What is the type of gas that is created as a byproduct of other manufacturing processes?
A) Natural gas B) Propane C) Manufactured gas D) Liquid petroleum
C
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Codes require storm drainage systems in all _____.
a. regions with 100-year averages of 3 inches or more
b. private waste disposal systems
c. commercial and residential buildings
d. DWV systems
An example of a trace or micro-mineral is:
A. potassium B. sodium C. magnesium D. selenium
An open-collector TTL gate
A) must have an external pull-up resistor to produce a HIGH. B) must have an external ground connected to the output to produce a LOW. C) must have an external pull-up resistor to produce a LOW. D) must have a transistor added to the output to produce a HIGH.
Which of the following is considered dangerous when working on equipment or machinery?
A. Electricity B. Hydraulics C. Compressed air D. a, b, and c