Why are duct friction charts designed for sheet metal duct ducts not accurate for fiberglass ductboard or flexible ducts?
What will be an ideal response?
Fiberduct and flex duct have a higher friction rate than sheet metal, so sheet metal friction charts are not accurate for either fiberduct or flex duct.
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What are the primary characteristics of a strong acid?
What will be an ideal response?
When planting balled and burlapped plants on poorly drained sites, how much of the soil ball should be allowed to extend above grade?
a. 1 to 2 inches c. 6 to 7 inches b. 3 to 5 inches d. 3 to 4 none
Phrases that identify mandatory rules include__________ and __________. Phrases that identify permissive rules include __________ and __________.
What will be an ideal response?
Strips of metal are cut from a 3-foot by 7-foot (84-inch) sheet. Each strip is 3 feet long and 18 1/2 inches wide. Find the number of complete strips that can be made from this sheet.
Fill in the blank(s) with the appropriate word(s).