Stairs are shown on floor plans by:
A. the width of the tread
B. the direction and number of risers
C. the lengths of handrails or guardrails
D. DN for down, UP for up, and R for risers
E. all of the above
Answer: E
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A standard A-size print is:
a. 22" X 34" b. 17" X 22" c. 11" X 17" d. 8.5" X 11"
Lumber is priced by the ____________________
Fill in the blank(s) with the appropriate word(s).
What is a secondary refrigerant?
A) A secondary refrigerant is used in the second stage of a staging system. B) A secondary refrigerant adds extra cooling capacity to the primary refrigerant. C) A secondary refrigerant is used to replace an older CFC or HCFC. D) A secondary refrigerant absorbs heat through temperature change only.
A series-parallel circuit consists of two series circuits (A and B) connected in parallel across a 5-V source. Branch A consists of an R1 of 2.2 k? and an R2 of 3.3 k?. Branch B consists of an R3 of 1.2 k? and an R4 of 4.7 k?. Total circuit resistance is
A) 2,846 ? B) 5,900 ? C) 5,500 ? D) 11,400 ?