LESSON 5 SELF TEST EXERCISES
Upon completion of the text assignment, solve the following self test exercises based on lesson objectives.
NOTE: The following exercises are study aids. References to related information in the reading material are shown
in parentheses after each question. Write your answer in the space provided below each question. When
you have finished answering all the questions for this lesson, compare your answers with those given for
this lesson in the back of the booklet. Review the lesson as necessary.
Objective 1. TERMINOLOGY. Define the term "bill of materials: (Answer question 1.)
1. A bill of materials is a listing of the required quantities of all materials needed to complete a structure. The
quantities specified will be compiled using a combination of takeoffs and estimates. Which of the following
would most likely be computed by using a takeoff instead of an estimate? (para 5-2,a)
a. bags of cement for floor
d. pieces of lumber used for scaffolding
Objective 2. ORGANIZATION OF BILLS OF MATERIALS.
Describe the organization of a bill of
materials. (Answer questions 2 through 4.)
2. With respect to the column headings of a typical bill of materials, which of the following is used to designate
major groups of construction such as cladding, floor, interior electrical work, etc? (para 5-2,d) (fig 52)
a. section number
c. item number
b. section letter
d. item letter
3. Each of the major construction groups is listed separately in the body of the bill of materials, and is subdivided
into groups of common items. In which column will you find the specifications of individual items described
in detail? (para 5-4,b) (fig 5-2)
4. Assume that you have calculated a requirement for 10 pieces of 2 x 4, 8 feet in length. From this information,
what will be listed under the "quantities required" column? (para 5-4,b)(fig 5-2)
Objective 3. READING BILLS OF MATERIALS. Read a bill of materials for a construction project to
determine quantities needed for each type of material. (Answer questions 5 through 10.)
5. Reference figure 5-3. Which of the following is the correct calculation for determining the number of pieces
of 1 x 6 common lumber, 10 feet long, needed for the floor? Remember that boards are specified on drawings
by nominal sizes (refer to table 2-1 in lesson 2) and assume a 15-percent waste factor. (para 5-4) (table 2-1)
(fig 5-3)
a. (106" divided by 5 1/4") /.85
c. (110" divided by 5 1/2") /.85
b. (106" divided by 5 1/2") /.85
d. (110" divided by 5 1/4") /.85
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