Which of the following is the primary cause of corrosion in ferrous piping systems?

A) Alkalinity.
B) Oxygen.
C) Calcium salts.


B) Oxygen.

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What are the advantages and disadvantages of deep-cycle lead antimony batteries?

What will be an ideal response?

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Identify the type of weld created when one piece is square and the other piece has a beveled surface.

What will be an ideal response?

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A frequency ________ is a circuit that can measure and display the frequency of a signal

Fill in the blank(s) with correct word

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The form used to report work-related injuries and illnesses is _____

a. DOT Form 75 b. OSHA Form 300/300A c. IRS Form 1040A d. OSHA Form 301

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