The recommended method for applying the first layer of a built-up roof to prevent seepage of tar into the rafter spaces is to _____.
a. apply a layer of tar and allow it to dry before applying the first layer of felt
b. apply a dry layer of felt, followed by the first layer of tar
c. apply a layer of tar, followed by insulating boards that will absorb any excess tar
d. place a flexible membrane over the decking, followed by the first layer of felt and asphalt
Answer: B
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A small triangle at the end of dimension lines and leaders that indicates the direction and extent of a dimension is called a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
An alternative has the following cash flows: benefits = $50,000 per year; disbenefits = $27,000 per year; costs = $25,000 per year. The B/C ratio is closest to: (choose one)
(a) 0.92 (b) 0.96 (c) 1.04 (d) 2.00
Why should a cleanup filter drier always be used after performing a system flush?
What will be an ideal response?
When tri-state outputs are used in a GAL22V10, ________
A) all outputs must be controlled with the same control input B) only one product term can be used to control the output C) a single pin must be used for all tri-state control D) multiple product terms can be used to control the output