In one day of a vacation, a family drive 127 miles, 192 miles and 71 miles. What is the total distance driven?
A) 390 miles B) 380 miles C) 400 miles D) 379 miles
A
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A technician is contacting a live circuit with one hand and is not being shocked. However, they can receive an electrical shock:
A) When they release the electrical wire. B) If they fail to ground themselves. C) If they ground themselves. D) If they touch the same live wire with both hands.
The ductwork connections for a rooftop packaged unit are typically:
A) On the top of the unit. B) On the side of the unit. C) On the bottom of the unit. D) Not used because they do not connect to ductwork.
A ____ connection is caused by the flux and oxidation particles staying between the solder pad and lead. It is the result of not enough heat.
A. cold solder B. rosin C. fractured or disturbed D. wicking
The copper tubing used in the field piping of refrigeration systems is type ____________________.
Fill in the blank(s) with the appropriate word(s).