Which of the following best describes the sectional shape of a keystone ring?
A. oval
B. round
C. rectangular
D. wedge
Answer: D
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Aesthetic value refers to ____________________, such as watching a butterfly sip nectar
Fill in the blank(s) with the appropriate word(s).
?When making practice welds, pipe shorter than 1 1/2 inches _________.
A. ?is easier to fit up B. ?lets you see the root surface easier C. ?overheats rapidly D. ?is harder to position for 6G welding
Purged air is released from the
A) bottom of the condenser. B) bottom of the chiller. C) top of the condenser. D) top of the chiller.
One fire extinguisher in a work area is sufficient:
A) Provided it is capable of extinguishing class A, B, C, and D fires. B) As long as it is the right class. C) If its capacity is large enough to handle a fire that could occur. D) When water is accessible in a work area.