A 3-phase, 4-wire, wye-connected power system supplying nonlinear loads may necessitate a design allowing for the possibility of ____ on the neutral conductor.
A. transient arching
B. low harmonic neutral currents
C. excessive heat
D. high harmonic neutral currents
Answer: D
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Answer the following statements true (T) or false (F)
1. Soil and rock consist essentially of the same matter. 2. Cohesive soils are those in which the dry soil particles tend to separate from each other when mixed with a small amount of water. 3. If the bearing capacity of the soil is high, the footing area required is large. 4. The building codes do not mandate geotechnical investigations for all building construction sites. 5. A raft foundation is a shallow foundation system.
This type of seal does not come in contact with the moving parts.
a. dynamic seal b. static seal
What are the advantages of a drop-down side curtain on a passively cooled greenhouse versus a roll-up side curtain?
What will be an ideal response?
Pipe threads are standardized by the A.N.S. A.N.S. stands for ____.
A. All Nominal Standard B. American National Standard C. All New Steel D. Apparent Nominal Standard