsum board be used in exterior locations (if any)?
- A.
  
  As fascia boards
- B.
  
  On soffits
- C.
  
  On rake trim
- D.
  
  Gypsum board cannot be used in the exterior
24.

In which location is water-resistant gypsum board recommended for use?
- A.
  
  Shower room walls
- B.
  
  Shower room ceilings
- C.
  
  Sauna walls
- D.
  
  As a base for wall tile in tub-shower areas
25.

Partitions utilizing gypsum board..
- A.
  
  Can be made entirely of gypsum board except for metal runners at the floor and ceiling
- B.
  
  Required wood or metal framing for support
- C.
  
  Cannot be assembled with a masonry substrate
- D.
  
  Require threaded fasteners