What does the initial rate of absorption (IRA) of a brick refer to? How does the IRA value affect brick wall construction?
What will be an ideal response?
IRA refers to how water-absorptive a brick is. Bricks with a high IRA value must be dampened before being laid so
that they do not suck water away from the mortar, leaving mortar with inadequate amount of water (for water and
Portland cement reaction), reducing the strength of the mortar.
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What is an area located at the bottom of a vessel that receives and temporarily stores drainage from the lowest point in that vessel?
A) Sump B) Mixer C) Manway D) Gauge hatch
A contractor originally estimated the total cost of a job including labor and materials at $74,800. Because of increasing costs, a new estimate of $81,400 is made, increasing the labor cost by 12.0% and the material cost by 8.50%. What is each cost, labor and materials, of the new estimate? Round the answers to the nearest ten dollars.
Fill in the blank(s) with the appropriate word(s).
The long economic boom from World War II to about 1970 was especially fueled by
A. low energy costs. B. reduced military expenditures. C. low inflation. D. low taxes. E. a more highly educated work force.
Which job would be concerned with the maintenance of shop equipment?
A) Shop owner B) Service manager C) Shop foreman D) Any of these