The number of preheat holes determines the ____.
A) amount of preheat flame required
B) type of fuel gas to be used
C) arc length
D) kindling temperature
Correct Answer:
Verified
Q4: What is the finished flame product of
Q5: The higher the combustion rate of an
Q6: A homogeneous mixture of 50% acetylene and
Q7: A molecule of acetylene is made up
Q8: Which of the following metals are easy
Q10: Which of the following determines the amount
Q11: The final products of all clean-burning hydrocarbon
Q12: Acetylene is unstable at temperatures above _
Q13: The heat produced by the secondary flame
Q14: Acetylene is produced by mixing _.
A) acetyl
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