Before changing a fuse, the technician should:
A) Make sure the circuit is de-energized.
B) Make sure the circuit is energized.
C) Firmly grab a ground connection.
D) Temporarily jump the fuse out to make sure it needs changing.
A
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What are the two main disadvantages of layering?
What will be an ideal response?
The NEC® requires a clearance of at least __________ feet above final grade for service conductors where they are connected to the building, above sidewalks and other areas accessible to pedestrians.
a. 18 b. 12 c. 10 d. 8
After a root pass has been applied, any excess buildup or undercut should be removed by _____
a. increasing the amperage of the welder during the hot pass b. grinding the face of the root pass with the edge of a grinding disk c. grinding away narrow strips of material with a cutoff wheel d. carefully heating and cutting away the excess with a torch
A garage owner has an oil barrel that contains 68 1/4 gallons. If sales average 11 3/8 gallons a day, how many days will the oil last?
A. 4 B. 5 C. 6 D. 7