Which subatomic particle has no charge?

a. Proton
b. Neutron
c. Electron
d. Ion


b. Neutron

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What are the three things that the U.S. Constitution regulates power among?

What will be an ideal response?

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Mesh openings in a safety net are limited to _____

a. 3" on the side b. 4" on the side c. 5" on the side d. 6" on the side

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Water chillers require a(n) ____________________ in the chiller control circuit to ensure that the chilled water pump is operating before the water chiller refrigeration unit operates.

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

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According to the U.S. Department of Labor, the number of welding jobs in 2014 will:

A) Decrease B) Increase C) Stay the same

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