A movement joint allows stress-free expansion and contraction of buildings and components while a static joint subjects the building and components to movement stresses. So, why are movement stresses undesirable?
What will be an ideal response?
Movement stresses are an addition to the stresses caused by loads on a component. Resisting the additional stresses requires increasing the cross section of the component, which increases the cost.
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The most common form of on-site waste water treatment for homes not hooked up to sewer lines is the ________
A) active composting method B) chemical "flush" system C) septic tank and drain field D) soil enrichment process E) electrical induction sterilization
Top dressing _____________________
A. is the addition of a thin layer of soil to the turf grass to promote the natural decay of thatch B. is a process where a ½ inch diameter, 3 inch long plugs of turf are removed from the lawn C. is the addition of wood bark mulch to a flower bed D. none of the above
Solve this proportion. A wire 100 feet long has a resistance of 800 ohms. How long is a copper wire of the same area whose resistance is 600 ohms, in feet?
Fill in the blank(s) with the appropriate word(s).
Socket welding of galvanized pipe is rare, because galvanized pipe _____.
a. is more expensive than carbon steel b. is not available in the sizes needed c. produces poisonous gases when welded d. cannot be welded