Daily inspection of an excavation must be performed by a(n) _____

a. qualified person
b. competent person
c. foreman
d. engineer


b

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Answer the following statement(s) true (T) or false (F)

The symbol for a limit switch illustrates a ball float.

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In the atmosphere, the concentration of CO2 gas is measured in parts per ____

A) hundred B) thousand C) million D) ten thousand

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The ____ command displays the amount of free and used memory in the system.

A. mem B. stat C. memstat D. free

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Polarity is defined based on the conventional current through a resistive element

Indicate whether the statement is true or false

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