Un tipo de concreto que puede colocarse sin necesi- dad de vibrado es el _____.
a. concreto masivo
b. concreto de autocompac-
tación
c. concreto preempacado
d. concreto pesado
Answer: B
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While performing steel-erection work, it is best to wear _____.
a. shirts with open pockets for easy access b. short-sleeve shirts to keep your arms free c. long-sleeved shirts d. an unbuttoned shirt over a t-shirt
On what basis are materials chosen for a particular application?
What will be an ideal response?
One of the most universally tested and accepted precepts is that research and education lead the way in advancing the quality of life of people and companion animals
A. True B. False
What is the usual setting for the limit on the fan/limit switch of a warm air furnace?
A) 250°F to 300°F B) 80°F to 100°F C) 180°F to 200°F D) 120°F to 150°F