Name the four common causes of weld inclusions.?
What will be an ideal response?
Four common causes of weld inclusions are improper joint cleaning between weld passes, improper groove preparation, joint design, and improper welding technique.?
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If a service entrance is rated at 200 amperes, the service entrance conductor size would be a minimum of 2/0 copper or 4/0 aluminum. According to Table 250.102(C)(1) the minimum grounded conductor or bonding jumper size would be _____ AWG.
a. 1 b. 2 c. 3 d. 4
The switch in the circuit of Fig. 16.47 has been closed for a long time but is opened at t = 0. Determine i(t) for t > 0.
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What happens if a technician comes into contact with the spark-ignition circuit while it is energized?
A) The technician will cause the circuit to short out. B) The technician will experience great discomfort. C) The technician will likely not notice the contact. D) The technician will possibly die.
Las aplicaciones de una única capa necesitan que la unión longitudinal:
a. sea escalonada. b. esté en la línea media horizontal del tubo. c. esté paralela a la unión de la circunferencia. d. esté en los lados inferior y superior de los tramos de la tubería horizontal.