A pozzolanic material used in making very high-strength concrete is
a. fly ash
b. hydrated lime
c. silica fume
d. diatomaceous earth
c
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In the cases of Fletcher v. Peck and Dartmouth College v. Woodward, Chief Justice John Marshall's rulings
A. erected barriers against democratic attacks on property rights. B. established the principle of judicial review. C. demonstrated his support for states' rights. D. upheld federal authority against individual rights at the federal level. E. held federal regulatory laws unconstitutional if they conflicted with the U.S. Constitution.
Problems may arise when the intake of cholesterol far exceeds the amount needed
Indicate whether the statement is true or false
Why do some commercial buildings need air conditioning in the winter?
A) Lower temperatures reduce the spread of bacteria. B) The complexity of control systems for commercial buildings often causes a system to cool a building even when cooling is not needed. C) Commercial buildings are maintained at lower temperatures to improve productivity. D) Commercial buildings often have large internal heat loads from people, lights, and machines.
Which of the following switches can cycle the compressor clutch?
A. Thermostatic switch B. Pressure cycling switch C. Trinary switch D. All of the above have the ability to cycle the clutch