John Jacob Astor
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Fur trader and real-estate speculator who left behind a fortune of 30 million dollars.
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Using ____, the calculation of important mechanical properties of parts and assemblies can be done easily. The volume that a part or assembly occupies usually can be calculated with a single command after the computer model has been built.
A. descriptive geometry B. solid modeling C. 2-D graphical analysis D. graphical calculus
Describe a resonant circuit.
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Why are the 90 percent condensing furnaces unique?
A) The flue-gas affects the venting material at a greater than normal rate. B) The venting of this type of furnace is made of PVC and is easy to seal airtight. C) The flue-gas is excessively hot and can cause fires if improperly used. D) The venting material is rare, as it is no longer manufactured due to defects.
When choosing a lubricant, high loads coupled with high speeds require _____
a. only high-viscosity lubricants be used b. only low-viscosity lubricants be used c. only naphthenic lubricants be used d. especially careful thought and research to make the proper choice