Comprehensive exam questions

PDC

PDC

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can anyone help me with a few questions im struggling with on practice exams for comprehensive cdt exam?

1. When torch soldering, which part of the flame should be used?
A.mixing
B. Reducing
C. Combustion
D. Oxidizing

A few more ill post if anyone can help. My answer keys give different answers to the same question. Confusing.. If this doesnt work im back to digging in the air force manuals... Haha

E. The hot part. Sorry, I couldn't resist!


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JKraver

JKraver

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B. Reducing
Though I have not cast in years... I hope I am not wrong lol.
 
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