Final Exam Part 2

71 Questions | Total Attempts: 229

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Chemical Bond Quizzes & Trivia

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

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