Who were the first scientists to discover brassins, and what material were brassins extracted from?
What will be an ideal response?
Brassins were first discovered by Mitchell and Gregory in 1972; they were isolated
from rape pollen.
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Increasing the voltage causes the electric current flowing through a fixed value of resistance to increase.
Answer the following statement true (T) or false (F)
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Which of the following steel shapes is most commonly used for the structural frame of buildings?
A) M-shape B) C-shape C) W-shape D) S-shape E) HP-shape
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What five important considerations must the drafter keep in mind when preparing structural steel shop drawings?
What will be an ideal response?
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Oblique pictorials that are drawn at a ____-degree angle may be sketched using isometric grid paper.
A. 30 B. 45 C. 60 D. 90
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