What two methods are used to start three-phase compressors on large systems?
What will be an ideal response?
There are two methods used to start three-phase compressors on large systems: part winding and across-the-line.
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Rosa has 24 milk goats. The goats average 1.5 kids per year. To guarantee milk year-round, Rosa plans for one-sixth of the goats to have kids every 3 months. A goat averages 3.5 quarts of milk per day for 6 months.
a. How many kids are expected every 3 months? b. How many kids are expected per year? c. How many gallons of milk does a goat produce in 6 months? (Note: 1 mo = 30days.)
Use the chart provided to determine the length of a 20-penny nail.
a. 10"
b. 8"
c. 4"
d. 6"
With four wheel steering systems, what term describes the front and rear wheels turning the same direction?
A) Opposite phase steering B) Negative phase mode C) Same phase steering D) None of these
Three-phase AC power is used:
A) Only in Europe. B) Only in residences. C) In both residential and commercial buildings. D) Only in commercial buildings.