Draw the influence lines for the vertical and horizontal reactions, A X and A Y , at support A and the bar forces in members AD, CD, and BC. If the truss is loaded by a uniform dead load of 4 kips/ft over the entire length of the top chord, determine the magnitude of the bar forces in members AD and CD.
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If we are harming nature, we are harming:
A) Ourselves B) Future generations C) Nobody, it is part of the cycle of life D) All of the above
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In a series circuit, total power PT is calculated as:
A) P1 × P2 × P3 × etc. B) P1 + P2 + P3 + etc. C) 1/P1 + 1/P2 + 1/P3 + etc. D) P1 ÷ P2 ÷ P3 ÷ etc.
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A straight line that intersects a circle at only one point, regardless of its length, creates a point of tangency
Indicate whether the statement is true or false
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What seam design is the most common with metal roofs?
A) Metal formed seam design B) Roll seam design C) Impervious seam design D) Standing seam design
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