The useful life of a ceramic nozzle is affected by the _____________.
A) tungsten type and shielding gas flow rate
B) whether the torch is air or water cooled
C) current level and proximity to the work
D) type of current and type of base metal
Correct Answer:
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Q16: Which of the following is true of
Q17: DCEP concentrates _ of the arc heat
Q18: Which of the following is a way
Q19: DCEN concentrates about _ of its welding
Q20: Which of the following is true of
Q22: What is the purpose of a gas
Q23: Which nozzle material is clear?
A) ceramic
B) alumina
C)
Q24: The high frequency may be set so
Q25: The _ is the cone-shaped sleeve that
Q26: Flowmeters measure the flow rate of a
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