Most manual plasma arc cutting speeds are around ____ in. per minute. Any faster and it would be difficult for you to accurately follow the line.

A. 10
B. 14
C. 18
D. 20


Answer: A

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A rotating force is called ________.

A) Torque
B) Combustion pressure
C) Eccentric movement
D) Horsepower

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How do refillable and recovery cylinders differ?

A) The size of the cylinder B) The color of the cylinder C) The shape of the cylinder D) The material in the cylinder

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Compared to infrared analyzers, ultraviolet absorption analyzers are generally _____

A) more affected by temperature variations B) more selective and sensitive C) less applicable on liquid streams D) less suited for sulfur dioxide monitoring

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Refer to the figure. For a pipe diameter of 2", find the measurement between the tee and the ell.

Fill in the blank(s) with the appropriate word(s).

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