Explain why it is necessary to install a good vapor retarder under a concrete slab-on-ground over which thin-set (epoxy) terrazzo is laid?

What will be an ideal response?


Because epoxy terrazzo is virtually vapor impermeable. Any vapor migrating from the soil below (through the concrete slab) will delaminate terrazzo flooring because of the vapor pressure.

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Progress in human ____________________ has improved because of research by agriscientists using animals and plants

Fill in the blank(s) with the appropriate word(s).

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_______________ chute plates are placed in close proximity to where the contacts open, and they use both mass and space properties to help extinguish the electrical arc before it becomes too large.

Fill in the blank(s) with the appropriate word(s).

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In most cases, if the beveling equipment is in good working order, your cut should be _____ and you should see little to no light coming from under the root face.? ?  

A. heavy? B. deep? C. round? D. square?

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If a material has an R-value of 30, then the corresponding U-value will be ____.

A. 0.033 B. 0.33 C. 33 D. 330

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