?A molecule of acetylene is made up of ____.
A. ?one acetone atom and one carbon atom
B. ?two oxygen atoms and two carbon atoms
C. ?one hydrogen atom and one carbon atom
D. ?two hydrogen atoms and two carbon atoms
Answer: D
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A _____ is defined as a round terra-cotta or fired clay insert that fits into the flue lining from the heating source acting as a sleeve in the chimney to receive the furnace or stove pipe.
A. flue ring B. thimble C. receptacle D. sock
Determine the required pin diameter at A in Figure 13.6 if it is in double shear. The pin is made of aluminum. Use a factor of safety of 2.5 based on yield strength. Choose the next larger commercial size if pins are available in 0.5 mm sizes.
 FIGURE 1.png)
When the axis of the hole at an extreme angle inside the positional tolerance zone. This is referred to as _________________________.
Fill in the blank(s) with the appropriate word(s).
A Purchasing Agent, wishing to dispose of waste plastic from one of their processes should first contact:
A) plant maintenance. B) the supplier. C) the customer who buys the products. D) local government regulators. E) a buyer of waste materials.