?A 5:12 pitch can be drawn at an angle of _____ degrees.
A. ?22 1/2
B. ?18
C. ?20
D. ?24
Answer: A
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The fire properties that determine the class of interior finishes are
A) fire -resistance rating and FSI. B) fire -resistance rating and SDI. C) FSI and SDI. D) fire -resistance rating, FSI, and SDI.
Which type of material below has the same outside diameter and wall thickness as the same nominal size and schedule of steel pipe?
a. Type K copper tubing b. Type L copper tubing c. PVC pipe d. ABS pipe
What is the least protective type of junction box that can be used in chemical plants?
a. Type 3R - Rainproof, Sleet Resistant b. Type 4X - Watertight, Corrosion Resistant c. Type 7 - Hazardous Locations, Class I d. Type 9 - Hazardous Locations, Class II
If wood is accidentally dented, it may be repaired even if the wood fibers are cut
Indicate whether the statement is true or false.