Question

drywall installation
trainee name: khalil muhammad date: _______________
multiple choice: choose the correct answer.

1. gypsum board retards the spread of fire because ______.

a. its core is exposed on the end
b. its field and edge are covered with paper
c. its core is composed of all man-made materials
d. it contains water in its crystal molecular structure

1. one of the advantages of gypsum board is that it is ______ because it is readily available a

easy to apply, repair, decorate, and finish.
a. economical
b. sustainable
c. versatile
d. durable

1. gypsum board is considered a(n) ______ material because in addition to naturally mined

gypsum, it uses flue gas desulfurization (fgd) gypsum, a synthetic byproduct of coal-
burning power plants.
a. durable
b. sustainable
c. versatile
d. economical

1. if you break the face paper on a gypsum board while driving a nail or screw, ______.

a. remove the gypsum board
b. remove the nail or screw
c. drive the nail or screw farther into the gypsum board so it is invisible
d. drive another nail or screw properly near the same place

1. when you are installing fire-resistance-rated wallboard, the nails should penetrate the

by at least ______.
a. $\frac{1}{2}$\
b. $\frac{3}{4}$\
c. $\frac{7}{8}$\
d. $1\frac{1}{8}$\

1. the head of a drywall hammer has a ______, which transfers to the depression arou

nail head and helps joint compound to adhere.
a. flat surface

module 45104 practice exam
note: this exam is not eligible for a credential.
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Explanation:

1. Gypsum's crystal structure holds water, which evaporates to slow fire spread.
2. The described ease of use/modification matches the definition of versatile.
3. Using recycled byproduct gypsum makes the material sustainable.
4. Breaking face paper means the fastener is not properly set; remove it to avoid damage.
5. Fire-rated wallboard nails need minimum 3/4" penetration for secure, code-compliant installation.
6. Drywall hammer heads have a textured surface to create a depression for joint compound adhesion.

Answer:

1. d. it contains water in its crystal molecular structure
2. c. versatile
3. b. sustainable
4. b. remove the nail or screw
5. b. $3/4''$
6. (Note: The option text is cut off, but the correct technical answer is a textured/serrated surface; based on standard drywall tools, the intended correct option would be the one describing this feature)