Why are different heating elements in an electric furnace normally step sequenced?
A) To avoid a large current draw at startup
B) To prevent a blast of hot air coming out of the ducts on startup
C) To match the number of active elements to the heat load
D) To reduce the size power wire required for the furnace
A
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Edge forms made of flexible plastic can be curved to a radius of as little as _____.
a. 1 foot b. 2 feet c. 3 feet d. 4 feet
In most cases, the magnetizing force in a magnetic circuit is produced by the effects of an electrical current in a coil with a(n) ____________________.
Fill in the blank(s) with the appropriate word(s).
When using a DMM, the black lead usually goes in which port?
A) VDC B) COM C) 10A D) None of these
Instrumentation amplifiers accurately output the difference between the inputs providing common-mode rejection
Indicate whether the statement is true or false