Which duct system pressure is typically found in residential duct systems?

a. ±0.5 in w.c.
b. ±1.5 in w.c.
c. ±3.0 in w.c.
d. ±12.0 in w.c.


a. ±0.5 in w.c.

Trades & Technology

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____ are materials that do not permit electrons to flow through them easily.

a. Alternators b. Thermocouples c. Insulators d. Conductors

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Which is a typical lube used in rear drive axle assemblies?

A) SAE 75W-90 GL-5 B) SAE 80W GL-5 C) SAE 80W-90 GL-5 D) Any of the above, depending on the specification for the vehicle

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What should a technician do if they are called to work on an oil burner with a tripped safety reset?

A) Replace the cad cell B) Push the reset button and closely observe the ignition sequence C) Check the combustion chamber for unburned oil D) Replace the oil burner primary control

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A bus that will terminate the bus cycle unless a signal indicates that it should insert wait states is ________

A) asynchronous B) semi-synchronous C) synchronous D) quasi-synchronous

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