Another name for the telephone transmitter is the ________
Fill in the blank(s) with correct word
handset
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____________________ hazards are any chemical that reacts with water to release a flammable gas or health hazard.
Fill in the blank(s) with the appropriate word(s).
?Why would a welder stick the end of the filler rod in the weld pool as the weld is being stopped?
A. ?It accidentally happens sometimes but they would not do it on purpose. B. ?To prevent dropping it when changing positions. C. ?To help to prevent crater cracking. D. ?It cools off the end of the filler rod to prevent oxidization.
Woring drawings are _________ plans for a building.
A. hand B. original C. design D. construction
A three-phase, ac /dc converter is excited by a three-phase source of 480 V (rms and line-to-line). Compute the following:
a. The rms voltage across the load when the triggering angle is 30o. b. The average voltage across the load when the triggering angle is 140o . Keep in mind that the conduction is incomplete when the triggering angle is greater than 90o