Rod, pipe, and plate electrodes must have a resistance to ground of at least ___
a. 25 ohms or less
b. 35 ohms or less
c. 45 ohms or less
d. 75 ohms or less
a. 25 ohms or less
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Why does oil slugging occur in a compressor?
A) Oil slugging is caused by a sudden return of large amounts of refrigerant oil. B) Oil slugging is caused by a sudden change in the amount of oil. C) Oil slugging is caused by a sudden change in oil temperature. D) Oil slugging is caused by a sudden change in oil pressure.
Why are mushroomed chisel heads dangerous?
A) Chips may break off. B) The head becomes extremely bouncy. C) The mushrooms on the head make it slippery. D) The chisel is soft and rotten.
This is produced when the cutting plane is parallel to the long axis of the structure. It is generally perpendicular to most structural materials used to frame the roof, ceiling, and floor systems:
A. detail section B. full section C. longitudinal section D. partial section E. traverse section
Night driving problems require special attention from the professional driver in the form of changes in
A. inspection routines B. scan and visual search C. space management D. all of the above