Metal roofing is available with as much as ____% recycled content, and the waste is generally fully recyclable.

A. 60
B. 70
C. 85
D. 100


Answer: D

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A technician measures a circuit resistance with an ohmmeter and finds 1 ohm of resistance. He then connects a 12V battery to the circuit and measures a current of 1A. Per Ohm's law, he expected 12A of current to flow. What is a likely reason for the discrepancy?

A. Ohm's law is only a theory. B. Positive temperature coefficient of the load C. Lenz law D. The circuit was shorted to ground when the resistance measurement was obtained.

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A ball peen hammer can be used to flatten the bolt holes on a steel oil pan.

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

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All these are returnless fuel systems EXCEPT ________

A) Mechanical returnless fuel system B) Demand delivery system C) Electronic returnless fuel system D) All of these are types of returnless systems.

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When charging a system with vapor refrigerant from a refrigerant cylinder the cylinder will become ____.

A. cold B. very warm C. the same temperature as the ambient air

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