Vacuum pumps are rated by:
A) Inches of mercury vacuum. B) CFM capacity and blank-off pressure.
C) CFM capacity. D) Blank-off pressure.
B
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Which of the following are used to protect conductors from being damaged by the sharp edges of the threaded conduit end
a. Locknuts b. Insulated bushings c. Conduit bodies d. O-rings
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The ____________________ is the change in size a material (solid, liquid, or gas) sees as temperatures go up.
Fill in the blank(s) with the appropriate word(s).
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Valve stem height is the measurement of the valve:
A. Installed and closed B. Installed and open C. From valve tip to valve spring D. None of the above
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The speed of air is measured in:
A) Force per minute - FPM. B) Feet per minute - FPM. C) Cubic feet per minute - CFM. D) Capacity per minute - CFM.
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