Severe GTA welding porosity is usually only found when welds are being made by fusing the base metal together without adding filler metal.

Answer the following statement true (T) or false (F)


True

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What type of piping material must not be used if the hydronic system contains a glycol-based anti-freeze solution?

a. Galvanized pipe b. Copper tubing c. PVC pipe d. Stainless steel pipe

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A popular alternative to Masterspec is ____________________

Fill in the blank(s) with correct word

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Oil pump end clearance should be less than zero (pre-loaded)

Indicate whether the statement is true or false

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Which of the following is not one of the four applications of threads?

A. to fasten parts together B. for fine adjustments between parts C. for gross measurements D. to transmit motion or power

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