What is normally used for the ground terminal on a spark igniter?
A) Spark igniters do not require a ground because they operate on DC voltage
B) The white neutral wire supplying current to the furnace
C) The burner assembly
D) A separate ground rod
C
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Which of the following are usually made of galvanized steel not less than 0.0304" in thickness?
a. single wall chimneys b. single wall vent connectors c. Type B vents d. draft hoods
Which organization in the United States publishes various codes related to the design and construction of buildings?
What will be an ideal response?
In engineering notation, 106 is know by the term ____.
A. kilo B. nano C. tera D. mega
Another technician will be mixing soap and water to clean a vehicle. The soap is diluted 1-part soap to 50 parts water. Four gallons of water is in the bucket. How much soap should be put in the water?
What will be an ideal response?