Determine the reactions and all bar forces for the truss in Figure P9.34. E = 29,000 ksi and members AB, BC, AD, and DC have A = 3 in. 2 , and members BD, DE, and CE have A = 1 in. 2 for all bars.
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List some of the reasons that amphibians are disappearing
What will be an ideal response?
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The Extinguishing Systems for Hoods, Vent Pipes, Flues or Ducts, as regulated by RCNY ยง15-04, could use all the following extinguishing agents except
A. Carbon dioxide B. Fine water spray C. Steam D. Hydrogen gas
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If a 120V feeder for nonmotor loads feeds a continuous load rated at 20A and a noncontinuous load at 30A, what size overcurrent protective device should be selected?
a. 45A b. 60A c. 70A d. 80A
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The insulating oil in a liquid-filled transformer should be regularly tested for _____.
a. dielectric strength b. conductivity ratio c. acidity d. water content
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