Question

2. is used for the core of solid gypsum partitions. Predecorated Veneer plastic X-rock Coreboard 3....

2. is used for the core of solid gypsum partitions.

  1. Predecorated
  2. Veneer plastic
  3. X-rock
  4. Coreboard

3. has a special fire-resistant core encased in a moisture-repellent paper.

  1. Liner board
  2. Blue board
  3. Tapered gypsum
  4. Regular gypsum panels

4. has a core of Portland cement reinforced with a glass fiber mesh embedded in both sides

  1. Coreboard
  2. Drywall
  3. Wonder board
  4. Sheetrock

5. For laminating gypsum boards to each other adhesive is used.

  1. contact
  2. construction
  3. drywall
  4. drywall stud

6. When single-fastening gypsum panels, fasteners are spaced inches OC on ceilings and 8 inches OC on walls.

  1. a minimum of 12
  2. approximately 8
  3. a maximum of 7
  4. no more than 6

7. Corner bead is used during drywall application to .

  1. replace joint compound
  2. prevent corner pieces from touching
  3. make corner pieces plumb
  4. reinforce and protect exterior corners

8. The fastest setting type joint compound will harden in .

  1. as little as 20 to 30 minutes
  2. no less than 45 minutes
  3. approximately 4 hours
  4. about 6 to 8 hours

9. Control joints are metal strips with flanges on both sides of a -inch, V-shaped slot.

  1. ¼
  2. ½
  3. ¾

10. In cold weather, the interior temperature must be a before and during application of joint compound and for at least 4 days after application has been completed.

  1. maximum of 80 degrees F for 6 hours
  2. minimum of 70 degrees F for 12 hours
  3. maximum of 60 degrees F for 18 hours
  4. minimum of 50 degrees F for 24 hours

Terms

Read the following descriptions of gypsum panels. Write the type of panel being described on the corresponding blanks.

1. Most commonly used type; applied to interior walls and ceilings

2. Has a special tapered, rounded edge; produces a much stronger concealed joint than a tapered, square edge

3. Has greater resistance to fire because of special additives

4. Chemically treated to repel moisture; frequently used in bathrooms

5. Designed to be used as a base layer in multilayer systems

6. Faced with a specially treated blue paper; designed to receive application of veneer plastic

Homework Answers

Answer #1

Q. 2 Optiond is correct i.e. core board can be used as core of gypsum partitions.

Q.3. Option A is correct i.e. liner board consist of fire resistant board wrapped in moisture repellent paper.

Q.4. Option C is correct i.e. wonder board has a core of Portland cement reinforced with a glass fiber mesh embedded in both sides

Q.5 Option C is correct i.e. Dry wall consist of gypsum boards laminated with help of adhesives.

Q.6.Option C is correct i.e. When single-fastening gypsum panels, fasteners are spaced a maximum of 7 inches OC on ceilings and 8 inches OC on walls.

Q.7. Option d is correct i.e. Corner bead is used during drywall application to protect and reinforce exterior corners before plastering.

8. Option C is correct i.e. The fastest setting type joint compound will harden in 20 to 30 minutes.

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