After a panel is cast, water should not be allowed to pond and freeze, because it would cause the concrete
surface to _____.
a. discolor
b. crack
c. cure unevenly
d. flake
d
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When the evaporative condenser is used in cold climates, freeze protection must be provided in winter.
Answer the following statement true (T) or false (F)
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For the best working position, the work should be ________
A) At chest or elbow level B) At neck or head level C) Overhead by about one foot D) At knee or ankle level
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The SAI system is used to reduce which exhaust emission?
A) HC B) CO C) NOx D) Both A and B
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Corrosion is caused by _____
a. acids created by the combination of air and liquid b. viscosity that is too high c. pressure that is too high d. a low pour point
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