How many turns and holes are needed on the 54-hole index circle to index 9 degrees and 10 minutes?
A) 1 turn + 8 holes B) 1 turn + 9 holes C) 1 turn + 10 holes D) 1 turn + 15 holes
C
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Answer the following statement(s) true (T) or false (F)
Insulation actually can pay for itself.
Preheating of the weldment helps to:
A) Remove moisture B) Reduce martensite formation C) Reduce hydrogen absorption D) All of the above
The terminal and wire resistance values are critical in electric furnaces because the large current draw from the strip heaters:
A) Causes electro radiation. B) Increases if the overall circuit resistance increases. C) Turns even small resistances into heat that accelerates oxidation. D) Causes arcing to ground at connections with a high resistance.
A ____ fitting is a standard or custom duct component that connects one duct size to a different duct size, or one duct shape to a different duct shape, or connects both different shapes and sizes.
A. transition B. transmission C. reduction D. variation