The amount of current required to keep the SCR turned on is called the ____________________ current.
Fill in the blank(s) with the appropriate word(s).
holding
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?If the reading on the vernier metric caliper is 13.66 mm, which vernier scale graduation most closely coincides with a main scale graduation?
A. 2 B. 6 C. 8 D. ?10
Pressing the gun switch to start the wire feeder is called tricking the gun.
Answer the following statement true (T) or false (F)
If the vector diagram of two AC waveforms is a right angle, then the waves _____.
a. are in phase b. are 90° out of phase c. have the same frequency d. have the same peak voltage
When selecting a point to tie off your own body harness, you should always choose an anchorage point that is
_____. a. at least 20? above where you will be working b. directly below your working position c. capable of supporting at least 5,000 pounds d. low enough to allow you to drop to the ground from the end of your lanyard